DNV Ship rules Pt.5 Ch.4 - Chemical Carriers

DNV Ship rules Pt.5 Ch.4 - Chemical Carriers
RULES FOR
CLASSIFICATION OF
SHIPS
'iR\i&I__ _
!!:=!/_~\W
NEWBUILDINGS
SPECIAL SERVICE AND TYPE
ADDITIONAL CLASS
PART 5 CHAPTER 4
CHEMICAL CARRIERS
JULY 1999
PAGE
SECTIONS
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
General Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Ship Arrangement and Damage Stability .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. 7
Arrangement in Hold Spaces .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. . 10
Scantlings and Testing of Cargo Tanks .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. . 11
Piping Systems in Cargo Area .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. 13
Cargo Heating and Cooling Arrangements . .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. . 17
Marking of Tanks, Pipes and Valves ..................................................................... 18
Gas freeing and Venting of Cargo Tanks ................................................................ 19
Mechanical Ventilation in the Cargo Area ............................................................... 21
Fire Protection and Extinction .............................................................................. 23
Electrical Installations .. , ..................................................................................... 26
Instrumentation and Automation ........................................................................... 28
Tests after Installation .. .. . . . .. . .. .. .. . . . .. . .. .. .. . . .. .. .. . . . .. . .. . . . .. . .. .. .. .. . .. . .. . . . .. .. .. . . .. . .. . . . .. . .. 29
Additional Requirements for Certain Cargoes .......................................................... 30
Inert Gas Plants ................................................................................................ 37
Personnel Protection .......................................................................................... 38
APPENDICES
A List of Cargoes - Tanker for Chemicals .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. . 40
DET NORSKE VERITAS
Veritasveien 1, N-1323 Hm>il<, Norway Tel.: +47 67 57 99 00 Fax: +47 67 57 99 11
CHANGES IN THE RULES
General
Main changes
The present edition of the Rules includes additions and amendments
decided by the Board as of June 1999, and supersedes the July 1998
edition of the same chapter.
• Sec.16 Inert Gas Plant
The Rule changes come into force on 1 January 2000.
This chapter is valid until superseded by a revised chapter. Supplements will not be issued except for an updated list of minor
amendments and corrections presented in Pt.O Ch.1 Sec.3. The introduction booklet is nonnally revised in January and July each
year.
Revised chapters will be forwarded to all subscribers to the Rules.
Buyers of reprints are advised to check the updated list of Rule
chapters printed in Pt.O Ch.1 Sec.1 to ensure that the chapter is
current.
- To improve the basis for approval of nit!Ogen systems, the IACS
Unified Requirements for Inert Gas Systems on Chemical
Tankers, (F20) has been included as follows: Sec.16.
- Item B!Ol 1) has been amended and items B200 to B300 have
been added.
Corrections and Clarifications
In addition to the above stated rule amendments, some detected errors have been corrected, and some clarifications have been made
in the existing rule wording.
Comments to the Rules may be sent by e-mail to [email protected]
For subscription orders or information about subscription terms, please use [email protected]
Comprehensive information about DNV and the Society's services is found at the Web site http://www.dnv.com
© Det"Norske Veritas AS
Computer Typesetting by Division Technology and Products, Det Norske Veritas AS
Printed in Norway by Det Norske Veritas AS July 1999
7.99.5500
~u~~YP~i;~~f o~u~!;r~r~°::d 0Jir~~Trogs~ :r~ca~1!g~~0H:V~~~r~~~eb~~~~=~:!3o~Ys~~(i ~~g~~~~~~c:n°~~~~~~i~~u0~1 ~6\eNn°~f~;svf;!t~!'e ~~~r~:J ~o~~~ ~:;~~~! i~a~~~=~o~~m:6~id~~0 rh~~
the maximum compensation shall never exceed USO 2 million.
~f ~~~ ~~~~~~oy.e·r~~;.Norske Verltas" shall mean the Foundation Det Norske Veritas as well as all its subsidiaries, directors, officers, employees, agents end any other acting on behalf
CONTENTS
SEC. 1
GENERAL REQUIREMENTS ..•••.....•••..••....• 1
A. Classification •.. •• . . •• •. . . .• •• . . •• . . . . .• •. . . •• •. . . •• •• . . . .• .• . •.• ••
A 100 Application . . . . .. . . . . . . .. . . .. . . . . . . . . .. .. . . .. . . . . .. . . . . . .. . .
A 200 Class notations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
A 300 Special features notations . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1
I. Anodes, Washing Machines and Other Fittings in Tanks
and Cofferdams ••....•.••••......••.. :. •• •. . . . . •. •• . •. . •.. .. . . .. • 9
100 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
1
1
1
J
I 00
Arrangement ................... :". . . . . . . . . . . . . . . . . . . . . . . . . . . 9
B. Defmitions ..•...••.. .....•..••........ ..••......••..•......••••..•• 2
B 100 Terms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
K. Stowage of Cargo Samples •• . •. . •• .. .. . . •. •• •• . . . . .• •• . . •. . . . . 9
K 100 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
K 200 Arrangement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
C. Documentation •••..••.. ..••.•.•••.. ...•.. ..•••...•••••.....•..•••• 3
C 100 General .. .. .... .. .... ...... .. .... .. .... .. .... ... ...... .. .... 3
C 200 Plans and particulars . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
SEC. 4
D.
D
D
D
D
D
D
Tank
100
200
300
400
500
600
Types ..••••...••••..•... ....•. ..••......••..••..•.. .•••.. ....
Integral tanks, general . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Integral tanks, type al .... .. .... .. .... .. ... . .. .... .. .. .. .
Integral tanks, type a2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . .
Independent tanks, general . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Independent tanks, type a3 . . . . . . . . . . . . .. . . . . . . . . . . . . . . .
Independent tanks, type a4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ARRANGEMENT IN HOLD SPACES •.•....... 10
A. General •..•.••....•.••••.......•..•.••••.•..••.•.....••••.....•.... 10
A 100 Distance between tanks and hull . .. .. .... .. .. .... .. . .. 10
4
4
4
4
4
4
4
C. Sealing around Tanks ... ..•••••••.. ........ ..••.•..•••.....••. 10
C 100 General ..... .. .... .. .. ...... .. ...... .. .. .... .. .... ... .. .. .. 10
E. Filling Limits for Cargo Tanks . .• •• . . •. . .. . . .. •• . •. . .. .. . . •• • 5
E 100 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
D. Earth Connections .•....•..••••••.....•••.. ..••••......... .••••. 10
D 100 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . .. . . 10
F. Signboards . . . ••• •... .• . . •. •. . . .. .• . . . . .. . . . . •• •• . . .. ... . . •• •• . . .. .. 5
F I 00 References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
SEC. 5
G. Cargo Information •...... ..••.. .....•..••••....••..•.••.....••.• 5
G 100 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . .. . . . . 5
A. Scantlings of Cargo Tanks . . . ..• •• •. . . .• •• . . . . .• •• . •. . •• . . . . . 11
A I 00 Integral tanks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
A 200 Independent tanks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
H. Procedures and Arrangements Manual •••.. ........••••... 5
H 100 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
SEC. 2
MATERIALS ...••••....••..•.•.....••.•..•......••••..•. 6
A. General •. •. . . . •. •. . •• . . .• •• •• .• .. . . .• •• •• . . •• ... . . .• •• . . . . .. .. . . •• •• 6
A 100 Selection and testing . . . . . .. . . . . .. . . . . . . ... . . . . . . . . . . . . . . . . 6
B. Hull ..•••.....•••........••..........•••............•••.....••..•.••.. 6
B 100 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
C. Cargo Tanks . ..••........•.••.. ...... ..•••.........•••••.. ...•.. .. 6
C JOO General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
D. Cargo Piping .••.. ..•... ..••..•..... ..•..•.. ...... ..•••••........•. 6
D 100 General .. . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . 6
D 200 Documentation of material quality and testing . . . . . . . 6
SEC. 3
SHIP ARRANGEMENT AND DAMAGE STABILITY ••.......••..••..........•••........•..•••......••.. 7
A. Damage Stability . . •• . . •. •. . . .• •• . . .. .. . . . . .. •• . . •. •. . . . . . .• •• . . .. 7
A 100 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
A 200 Requirements for watertight integrity . . . . . . . . . . . . . . . . . 7
B. Cargo Tank Location .•••........ ..••••.. ...... ..•••. .........•• 7
B 100 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . 7
C. Location and Separation of Spaces •.•.... ..••.•........ .•.•. 7
C I 00 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
D.
D
D
D
Arrangement of Entrances and Other Openings .. .......
100 Accommodation and gas safe spaces . . . . . .. . . . . . . . . . . .
200 Gas dangerous spaces and cargo tanks . . . . . . . . . . . . . . . .
300 Access to and within cargo tanks, void spaces and
other spaces in the cargo area . . . . . . . . . . . . . . . . . . . . . . . . . .
8
8
8
8
E. Guard Rails and Bulwarks .. . . . . ••• •• . . . . .. . . . . •• •. . . .. .• . . .• • 9
E 100 Arrangement . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9
F. Cargo Pump Rooms, Cofferdams and Pipe Tunnels ... 9
F 100 General .. .... .. .. . .. .... .. ... ... .. .... .. .. ..... .. .... .. .... 9
G. Diesel Engines Driving Emergency Fire Pumps, et.c. •... 9
G I 00 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
H. Chain Locker and Windlass .... ..•••••.. .....•..•••.......... 9
H 100 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2
J. Slop Tanks ...•••••.......•..•••••.....•.•,........................ 9
B. Gas Pressure Relief Devices .••••.•............•••• .-.•.....••• 10
B 100 Pressure/vacuum relief valves . ... .. .. .... .. ... . .. ..... 10
SCANTLIN GS AND TESTING OF CARGO
TANKS ..••..•.••••......••.•..••••.....•••....•.••......• 11
B. Requirements for Testing of Welds and NonDestructive Testing .. .• . . . . •• •• . . . . .. •• •• . . . . •. . . . . .. •• . . . .. .. . .
B 100 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
B 200 Welding procedure tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
B 300 Production weld tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
11
11
11
11
C. Testing of Tanks .. ...••••.. ........ ..•..•.... .....•..•.........• 12
C 100 Integral tanks .... .. .. ... ... .. .. .... .. .. .... .. ...... ..... .. 12
C 200 Independent tsnks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
12
SEC. 6
PIPING SYSTEMS IN CARGO AREA .••....•.. 13
A. Pumping and Piping Systems for Bilge, Ballast and
Fuel Oil ••..........•....••.......•••..............•••••........••••
A 100 General ... .. .. .... .. .. .... .. .. .. . . .. .. .. .... ... .. . ... .... ..
A 200 Cargo pump rooms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
A 300 Cofferdams and pipe tunnels . . . . . . . . . . . . . . . . . . . . . . . . . . .
A 400 Spaces for independent tanks ........... , . .. .. . . . . . .. . .
A 500 Ballast tanks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
A 600 Fuel oil tanks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
13
13
13
13
13
13
13
B.
B
B
B
B
B
B
13
13
14
14
15
15
15
Cargo Piping System ...... .. ...•.... ... .•••. ........ ...•.. ..•••
100 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
200 Cargo pumps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
300 Arrangement and general design . . . . . . . . . .. . . . . . . . . . . .
400 Pressure indication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
500 Welding procedure tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
600 Testing .. .. .... .. .. . ... .. .. .... .. .. .. .... .. ... .... .. .... .. ..
C. Stripping of Cargo Tank and Cargo Lines . •• . . . .• . . . . . . . 15
C 100 General . . ... .. .. .... .. .. .. . ... .. .. ... . .. .. .... ... .... .. .. . . 15
D.
D
D
D
Discharge of Contaminated Water ..........••....••.......
100 Location of discharge outlet .. .... .. .. . ..... .... .. .....
200 Sizing of the discharge ·outlet . . .... .. ... ... .. .... .. ...
300 Cargo Record Book . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
15
15
15
15
E.
E
E
E
E
Stern
100
200
300
400
15
15
l5
16
16
SEC. 7
loading and unloading arrangements ••.•....... ..•
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Piping arrangement . . .. . . . . . . . . . . . . . . . . . . .. . . . . . . . .
Accommodation entrances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Electrical equipment ~ Fire fighting . . . . . . . . . . . . . . . . .
CARGO HEATING AND COOLING ARRANGEMENTS .••...........•..•.••................... 17
A. Cargo Heating and Cooling Arrangements .. ..••.. ....... 17
A 100 General . .. ... ... .. .. .. .... .. .. .... .. .. .. . . .. ... .... .. .... .. 17
A 200 Heating of cargoes with temperatures above 80°C 17
SEC. 8
MARKING OF TANKS, PIPES AND VALVES 18
B 300
B 400
A.
A
A
A
General .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. ...... .... .. .... .. ..
100 Marking plates ..... .. .... .. .... .. ...... .... .. ...... ......
200 Pipelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
300 Marking of independent tanks . . . . . . . . . . . . . . . . . . . . . . . . .
SEC. 9
18
18
18
18
GAS FREEING AND VENTING OF CARGO
TANKS ................................. " ................ 19
A. Gas Freeing of Cargo Tanks .. ...... ...... ...... ...... ...... . 19
A 100 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
B.
B
B
B
B
Tank
100
200
300
400
Venting Systems .........................................
General . . .. . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tank venting system, type c1 . .. .. .. .. .... .. .. .. .. .. ..
Tank venting system, type c2 . . . . . . . . . . . . . . . . . . . . . . . . .
Tank venting system, type c3 . . . . . . . . . . . . . . . . . . . . . . . . .
19
19
19
19
20
SEC. 10 MECHANICAL VENTILATION IN THE
CARGO AREA ................................... ...... 21
A. System Requirements ...... ...... ...... ...... ............. ..... 21
A 100 General .................................................... 21
A 200 Fans serving gas dangerous spaces . . . . . . . . . . . . . . . . . . . 21
B. Ventilation, type v2 ............................................ 22
B 100 Ventilation of cargo handling spaces ................. 22
B 200 Ventilation of spaces not normally entered .......... 22
C. Ventilation, type v3 ............................................ 22
C 100 Ventilation of cargo handling spaces ................. 22
C 200 Ventilation of spaces not normally entered . . . . . . . . . . 22
SEC. 11 FIRE PROTECTION AND EXTINCTION ..... 23
A. Documentation .. .. ...... .... ...... ...... .. . .. .. .. ... . ...... ...... 23
A 100 Plans and particulars . ..... .. .. .. .. .... .. .. .. .. ... . .. .... 23
B.
B
B
B
Fire Protection ............................................ .......
100 Construction . . . . . .. . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . .
200 Accommodation, service and control spaces . . . . . . . .
300 Fireman's outfit .........................................
23
23
23
24
C.
C
C
C
Fire Extinction ...................................................
100 Fire extinguishing in cargo area .......................
200 Deck fire extinguishing system in cargo area
300 Fire extinguishing in cargo pump rooms . . . . . . . . . . . .
24
24
24
24
B 500
Vapour detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Cargo temperature measurement . . . . . . . . . . . . . . . . . . . . . . 28
Hold leakage alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
SEC. 14 TESTS AFTER INSTALLATION ................. 29
A. General ..................................·................... ....... 29
A 100 Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
SEC. 15 ADDITIONAL REQUIREMENTS FOR CERTAIN CARGOES ...................................... 30
A.
A
A
A
A
A
A
A
A
A
A
A
A
General Requirements ...... ........ ........ ...... .............
100 Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
200 Materials ..................................................
300 Segregation of cargo from bunker tanks . . . . . . . . . . . . .
400 Separate piping systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
500 Cargo contamination . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
600 Cargoes with low ignition temperature and wide
flammability range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ... . . . . .
700 Inert gas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
800 Moisture control (Drying) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
900 Cargo pumps in tank . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1000 Cargoes not to be exposed to excessive heat . . . . . . . .
1100 Cargoes requiring heating . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1200 Cargo pump temperature sensors . . . . . . . . . . . . . . . . . . . . .
30
30
30
30
30
30
31
31
31
31
31
31
31
B. Additional Requirements for Certain Groups of
Cargoes ............................................................ 31
B 100 Acids ...................................................... 31
B 200 Cargoes which have a vapour pressure. greater than
1,015 bar at 37,8°C ..................................... 31
C.
C
C
C
C
Additional Requirements for Certain Chemicals ..... ...
100 Ammonium nitrate solution, 93 % or less ........ : . .
200 Carbon disulphide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
300 Diethyl ether . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . .. . . . . . . . . .
400 Hydrogen peroxide solutions of 60% but not over
C 500
31
31 ·
32
32
M% ....................................................... n
Hydrogen peroxide solutions over 8% but not over
W% ....................................................... D
C 600
C 700
Phosphorus, yellow or white . . . . . . . . . . . . . . . . . . . . . . . . . .
Propylene oxide and mixtures of ethylene oxide/
propylene oxide with ethylene oxide contt:nl of nut
more than 30% by weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
C 800 Sulphuric acid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
C 900 Sulphur liquid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
C 1000 Alkyl (C7 - C9) nitrates . .. .. . . .. .. .. .. .. ..
33
34
35
35
36
SEC. 12 ELECTRICAL INSTALLATIONS ............... 26
SEC. 16 INERT GAS PLANTS ................................ 37
A. General .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .... .. .... .. .... ...... 26
A 100 Application
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . .. . . . . . 26
A. General .... .. ...... .. ...... .. .... .. ...... .. .... .. .. . .... .. .... .. ... 37
A 100 Application ... .. ..... .. .... .. .. .... .. .. . . .. .. .... ...
37
37
A 200 Documentation .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . .
B. Electrical Installations in Cargo Area and Adjacent to
this Area .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. . .. .. .. . .... ...... ..
B 100 General
. .. .... ... ... ... ... .. .... .. ..... .. .... .. ...
B 200 Cargo tanks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
B 300 Cofferdams and other under deck spaces adjacent
to cargo tanks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
B 400 Cargo pump rooms . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . .
B 500 Enclosed or semi-enclosed spaces above cargo
tanks ......................................................
B 600 Hazardous areas on the open deck . . . . . . . . . . . . . . . . . . . .
Other spaces in the cargo area and in enclosed or
B 700
semi-enclosed spaces with direct access to the cargo
area .........................................................
B 800 Tweendeck spaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
26
26
26
26
26
B. Materials, Arrangement and Design .... ............ .......
B 100 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
B 200 Inert gas systems based on other means than combustion of hydrocarbons . . . .. . . . . . . . . . . . . . . . . . . .
B 300 Nitrogen inert gas systems fitted for other purposes
37
37
37
37
SEC. 17 PERSONNEL PROTECTION ...................... 38
27
27
A. General Requirements .. .......... ...... ........ ...... ......... 38
38
A 100 Protective equipment .. .... ... .. ... . .. .. .... .. .....
27
27
B. Safety Equipment ...... .. ...... .. ........ ........ ...... ......... 38
B 100 Safety equipment ......................................... 38
C. Signboards ............ .......... ...... .. ................... .... ... 27
C 100 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
C. Medical First-aid Equipment ........ ........ ...... ...... ..... 39
C 100 General ....... :.................
. ................... 39
SEC. 13 INSTRUMENTATION AND AUTOMATION
D. Decontamination Showers and Eye Washes .............. 39
D 100 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
39
28
A. General Requirements .. .... ...... .. .... .. .... .. .... .. .... .. . .. 28
A 100 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
APP. A
B. Alarm, Indicating and Recording Systems ............... 28
B 100 Cargo tank level gauging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
B 200 Overflow control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
A. General ...... .. . .. .. .. .. .. .. .. . . .. .. .. .. .. .. .... .. ...... . .. .. . .... . 40
A 100 List of cargoes .. .. ... .. .. ... . .. .. .. .. .. .. .... .. ..... .. .. 40
LIST OF CARGOES - TANKER FOR
CHEMICALS ........ ........ ........ .............. ..... 40
Rules for Ships , July 1999
Pt.5 Ch.4 Sec.1 - Page 1
SECTION 1
GENERAL REQUIREMENTS
Tanker for C ESP or
Tanker for C
Contents
A. Classification
A 100 Application
A 200
A 300
where C indicates the type of cargo for which the ship is
classified.
Class notations
Special features notations
The mandatory ship type and service notation
B. Definitions
B 100 Terms
Tanker for Chemicals ESP or
Tanker for C ESP
C. Documentation
C 100 General
is to be assigned to self propelled ships having integral tanks
intended for carriage of liquid chemicals in bulk in accordance with IM O's International Code for the Construction and
Equipment of Ships carrying Dangerous Chemicals in Bulk
(IBC Code), or Code for the Construction and Equipment
of Ships carrying Dangerous Chemicals in Bulk (BCH
Code), as applicable.
C 200
Plans and particulars
D. Tank Types
D 100 Integral tanks, general
D 200 Integral tanks, type a1
D 300 Integral tanks, type a2
D 400 Independent tanks, general
D 500 Independent tanks, type a3
D 600 Independent tanks, type a4
202
The requirements for ships with the class notation
Tanker for C ESP or
Tanker for C
E. Filling Limits for Cargo Tanks
General
E 100
will be considered in each case depending on the nature of
the cargo to be carried.
F. Signboards
F 100 References
A 300 Special features notations
G. Cargo Information
G 100 General
301 In the "Register of Vessels classed with DNV", a ship
with the class notation
Tanker for Chemicals ESP or
Tanker for Chemicals
H. Procedures and Arrangements Manual
H 100 General
may be given a series of letters and numbers describing
technical features of the ship as described in 302 to 310 (s~~
also Appendix A).
A. Classification
A 100
Application
101 The Rules in this chapter apply to ships intended for
carriage of liquid chemicals in bulk. The requirements are
to be regarded as supplementary to those given for assignment of main class.
102 Cargoes covered by the classification in accordance
with this chapter are listed in Appendix A, in the following
also referred to as the List of Cargoes. Non-hazardous cargoes except oil, are covered by the general requirements for
main class unless otherwise stated.
302 Ship type
The damage stability· standard in accordance with IMO's
International Chemical Code is identified by one of the following notations:
- Ship type 1
- Ship type 2
- Ship type 3
See Sec.3.
303 Tank type (a)
The tank types are identified as follows:
- a 1 : Integral tank, type a 1
103 The requirements of this chapter are considered to
meet the requirements of the International Code for the
Construction and Equipment of Ships Carrying Dangerous
Chemicals in Bulk.
- a2: Integral tank, type a2
- a3: Independent tank, type a3
- a4: Independent tank, type a4
104 Chemical tankers also intended for carriage of oil are
to comply with the Rules for Oil Carriers in Ch.3.
See D.
105 Chemical tankers of 20 000 tonnes deadweight and
above are to be fitted with an emergency towing arrangement in accordance with Pt.3 Ch. I Sec.8 E600.
A 200 Class notations
201 Ships built according to Sec. I to Sec.14 of this chapter may be assigned the class notation:
304 Cargo tank material (SS)
The notation ss indicates that the ship has one or more cargo
tanks made of stainless steel, solid or clad.
305 Liquid level gauging devices for cargo tanks (b)
The liquid level gauging devices are identified as follows:
- b 1 : open device
- b2: restricted device
:_ b3: closed device
- b4: indirect device
Tanker for Chemicals ESP or
Tanker for Chemicals.
Ships built for carriage of cargoes not requiring full compliance with Sec. I to Sec.14 may be assigned the class notation:
See Sec.13.
306 Tank vent system (c)
The tank vent systems are identified as follows:
DET NORSKE VERITAS
Rules for Ships , July 1999
Page 2 - Pt.5 Ch.4 Sec.1
- c 1 : open type vent system
- c2: tank vent system, ontlet 6 m above deck
- c3: tank vent system, outlet B/3, minimum 6 m above
deck, alternatively 3 m above deck and high velocity
valves.
See Sec.9.
307 Ventilation system (v)
Ventilation systems outside the cargo tanks are identified as
follows:
- v2: Ventilation system providing 30 air changes per hour
in cargo handling spaces
- v3: Ventilation system providing 45 air changes per hour
in cargo handling spaces.
See Sec.IO.
308 Overflow control (f)
The overflow control systems for cargo tanks are identified
as follows:
- f 1 : high level alarm
- f2: high-high level alarm.
See Sec.13.
309 Cargo stripping efficiency (str)
The efficiency of the cargo stripping arrangements of a
cargo tank and associated cargo piping is identified as follows:
-
str 0 .3: residue quantity not in excess of 0, 3 m 3
str 0. 1 : residue quantity not in excess of 0, I m3 .
See Sec.6.
310 Cofferdam (k)
The meaning of the letter k is:
-
103 Boiling point is the temperature at which a liquid exhibits a vapour pressure equal to the aQ:nospheric barometric
pressure.
104 Cargo area is that part of the vessel bounded by the
shell and deck plating which contains ..the cargo tanks, hold
spaces, cofferdams, and void spaces adjacent to cargo tanks
and cargo pump- and compressor rooms, and includes deck
areas over the full beam and length of the ship above the
foregoing.
105 Cargo control room is a space used in the control of
cargo handling operations.
106 Cargo service spaces are spaces within the cargo area
or spaces with openings leading into the cargo area, for
workshops, lockers and store rooms of more than 2 m2 in
area.
107 Cargo tank is the liquid tight shell designed to be the
primary container of the cargo.
108 Cofferdam is the isolating space between two adjacent
steel bulkheads or decks. The space may be a void space
or ballast space.
109 Design vapour pressure Pp is the maximum gauge
pressure at the top of the tank which has been used in the
design of the tank.
110
- a space within the cargo area which is not equipped with
approved arrangements to ensure that its atmosphere is
at all times maintained in a safe condition.
- an enclosed space outside the cargo area which contains
cargo piping.
111
k: bunker tanks are separated from cargo tanks by cofferdams.
See Sec.3.
311 Ship type and tank groups may be indicated in the
"Register of Vessels classed with DNV". This will for a
ship with cargo tanks of different technical standard be limited to the groups with the lowest and highest technical
standard, respectively.
Example:
A ship has lowest and highest technical standard in tank groups as follows:
Ship type 3, a1, b2, c2, v3, f1, str 0.3 and Ship type 2, a2, b3, c3,
v3, f2 str 0. 1. In the Register of ships the following will be given: Ship
type 2, a1 .2, b2.3, c2.3, v3, f 1 .2, str 0.3, str 0.1. Where more than
one number is given in connection with a letter, all first and second numbers
are to be combined, respectively.
Gas dangerous space is:
The following spaces are gas dangerous spaces:
-
cargo tanks
hold spaces
spaces adjacent to integral tanks for cargo
cargo pump rooms and cargo compressor rooms
spaces containing piping, vessels and equipment used in
connection with the cargo, including rooms for contaminated cargo hoses or other equipment used for loading,
discharging or transferring cargo
- enclosed or semi-enclosed spaces having a direct opening
into any gas dangerous space or zone.
112
Gas dangerous zones are:
- Zones on the open deck, or semi-enclosed spaces on the
deck, within a distance of:
B. Defmitions
-
-
-
B 100 Terms
-
101 Accommodation spaces are those used for public
spaces, corridors, lavatories, cabins, offices, hospital, cinemas, games and hobbies rooms, pantries containing no
cooking appliances and similar spaces. Public spaces are
those portions of the accommodation which are used as
halls, dining rooms, lounges and similar permanently enclosed spaces.
102 An air lock is an enclosed space for entrance between
an outdoor gas-dangerous zone on open deck and a gas-safe
space arranged to prevent ingress of gas to the gas-safe
space.
DET NORSKE
-
3 m from cargo tank openings, cargo pipe flanges,
cargo valves or openings to gas-dangerous spaces
containing gas sources, e.g. cargo pipe flanges, cargo
valves and cargo pumps
4,5 m from ventilation outlets from cargo pump rooms
5 m from cargo breathing valves
10 m measured horizontally from gas outlets from
cargo tanks during loading
the open deck 3 m forward and aft of the cargo tank,
but including deck above cofferdams and cargo pump
room, up to a height of 2,4 m above the deck.
Guidance note:
Gas outlets in this context is defined as any cargo opening used
as gas outlet in conjunction with loading, breathing and gas
freeing operations. For ships with length 90 m or less, somewhat
shorter distances may be accepted after consideration in each
separate case.
---e-n-d---o-f---G-u-i-d-a-n-c-e--n-o-t-e--
VERITAS
Rules for Ships , July 1999
Pt.5 Ch.4 Sec.1 - Page 3
113 Gas safe space is a space not being a gas dangerous
space.
114 Gas sefe zone is a zone not being a gas dangerous
zone.
115 Hold space is the space in which an independent cargo
tank is situated.
116 Independent means that a piping or venting system,
for example, is in no way connected to another system and
that there are no provisions available for the potential connection to other systems.
117 Liquid cargo is cargo with a vapour pressure below
2,75 bar absolute at 37,8°C.
118 For the purpose of propylene oxide reference temperature means the temperature corresponding to the vapour
pressure of the cargo at the set pressure of the cargo tank
pressure relief valve.
119 Separate means that a cargo piping system or cargo
vent system, for example, is not connected to another cargo
piping or cargo vent system. This separation may be
achieved by the use of design or operational methods. Operational methods should not be used within a cargo tank
and should consist of one of the following types:
-
removing spool pieces or valves and blanking the pipe
ends;
arrangement of two spectacle flanges in series with provisions fur detecting leakage into the pipe between the
two spectacle flanges.
C 200
201 A general arrangement is to be submitted for approval
giving location of:
·
-
-
containing cooking appliances, lockers and store rooms,
workshops other than thuise forming part of the machinery
spaces and similar spaces and trunks to such spaces.
121
The following decks are designated tank deck:
a deck or part of a deck which forms the top of a cargo
tank
- the part of a deck upon which are located cargo tanks,
cargo hatches, valves, pumps or other equipment intended for loading, discharging or transfer of the cargo
- that part of a deck within the cargo area which is located
lower than the top of a cargo tank
- deck or part of deck within the cargo area, which is located lower than 2,4 m above a deck as described above.
drawings of cargo tanks including information on nondestructive testing of welds and strength and tightness
testing of tanks
- drawings of support and staying of independent cargo
tanks
- a complete stress analysis is to be submitted for independent tanks type a4.
-
203 Plans of the following pumping and piping arrangements with accessories are to be submitted for approval:
-
-
122 Void space is an enclosed space in the cargo area external to a cargo containment system, not being a hold
space, ballast space, fuel oil tank, cargo pump or compressor room, or any space in normal use by personnel.
-
C 100
-
-
General
101 In 200 are specified the plans and particulars which
normally are to be submitted. The drawings are to show
clearly that the requirements are fulfilled.
-
102 Other plans, specifications or information may be required depending on the arrangement and the equipment
used in each separate case.
-
103 For general requirements related to documentation of
instrumentation and automation, including computer based
control and monitoring, see Pt.4 Ch.5 Sec. I.
diagrams of the cargo piping system including details
such as expansion elements and flange connections
bilge piping systems in pump rooms, cofferdams, pipe
tunnels and hold spaces
arrangement for drainage of cargo pumps and piping in
the pump room
drawing of cargo pump
arrangements for cargo tank . stripping and drainage/
stripping of cargo lines
diagram of tank washing
arrangement and location of undeiwater discharge
outlet(s)
emergency showers and eye wash with water supply and
arrangements to prevent freezing.
204 Plans showing the following equipment and systems
are to be submitted for approval:
-
C. Documentation
cargo hatches, tank cleaning hatches and any other
openings to the cargo tanks
··
doors, hatches and any other openings to pump rooms
and other gas-dangerous spaces
ventilating pipes and openings for cargo tanks, pump
rooms and other gas-dangerous spaces
doors, air locks, hatches, ventilating pipes and openings,
hinged scuttles which can be opened, and other openings
to gas safe spaces adjacent to the cargo area including
spaces in and below the forecastle
cargo pipes and gas return pipes over the deck with shore
connections including stem pipes for cargo discharge or
gas-freeing of cargo tanks.
202 Plans with the following particulars for the tanks are
to be submitted for approval:
-
120 Service spaces are spaces used for galleys, pantries
Plans and particulars
arrangement and capacity of air ducts, fans and their
motors in the cargo area, drawing and material specification of rotating parts and casing of the fans
drawings of portable ventilators and drawings showing
where and how these are to be fitted
arrangement for gas-freeing of cargo tanks and cargo
lines. Arrangement of cargo tank venting systems
drawings of gaslight bulkhead stuffing boxes
arrangement of cargo heating systems
arrangement of cargo cooling systems
arrangement of possible thermal insulation and specification of insulation materials
drawings showing details of design, attachment and location of anodes and other fittings in tanks and cofferdams.
Procedures and Arrangements Manual for the discharge
of noxious liquid substances.
205 Plans of electrical installations g1vmg the following
particulars are to be submitted for approval:
- area classification drawings
DET NORSKE VERITAS
Rules for Ships , July 1999
Page 4 - Pt.5 Ch.4 Sec.1
- drawings showing location of all electrical equipment in
gas dangerous area
- single line diagram for intrinsically safe circuits
- list of explosion protected equipment with reference to
drawings together with certificates.
206
For documentation regarding:
The following documentation is to be submitted for information:
- internal watertight integrity plan.
- fire protection, .see Sec.11,
- inert gas plants, see Sec .16.
207
- final damage stability calculations
Not required in case of approved limit curves, or if approved lightweight data are not less favourable than estimated lightweight data.
Detailed description of stability documentation is given in
Classification Note No. 20.1 'Stability Documentation Ships N ewbuildings' .
Damage stability
The following documentation is to be submitted for approval:
- preliminary damage stability calculations
208 For the instrumentation systems listed below, documentation is to be submitted according to Table C !. The
upper row of Table Cl refers to the documentation types
defined in Pt.4 Ch.5 Sec.1 C200.
Table Cl Requirements for documentation of instrumentation systems
020 030 040 050 060 070 080 090 100 110 115
For class notations Tanker for Chemicals and Tanker for C:
x
x
x
x
x
x
CAT
CTL
CTO
CVA
GDE
IEG
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
Instrumentation systems:
Cargo and vapour temperature control and mOnitoring system
Cargo tank level measurement system
Cargo tank overflow protection system
Cargo valves and pumps control and monitoring_ system
Cargo and vapour pressure control and monitoring system
Flammable gas detection system (permanent system only)
Inert gas control and monitoring system
CAT
CTL
CTO
CVA
CVP
GDE
IEG
T
120
x
x
x
x
x
x
130
140
x
x
x
x
x
x
150
160
170
180
190
200
x
x
x
x
x
x
Documentation types:
Functional description
System block diagrams (T)
System diagrams (P&!Ds, D&!Ds, etc.) (T)
Power supply arrangement (T)
Arrangement and layout (T)
Instrument and equipment list (T)
Data sheets with environmental specifications
Documentation related to software
Test program for application software at manufacturer
(T)
150 Test program for quay/sea trial (T)
030
040
050
070
080
100
110
120
140
Required also for type approved systems
mally not to be less than B/15. Drainage sumps will be
considered in each case.
D. Tank Types
D 100
Integral tanks, general
101 Integral tanks form a part of the ship's hull and are
influenced in the same manner and by the same loads which
stress the adjacent hull structure.
102 The design vapour pressure pois normally not to exceed 0,25 bar. If, however, the hull scantlings are increased
accordingly, Po may be increased to a higher value but less
thao 0,7 bar.
D 200
Integral tanks, type a 1
201 Integral tanks type a1 are built in such a way that the
cargo is separated from the sea by a single skin.
D 300
Integral tanks, type a2
301 Integral tanks type a2 are built in such a way that the
cargo is separated from the sea by a double skin.
302 Minimum clearance is to be 760 mm between the tank
and the ship's shell.
303 Minimum distance between the ship's outer skin and
the tank bottom is equivalent to the Rule height for the
girder in dry cargo ships (see Pt.3 Ch.1 Sec.6), but is nor-
D 400
Independent tanks, general
401 Independent tanks do not form a part of the ship's
hull. An independent tank is built and installed in such a way
that the influence on the tank by the hull's deformation and
stresses is minimised. An independent tank does not contribute to the hull strength. An independent tank is normally
to have longitudinally rigid fixture to the ship in only one
transverse plane. Distance between tanks and hull: See Sec.4
AlOO.
D 500
Independent tanks, type a3
501 Independent tanks type a3 are self-supporting and
constructed primarily of. plane surfaces where the internal
loads are carried mainly in bending of plates and stiffeners.
The design vapour pressure Po is not to exceed 0,7 bar.
D 600
Independent tanks, type a4
601 Independent tanks type a4 tanks are self-supporting
pressure vessels with a design vapour pressure higher than
0, 7 bar and where the internal pressure is carried mainly as
tensile membrane stresses in the tank skin (cylinders,
spheres, etc.).
DET NORSKE VERITAS
Rules for Ships , July 1999
Pt.5 Ch.4 Sec.1 - Page 5
G. Cargo fufonnation
E. Filling Limits for Cargo Tanks
E 100
General
101 Tanks for liquid cargo are to be so loaded as to avoid
the tank becoming liquid full during the voyage taking into
consideration the highest temperatnre which the cargo may
reach.
F. Signboards
F 100
101
-
-
References
Signboards are required by the Rules in:
Sec.3 DIOS regarding plates bolted to boundaries facing
the cargo area and which can be opened for removal of
machinery. These are to be fitted with signboard giving
instructions that the plates are to be kept closed unless
ship is gas-free.
Sec. 8 regarding marking plates for independent tanks.
Sec.IO A109 regarding pumps and compressors which
are not to be started before the ventilation system in the
electric motor room has been in operation for 15 minutes.
Sec.12 ClOl regarding opening of a lighting fitting.
Before opening, its supply circuit is to be disconnected.
Sec.12 C102 regarding ventilation to be in operation before lighting is tnmed on.
Sec.12 C103 regarding portable electrical equipment
supplied by flexible cables. This equipment is not to be
used in areas where there is gas danger.
Sec.12 C!04 regarding welding apparatns. These are not
to be used unless the working space and adjacent spaces
are gas-free.
G 100 General
101 A copy of International Code for Construction and
Equipment of Ships Carrying Dangeruus Chemicals in Bulk,
provisions of this Code, is to be on bOard every ship covered
by this Code.
102 Information is to be on board, and available to all
concerned, giving the necessary data for the safe carriage
of the cargo. Such informab.on should include a cargo
stowage plan to be kept in an accessible place, indicating all
cargo on board, including each dangerous chemical earned:
I) a full description of the physical and chemical properties,
including reactivity necessary for the safe containment
of the cargo,
2) action to be taken in the event of spills or leaks,
3) countermeasures against accidental personal contact,
4) fire-fighting procedures and fire-fighting media,
5) procedures for cargo transfer, tank cleaning, gas-freeing
and ballasting,
6) for those cargoes required to be stabilised or inhibited, the
cargo should be refused if the certificate required by
these paragraphs, is not supplied.
H. Procedures and Arrangements Manual
H 100 General
101 Each ship is to be provided with a Procedures and
Arrangements Manual developed for the ship in accordance
with the provisions of the Standards for Procedures and Arrangements and approved by the Society.
102 Each ship should be fitted with equipment and arrangements identified in its Procedures and Arrangements
Manual.
DEr NORSKE VERITAS
Rules for Ships , July 1999
Page 6 - Pt.5 Ch.4 Sec.2
SECTION 2
MATERIALS
Contents
B. Hull
A. General
A 100 Selection and testing
B 100 General
101 Hull materials may generally be selected in accordance with ordinary practice as given in Pt.3 Ch.I Sec.2.
B. Hull
B 100 General
C. Cargo Tanks
C. Cargo Tanks
C 100
General
C 100 General
101 Materials for integral tanks and independent tanks
type a3 may generally be selected in accorrumce with ordinary practice as given in Pt.3 Ch. I Sec.2 for hull materials.
Materials for independent tanks type a4 (pressure tanks)
shall be pressure vessel steel in accordance with Pt.2 Ch.2
Sec.2.
D. Cargo Piping
D 100 General
D 200 Documentation of material quality and testing
A. General
A 100
101
D. Cargo Piping
Selection and testing
Detailed requirement for materials are given in Pt.2.
102 For materials other than mild steel, the Society will
stipulate requirements as to quality and properties in each
case.
103 Where stainless steel in cargo tanks/cargo piping and
heating coils is required for the carriage of particular cargoes, the content of molybdenum in the material is not to
be less than 2,5 % if type NV 316 L or NV 316 LN is
specified.
104 Clad steel will be accepted if the requirements of Pt. 2
Ch.2 Sec.3 and Pt.2 Ch.3 Sec.4 are fulfilled. Acceptance
of other linings necessary to protect the structural material
will be specially considered.
105 Requirements for welding procedure tests and production weld tests are given in Sec.5 and Sec.6.
106 For certain cargoes as specified in Sec.15 or in the
List of Cargoes, special requirements for materials apply.
D 100 General
101 Steel is the normal material of construction for cargo
pipes. Other materials may be accepted for non-flammable
cl:iemicals. Grey cast-iron is not accepted as material of
construction in cargo piping on ships with class notation
Tanker for Chemicals.
102 Bodies of valves and fittings, and pump housings are
to be of cast steel, nodular cast rron Grade NVl or NV2 or
other approved material (see Pt.2 Ch.2).
103 Cargo steel pipes are to be tested according to relevant
parts of Pt.2 Ch.2 S"ec.4.
104 Tank vent piping for tanks made of or protected by
corrosion-resistant material is to be made of or protected by
similar material.
D 200 Docmnentation of material quality and testing
201 The materials used in cargo piping systems are to be
furnished with one of the following types of documentation
according to Table D 1.
Det Norske Veritas' Certificate, Works' Certificate, and
Test Report are defined in Pt.I Ch. I Sec.3.
Table Dl Documentation of material quality and testing
Type
Material
Piping
system
Nominal
diameter
mm
Pressure
Open ended
Cargo pipes and heating coils
NV
certificate
Type of documentation
Works
Test
certificate
report
x
x
Flanges and bolts
Bodies of valves and fittings,
pump housings, source
materials of steel expansion
bellows, other pressure
containing components not
considered as pressure vessels
x
Steel, nodular
cast-iron
grade 1 and 2
Copper
alloys
Pressure
>100
$100
x
Pressure
>50
x
Pressure
$50
Pressure
x
Open eitded
x
Open ended
DET NORSKE VERITAS
x
x
Rules for Ships , July 1999
Pt.5 Ch.4 Sec.3 - Page 7
SECTION 3
SIDP ARRANGEMENT AND DAMAGE STABILITY
for
Contents
conditions at sea, inb) The loading computer, intended
cludes approved software functions for damage stability.
A. Damage Stability
A JOO General
A 200
Reference is made to Pt.6 Ch.9 Sec. I and Sec.2.
Requirements for watertight integrity
A 200 Requirements for watertight integrity
201 As far as practicable, tunnels, ducts or pipes which
B. Cargo Tank Location
B JOO General
C. Location and Separation of Spaces
C I 00 General
D. Arrangement of Entrances and Other Openings
D 100
D 200
D 300
Accommodation and gas safe spaces
Gas dangerous spaces and cargo tanks
Access to and within cargo tanks, void spaces and other
spaces in the cargo area
E, Guard Rails and Bulwarks
E 100
Arrangement
may cause progressive flooding in case of damage, are to
be avoided in the damage penetration zone. If this is not
possible, arrangements are to be made to prev:ent progressive flooding to volumes assumed intact. Alternatively, these
volumes are to be assumed flooded in the stability calculations.
202 The scantlings of tunnels, ducts, pipes, doors, staircases, bulkheads and decks, forming watertight boundaries,
are to be adequate to withstand pressure heights corresponding to the deepest equilibrium waterline in damaged
condition.
F. Cargo Pump Rooms, Cofferdams and Pipe Tunnels
F I 00 General
G. Diesel Engines Driving Emergency Fire Pumps, etc.
G I 00 General
H. Chain Locker and Windlass
H I 00 General
I. Anodes, Washing Machines and Other Fittings in Tanks and
Cofferdams
JOO General
J. Slop Tanks
J
100
Arrangement
K. Stowage of Cargo Samples
K 100 General
K 200 Arrangement
B. Cargo Tank Location
B 100 General
101 Tanks intended for carriage of cargoes for which Ship
type 1 is required are to be located at a minimum distance
from the ship's side shell plating of B/5 or 11,5 m, whichever is less, measured inboard from the ship's side at right
angle to the centre line at the level of the summer load line,
and at a vertical distance from the moulded line of the bottom shell plating at centre line not less than B/15 or 6 m,
whichever is less but nowhere less than 760 mm from the
shell plating.
102 Tanks intended for carriage of cargoes for which Ship
type 2 is required are to be located at a vertical distance
from the moulded line of the bottom shell plating at centreline of B/15 or 6 m, whichever is less, and nowhere less
than 760 mm from the shell plating.
A. Damage Stability
A 100 General
101 The ship is to meet the damage stability requirements
of chapter 2. 8 of the International Code for the Construction
and Equipment of Ships Carrying Dangerous Chemicals in
Bulle either for
103 For Ship type 3, there are no restrictions in respect
of cargo tank location.
C. Location and Separation of Spaces
C 100
- Ship type 1 ,
- Ship type 2 or
- Ship type 3.
General
101 A cofferdam is to be provided at aft end of cargo area.
Spaces which may be approved as cofferdams, see F!OO.
102 The ship is to be supplied with a loading and stability
information booklet. This booklet is to contain details of
typical service and ballast conditions, provisions for evaluating other conditions of loading and a summary of the
ship's survival capabilities. In addition, the booklet is to
contain sufficient information to enable the master to load
and operate the ship in a safe and seaworthy manner.
102 Fuel oil bunker tanks are not to be situated within the
cargo area. Such tanks may, however, be situated at forward
and aft end of cargo area instead of cofferdams.
The fuel oil tanks are not to extend beneath cargo tanks.
Ships which do not have bunker tanks arranged adjacent to
cargo tanks, will get the letter k added to the series ofletters
and numbers given in the "Register of Vessels classed with
DNV".
103 Maximum allowable VCG curve(s), for the purpose
of checking damage stability compliance, are to be included
in the stability manual, unless one of the following alternatives are preferred:
103 Machinery of category A and boiler spaces are to be
positioned aft of the cargo area, but not necessarily aft of
fuel oil tanks.
a) The loading manual includes, in approved form, all the
conditions intended to be used.
Where deemed necessary, machinery spaces other than those
of category A may be permitted forward of the cargo area.
DET NORSKE VERITAS
4
Rules for Ships , July 1999
Page 8 - Pt.5 Ch.4 Sec.3
104 The lower portion of the cargo pump room may be
recessed into machinery and boiler spaces to accommodate
pumps, provided the deck head of the recess is in general
not more than one-third of the moulded depth above the
keel, except that in the case of ships of not more than 25 000
tons deadweight, where it can be demonstrated that for reasons of. access and satisfactory piping arrangements this is
impracticable, a recess in excess of sµch height may be
permitted, though not exceeding one half of the moulded
depth above the keel.
105 Accommodation spaces and service spaces are to be
positioned outside the cargo area, but not necessarily aft of
fuel oil tanks.
Accommodation spaces are not to be situated directly onto
fuel oil bunker tanks adjacent to cargo tanks.
106 Where the fitting of a navigation position above the
cargo area is shown to be necessary, it is to be for navigation purposes only, and it is to be separated from the cargo
tank deck by means of an open space with a height of at least
2 metres.
107 Deck spills are to be kept away from accommodation
and service areas through suitable precautionary means,
such as a permanent, continuous coaming of a suitable
height extending from side to side.
D. Arrangement of Entrances and Other
Openings
D 100
105 Bolted plates for removal of machinery may be fitted
in boundaries facing the cargo area. S_uch plates are to be
insulated to A-60 class (see Sec.11). Signboards giving instruction that the plates are to be kept closed unless the ship
is gas-free, are to be posted on board.
106 Access to gas safe spaces withill the cargo area are
normally to be arranged from a gas safe zone. An air lock
may, however, be permitted between a gas dangerous zone
on the open deck and a gas safe space. The entrance of the
air lock shall in that case comply with 107.
107 Entrance through air locks to gas safe spaces is to be
arranged at a horizontal distance of at least 3 m from any
opening to a gas dangerous space containing gas sources,
such as valves, hose connection or pump used with the
cargo.
108 Air locks are to comply with the following requirements:
-
air locks are to be enclosed by gaslight steel bulkheads
with two substantially gas tight self-closing doors spaced
at least 1,5 m and not more than 2,5 m apart. The door
sill height is to comply with requirements given in Pt.3
Ch. I Sec.11 B, but is not to be less than 300 mm.
- air locks are to have a simple geometrical form. They are
to provide free and easy ~assage, and are to have a deck
area not less than 1,5 m . Air locks are not to be used
for other purposes, for instance as store rooms.
- an alarm (acoustic and visual) is to be released on both
sides of the air lock to indicate if more than one door
have been moved from the closed position.
- air locks are to have effective ventilation. Ventilation requirements, see Sec.10.
Accommodation and gas safe spaces
101 For superstructures and deckhouses containing accommodation and service spaces, the following applies:
- doors, port lights of opening type and other openings to
accommodation and service spaces or to other roonis
with access to such spaces are to be located outside gasdangerous zones.
102 Access through doors, gaslight or otherwise, is not
permitted from a gas-safe space to a gas-dangerous space
except for access to service spaces forward of the cargo area
through air locks when accommodation spaces are aft.
103 Entrances, air inlets and openings to accommodation
and service and control station spaces are not to face the
cargo area. They are to be located on the end bulkhead not
facing the cargo area and/or on the outboard side of the
house at a distance of at least L/25 but not less than 3 ,05
m from the end of the house facing the cargo area. This
distance, however, need not exceed 5 m. Port lights facing
the cargo area and on the sides of the houses within the
distance mentioned above are to be of the fixed (non-opening) type. Wheelhouse windows may be non-fixed and
wheelhouse doors may be located within the above limits so
long as they are so designed that a rapid and efficient gas
and vapour tightening of the wheelhouse can be ensured.
Portlights in the first tier on the main deck are to be fitted
with inside covers of steel or equivalent material.
104 Cargo control rooms, stores and other spaces not
covered by 103 but located within accommodation, service
and control stations spaces, may be permitted to have doors
facing the cargo area. Where such doors are fitted, the
spaces are not to have access to the spaces covered by 103
and the bouodaries of the spaces are to be insulated to A-QO
class (see Sec.11 ).
D 200
201
Gas dangerous spaces and cargo tanks
Pump room entrances are to be from open deck.
202 Doors to gas dangerous spaces, situated completely
upon the open deck, are to have as low a sill height as possible.
203 For cargo tanks, no hatches, openings for ventilation.
ullage plugs or inspection openings are to be arranged in
enclosed compartments.
D 300 Access to and within cargo tanks, void spaces
and other spaces in the cargo area
301 Arrangements for void spaces, cargo tanks and other
spaces in the cargo area are to be such as to ensure adequate
access for complete inspection.
302 Access to cofferdams, ballast tanks, cargo tanks and
other spaces in the cargo area is to be directed from the open
deck. Access to double bottom spaces may be through a
cargo pump room, pump room, deep cofferdam, pipe tunnel
or similar compartments, subject to consideration of ventilation aspects.
303 For access through horizontal openings, hatches or
manholes, the dimensions are to be sufficient to allow a
person wearing a breathing apparatus to ascend or descend
without obstruction and also to provide a clear opening to
facilitate the hoisting of an injured person from bottom of
the space. The minimum clear opening is to be not less than
600 mm x 600 mm.
304 For access through vertical openings, or manholes
providing passage through the length and breadth of the
space, the minimum clear opening is to be not less than 600
mm x 800 mm at a height of not more than 600 mm from
the bottom shell plating unless gratings or other footholds
are provided.
DET NORSKE VERITAS
Rules for Ships , July 1999
Pt.5 Ch.4 Sec.3 - Page 9
305 Smaller dimensions than specified in 303 and 304 may
be approved in special circumstances.
E. Guard Rails and Bulwarks
E 100 Arrangement
101 On tank deck open guard rails are normally to be fitted. Plate bulwarks, with a 230 mm high continuous opening
at lower edge, may be accepted upon consideration of the
deck arrangement and probable gas accumulation.
I. Anodes, Washing Machines and Other Fittings in Tanks and Cofferdams
I 100 General
101 Anodes, washing machines and- other permanently attached equipment units in tanks and cofferdams are to be
securely fastened to the structure. The units and their supports are to be able to withstand sloshing in the tanks and
vibratory loads as well as other loads which may be imposed
in service.
Guidance note:
F. Cargo Pump Rooms, Cofferdams and Pipe
Tunnels
When selecting construction materials in permanently attached
equipment units in tanks and cofferdams, due consideration
ought to be given to the contact spark-producing properties.
F 100 General
101 Arrangements are to be installed to deal with possible
---e-n-d---o-f---G-u-i-d-a-n-c-e---n-o-t-e---
leakage from cargo pumps and valves in the pump room.
102 Cofferdams are to be of sufficient size for easy access
to all parts, and they are to cover the entire adjacent tank
bulkheads with a mmimum distance between bulkheads of
600 mm.
103 Pump rooms and ballast tanks are accepted as cofferdams. See also C102.
104 Spaces surrounding independent tanks, are normally
accepted as cofferdams.
105 Pipe tunnels are to have ample space for inspection
of the pipes, and the l'.ipes are to be situated as high as
possible above the ship s bottom.
106 On ships with integral tanks, no connection between
J. Slop Tanks
J 100 Arrangement
101 One or more slop tanks for storage of contaminated
bilge water from cargo area and tank washings are to be
provided. Means are to be provided to transfer contaminated water to on-shore slop tanks. Cargo tanks may be
accepted as slop tanks.
K. Stowage of Cargo Samples
a pipe tunnel and the engine room, either by pipes or man-
holes, will be accepted.
K 100 General
101 Samples which have to be kept on board should be
G. Diesel Engines Driving Emergency Fire
Pumps, etc.
G 100 General
101 Diesel engines driving emergency fire pumps, etc.,
are to be installed in a gas safe space.
102 The exhaust pipe of the diesel engine is to have an
effective spark arrester and is to be led out to the atmosphere
at a safe distance from areas of gas danger.
stowed in a designated space situated in the cargo area or,
exceptionally, elsewhere subject to special approval.
K 200 Arrangement
201 The stowage space should be:
a) cell-divided in order to avoid shifting of the bottles at sea,
b) made of material fully resistant to the different liquids
intended to be stowed, and
c) equipped with adequate ventilation arrangements.
H. Chain Locker and Windlass
H 100 General
101 The chain locker is to be arranged as a gas safe space.
Windlass and chain pipes are to be situated in a gas safe
zone.
202 Samples which react with each other dangerously,
should not be stowed close to each other.
203 Samples should not be retained on board longer than
necessary.
DET NORSKE VERITAS
Rules for Ships , July 1999
Page 10 - Pt.5 Ch.4 Sec.4
SECTION 4
ARRANGEMENT IN HOLD SPACES
Contents
Drainage sumps will be considered in each case.
A. General
e'.
A 100
Distance between tanks and hull
B. Gas Pressure Relief Devices
B. Gas Pressure Relief Devices
B 100 Pressure/vacuum relief valves
B 100 Pressure/vacuum relief valves
C. Sealing around Tanks
C 100
101 If spaces for independent tanks can be completely
closed, these spaces are to be equipped with pressure and
vacuum relief valves. The number and size of these valves
are to be decided depending on size and shape of the spaces.
General
D. Earth Connections
D 100 General
102 The valves are normally to open at a pressure of 0, 15
bar above and below atmospheric pressure.
A. General
A 100
Distance between tanks and hull
101 The distance between independent tanks and the dislance between such tanks and parts of the hull is to be sufficient to give reasonable space for inspection and
maintenance.
Guidance note:
The free distance between independent tanks and the inner edge
of ordinary frames should not be less than 500 mm. The free
space between tanks and web frames should be not less than 50
mm.
The free distance between independent tanks and the inner bottom should generally be not less than 400 mm.
C. Sealing around Tanks
C 100
General
101 Efficient sealing is to be provided where independent
tanks extend above the upper deck. The sealing material is
to be such that it will not deteriorate, even at considerable
movements between the tanks and the deck.
The sealing is to be able to withstand all temperatures and
environmental hazards which may be expected.
---e-n-d---o-f---G-u-i-d-a-n-c-e--n-o-t-e---
102
The distance between the ship's shell and an inde-
D. Earth Connections
pendent tank is nowhere to be less than· 760 mm.
103 The vertical distance between independent tanks and
the outer bottom is not to be less than the Rule height for the
centre girder in dry cargo ships, see Pt.3 Ch. I Sec.6, and
is normally not to be less than B/15.
D 100
General
101 At least two effective earth connections between each
tank and the hull are to be arranged.
DET NORSKE VERITAS
Rules for Ships , July 1999
Pt.5 Ch.4 Sec.5 - Page 11
SECTION 5
SCANTLINGS AND TESTING OF CARGO TANKS
with Ship type 3 notation, non-destructive testing is to be
as for oil carriers.
Contents
A. Scantlings of Cargo Tanks
A 100
A 200
Integral tanks
Independent tanks
B. Requirements for Testing of Welds and Non-Destructive
Testing
B 100
B 200
B 300
General
Welding procedure tests
Production weld tests
102 The required minimum number of radiographs are
based on a film length not less than 40 cm. Most of the films
are to be placed at weld crossings and highly stressed connections.
Radiographs are at least to meet the requirements to mark 4
(blue) according to IIW Collection of Reference Radiographs
of Welds in Steel.
C. Testing of Tanks
C 100
C 200
Integral tanks
Independent tanks
B 200
Welding procedure tests
201 Welding procedure tests are required for independent
tanks.
A. Scantlings of Cargo Tanks
202 The requirements for welding procedure testing are
as given in Pt.2 Ch.3 Sec.2 except that:
A 100 Integral tanks
101 Scantlings for integral tanks are to be in accordance
with Pt.3.
The principles for direct strength calculations given in Ch.3
Sec.2 shall be followed.
For materials other than mild steel, the minimum thickness
requirements will be considered in each case.
A 200 Independent tanks
201 Scantlings of independent tanks, constructed mainly
of plane surfaces, are to be in accordance with relevant requirements given in Pt. 3 Ch. I.
Tanks of pressure vessel configuration type (cylinders,
spheres etc.) are to be in accordance with the requirements
given in Ch.5 Sec.5.
B. Requirements for Testing of Welds and
Non-Destructive Testing
B 100 General
101 Non-destructive testing of tank shell welds for chemical tankers with Ship type 1 and Ship type 2 notations are
to be carried out as given in Table Bl. For chemical tankers
- Charpy tests are not required for austenitic stainless steel.
- For C-Mn steel Charpy tests shall be carried out at the
same temperature as specified for the base material. If
Charpy tests are not required for the base material, the
Charpy test shall be carried out at room temperature.
203 Special welding procedure tests will not be required
if previous welding procedure for similar material, thicknesses and welding positions are satisfactorily documented.
B 300
Production weld tests
301 Production weld tests are required for independent
tanks type a4 (pressure tanks) and independent tanks a3
(atmospheric), if of pressure vessel configuration i.e. cylindrical, spherical.
302 The requirements for production weld testing are as
given for independent cargo tanks type C in Ch.5 Sec.5 except that:
- Charpy tests are not required for austenitic stainless steel.
- For C-Mn steel Charpy test shall be carried out at the
same temperature as specified for the base material. If
Charpy tests are not required for the base material, the
Charpy tests shall be carried out at room temperature.
Table Bl
Non-destructive testing
a1
a2
Butt welds. l)
Min. number of radiographs.
(L = ship's length in m.
Im = total length of welds in m)
n = 50 + 1,25 (L2/100)
n = (U20)
a3
20%
Tank type
Integral tanks 2)
Independent tank
Welds other than butt welds.
Surface crack detection.
% of total weld length
>)
j)
10%
Nozzles 100%
10%
Longitudinal welds: 100 %
Transverse welds: 10%
Nozzles 100%
I) Butt welds of face plates and web plates of girders, stiffening rings etc. are to be radiographed as considered necessary.
2) Guidance: Where double continuous fillet weld is used full penetration weld at some points is recommended in order to reduce the possibility of
leakage along the roof of the fillet weld.
3) The extent of surface crack detection will be decided on the basis of the visual inspection of the boundary welds. Normally this will not exceed 5%
of the total weld length.
a4
DET NORSKE VERITAS
Rules for Ships , July 1999
Page 12 - Pt.5 Ch.4 Sec.5
In addition the cargo tanks are to be subjected to a hydraulic
test so that all the tank boundaries are. tested from at least
C. Testing of Tanks
C 100
one side.
Integral tanks
101 Pressure testing of integral tanks is to be carried out
in accordance with Pt.3 with the following additional requirement:
C 200 Independent tanks
201 Pressure testing of independenf tanks type a3 are
normally to be carried out as specified for integral tanks in
All cargo tanks are to be subjected to a tightness test. Tank
boundary welds are not to be painted before the tightness
test is carried out.
101.
Independent tanks type a4 are normally to be hydraulically
tested to 1,5 times the design pressure.
DET NORSKE VERITAS
Rules for Ships, July 1999
Pt.5 Ch.4 Sec.6 - Page 13
SECTION 6
PIPING SYSTEMS IN CARGO AREA
Contents
A.
A
A
A
A
A 400
Pumping and Piping Systems for Bilge, Ballast and Fuel Oil
100
200
300
400
A 500
A 600
General
Cargo pump rooms
Cofferdams and pipe tunnels
Spaces for independent tanks
Ballast tanks
Fuel oil tanks
100
200
300
400
500
B 600
403 Cargo pumps may be accepted for bilge· system purposes to spaces for independent tanks when the pumps are
so arranged that they effectively can be used for this purpose. The necessary pipe connection between cargo pumps
and the space around the tanks are not to penetrate any part
of tank walls situated in closed spaces or lower than the liquid level to maximum filling of the tank. Pipe connections
are to be so arranged that cargo cannot be pumped into the
spaces due to incorrect operation of valves etc.
General
Cargo pumps .
Arrangement and general design
Pressure indication
Welding procedure tests
Testing
C. Stripping of Cargo Tank and Cargo Lines
C I 00
General
A 500 Ballast tanks
D. Discharge of Contaminated Water
D 100
D 200
D 300
501 Filling or discharge of tanks within cargo area with
ballast is to be carried out from the cargo pump room or a
similar gas-dangerous space except as permitted by 502.
Location of discharge outlet
Sizing of the discharge outlet
Cargo Record Book
502 Pumps, ballast lines, vent lines and other similar
equipment serving permanent ballast tanks should be independent of similar equipment serving cargo tanks and from
cargo tanks themselves. Discharge arrangements for permanent ballast tanks sited immediately adjacent to cargo tanks
should be outside engine room and accommodation spaces.
E. Stern loading and unloading arrangements
E
E
E
E
100
200
300
400
401 Spaces for independent tanks are to be connected to a
bilge system.
402 The capacity is normally to be such that the requirements given in Pt.4 Ch.1 Sec.4 are complied with. However, these requirements may be reduced by 50%, when the
volume of the tanks is more than 75 % of the total volume
of the space.
B. Cargo Piping System
B
B
B
B
B
Spaces for independent tanks
General
Piping arrangement
Accommodation entrances
Electrical equipment - Fire fighting
Filling arrangements may be in the engine room provided
A. Pumping and Piping Systems for Bilge, Ballast and Fuel Oil
A 100
General
that such arrangements ensure filling from tank deck level
and non-return valves are fitted.
503 Filling of ballast in cargo tanks may be arranged from
deck level by pumps serving permanent ballast tanks, provided that the filling line has no permanent connection to
cargo tanks or piping and that non-return valves are fitted.
101 There is to be no connection between the piping systems serving the area limited by the aft bulkhead of the
cofferdam aft of the cargo area and the forward bulkhead
of the cofferdam forward of the cargo area and the systems
in the remainder of the ship except as specially permitted
by this section.
504 Filling lines to permanent ballast tanks are to be so
arranged that the formation of static electricity is reduced,
e.g. by reducing the free fall into the tank to a minimum.
102 The steam temperature in steam pipes in the cargo
area is not to exceed 220°C.
Guidance ·note:
Seawater suction should be arranged at the opposite side from
the discharge of ballast water from cargo tanks.
A 200
Cargo pmnp rooms
---e- n-d-~-o-f---G-u-i-d-a-n-c-e--- n-o-t-e---
201 Two possibilities for drainage are to be provided, one
of which is to be operable from open deck. One ejector with
two sources of supply will be accepted.
202 Bilge pnmp/ejector independent of the cargo pumps
is to be fitted for drainage of the cargo pump rooms.
203 The bilge pipes in a cargo pump room are not to be
led into the engine room.
A 300
505 Suction for seawater to permanent ballast tanks is not
to be arranged in the same sea chest as used for discharge
of ballast water froIIJ cargo tanks, see also B305.
506 Lines from engine room to ballast tanks forward of
cargo area are to be carried outside cargo tanks.
A 600
Fuel oil tanks
601 Fuel oil bunker tanks situated at forward or aft end
of the cargo area may be connected directly to pumps in the
engine room. The pipes are not to pass through cargo tanks.
Cofferdams and pipe tunnels
301 Cofferdams and pipe tunnels are to be provided with
sounding pipes and with air pipes led to the atmosphere.
302 Cofferdams and pipe tunnels are to be provided with
bilge suctions.
B. Cargo Piping System
B 100
General
101 A complete system of piping and pumps is to be provided for the cargo tanks.
DET NORSKE VERITAS
Rules for Ships , July 1999
Page 14 - Pt.5 Ch.4 Sec.6
This system is to be entirely separate from all other piping
systems on board.
Exemption, see Sec. 9 regarding pipes for ventilation or
inerting purposes.
102 The cargo piping system is to be dimensioned according to Pt.4 Ch. I Sec.6. The design pressure p is the
maximum working pressure to which the system may be
subjected. Due consideration is to be given to possible liquid
hammer in connection with quick-closing valves.
The design pressure for cargo piping is as a minimum to be
taken as I 0 bar.
103 The cargo piping is to be joined by butt welding with
a minimum of flange connections.
- Flange types A and B will be accepted in piping systems
with design pressure p> 16 bar. See Fig.4. Pt.4 Ch.I
Sec.6.
- Flange types A, B and C will be accepted in piping systems with design pressure p~16 bar.
- Flange connections in piping systems constructed of materials other than mild steel, will be specially considered.
B 200
Cargo pwnps
302 Valves or branch pieces, which connect the cargo
pipeline's shore connection on deck, and cargo piping are
to be supported with due regard to load stresses.
303 Expansion elements are to be provided in the cargo
piping as necessary. The elements are nof to be of the sliding
type.
304 Filling lines to cargo tanks are to be so arranged that
the formation of static electricity is reduced, e.g. by reducing the free fall into the tank to a minimum.
305 The discharge of ballast water from cargo tanks is to
be arranged in such a way as to prevent the ballast water
from being drawn into sea suctions for other pipe systems,
e.g. cooling water systems for machinery.
Guidance note:
Ballast water discharges which are located in accordance with
MARPOL 73/78, Annex I, Reg. 15 are regarded as satisfactory
with respect to the requirements in 305.
---e-n-d---o-f---G-u-i-d-a-n-c-e---n-o-t-e--
306 Cargo piping systems are not to be installed under
deck between the outboard side of the cargo containment
spaces and the skin of the ship, unless clearances required
in Sec. I D are maintained. This requirement does not apply
when damage to the pipe would not cause release of cargo.
201 At least two independently driven cargo pumps are to
be connected to the system.
307 Means for drainage of the cargo lines are to be provided.
202 In tankers where cargo tanks are equipped with independent pumps (e.g. deep well pumps) and where the size
of the tanks is small compared to the total capacity of the
ship, the installation of one pump per tank may be approved.
Satisfactory facilities are to be provided for emptying the
308 Runs of cargo piping, located below the weather deck,
may run from the tank they serve and penetrate tank bulk heads or boundaries common to adjacent (longitudinally or
transversely) cargo tanks, ballast tanks or empty tanks or
pump rooms, provided that inside the tank they serve, the
runs are fitted with a stop valve operable from the weather
deck.
tanks in an emergency.
203 Hydraulically powered pumps, submerged in cargo
tanks (e.g. deep well pumps), are to be arranged with double
barriers, preventing the hydraulic system serving the pumps
from being directly exposed to the cargo. The double barrier
is to be arranged for detection and drainage of possible
cargo leakages.
As an exception, where a cargo tank is adjacent to a pump
room the stop valve operable from the weather deck may
be situated on the tank bulkhead on the pump room side,
provided an additional valve is fitted between the bulkhead
valve and the cargo pump.
204 Where machinery in cargo pump room or other gas
dangerous rooms are driven by shafting passing into the
pump room through bulkheads or deck plating, gaslight
glands are to be fitted. The glands are to be efficiently lubricated and are to be constructed so as to reduce the risk
of overheating. The glands are to be visible and easily accessible.
309 Runs of cargo piping installed in pipe tunnels are also
to comply with the requirements in 308 and 311. The tunnel
is not to have any other openings except to the weather deck
and the pump room.
Parts which may accidentally come into contact if the seal
is badly aligned or if a bearing is damaged, are to be of such
material that no spark will occur. If an expansion below is
fitted, it is to be hydraulically pressure tested.
311 In any pump room where a pump serves more than
one tank, a stop valve is to be fitted in the line to each tank.
205 Displacement pumps are to have relief valves with
discharge to the suction line.
206
Means are to be provided for stopping the pumps from
an easily accessible position outside the pump room.
B 300
Arrangement and general design
301 The complete cargo piping system is to be located
within the cargo area. Bow or stem loading and discharge
arrangements may be accepted by the Society after special
consideration.
310 Runs of cargo piping through bulkheads are not to
utilise flanges bolted through the bulkhead.
312 A stop valve is to be fitted at each cargo hose shore
connection.
313 A stop valve capable of being manually operated, is
to be fitted on each tank filling and discharge line, located
near the tank penetration. If individual deep-well pumps are
installed, a stop valve at the tank is not required on the discharge line.
314 Means for gas-freeing of the cargo lines are to be
provided.
315 The controls necessary during transfer and/or transport of cargoes other than in pump rooms which have been
specially dealt with are not to be located below the weather
deck.
DET NORSKE VERITAS
Rules tor Ships , July 1999
Pt.5 Ch.4 Sec.6 - Page 15
316 If independent tanks are required according to List of
Cargoes, all pipe connections shall be above the liquid levef.
B 400
Pressure indication
401 Pump discharge pressure gauges are to be provided
outside the pump room.
B 500
102 The outlet(s) is to be located such that the cargo contaminated discharges will not enter: the ship's seawater intakes.
Welding procedure tests
D 200
Sizing of the discharge outlet
201 The internal diameter of the outlet is not to be less
than:
Qo
501 Welding procedure tests are required for cargo piping
of austenitic stainless steel.
502 The requirements are as given in Pt.2 Ch.3 Sec.2 except that Charpy tests are not required for austenitic stainless
steel.
503 Special welding procedure tests will not be required
if previous welding procedure tests for similar material,
thicknesses and welding positions are satisfactorily documented.
Guidance note:
In order to comply with requirements for passing radiographic
testing of welding of butt joints on stainless steel pipes, it is
strongly recommended that welding is carried out with argonbacking inside piping.
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B 600
Testing
601 Cargo piping butt welds are to be subjected to radiographic testing covering at least 10% of the welded connections, when steel pipes are used. This percentage may
be increased as found necessary by the Surveyor. All radiographs are at least to meet the requirements to mark 4
(blue) according to IIW Collection of Reference Radiographs
of Welds in Steel.
602 Cargo piping is to be hydrostatically tested in the
presence of the Surveyor to a test pressure = 1,5 x the design pressure.
If hydrostatic testing of separate lengths of piping, valves,
expansion elements etc. has been carried out prior to the
installation on board, a tightness test only is required after
completion of the installation onboard.
C. Stripping of Cargo Tank and Cargo Lines
C 100
SL
where
Qo
L
=
=
102 Cargo stripping performance str 0,3 means that the
amount of cargo residue in the tank and associated piping
does not exceed 0,3 m3.
103 Cargo stripping performance str 0,1 means that the
amount of cargo residue in the tank and associated piping
does not exceed 0, 1 m3.
104 The verification of the above residue quantities is to
be through actual testing with water and in accordance with
an approved test procedure.
D. Discharge of Contaminated Water
Location of discharge outlet
101 For discharge of cargo contaminated water an outlet
located below the waterline in vicinity of the tum of the
bilge is to be arranged within the cargo area.
discharge rate (m3 /h)
distance of outlet from forward perpendicular (m).
In the case of angled outlets only the velocity component of
the discharge transverse to the ship's longitudinal axis may
be considered when determining Q 0 .
The discharge rate assumed as the basis for outlet(s) sizing
is not to be taken less than the aggregate throughput of the
washing machines in anyone tank.
D 300
Cargo Record Book
301 All ships having a Certificate of Fitness (COF) or a
Noxious Liquid Substances (NLS) Certificate for the carriage of liquid substances as listed in the !BC Code Chapter
17 and 18, are to have on board a Cargo Record Book according to Reg. 9 in MARPOL 73178, Annex II.
E. Stern loading and unloading arrangements
E 100
General
101 Subject to the approval of the Society, cargo piping
may be fitted to permit stem loading and unloading. Portable
arrangements will not be permitted.
102 Stem loading and unloading lines should not be used
for the transfer of products required to be carried in Ship
type 1 ships. Stem loading and unloading lines should not
be used for the transfer of cargoes emitting toxic vapours
required to comply with Sec.9 B400, unless specifically approved by the Society.
E 200
General
101 For certain cargoes as indicated in the List of
Cargoes, the amount of cargo residues in the cargo tank and
associated piping is required to be less than the Limits specified in 102 and I 03.
D 100
D=-
Piping arrangement
201 In addition to Pt.4 Ch. I Sec.6, the following provisions apply:
a) The piping outside the cargo area should be fitted at least
760 mm inboard on the open deck. Such piping should
be clearly identified and fitted with a shut-off valve at its
connection to the cargo piping system within the cargo
area. At this location, it should also be capable of being
separated by means of a removable spool piece and blank
flanges when not in use.
b) The shore connection should be fitted with a shut-off
valve and a blank flange.
c) The piping should be full penetration butt welded, and
fully radiographed. Flange connections in the piping
should only be permitted within the cargo area and at the
shore connection.
d) Spray shields should be provided at the connections specified in a) as well as collecting trays of sufficient capacity with means for the disposal of drainage.
e) The piping should be self-draining to the cargo area and
preferably into a cargo tank. Alternative arrangements
for draining the piping may be accepted by the Society.
DET J\ORSKE VERITAS
6
Rules for Ships , July 1 999
Page 16 - Pt.5 Ch.4 Sec.6
f) Arrangements should be made to allow such piping to be
purged after use and maintained gas-safe when not in
use. The vent pipes connected with the purge should be
located in the cargo area. The relevant connections to the
piping should be provided with a shut-off valve and blank
flange.
302 Air pipes and other openings to enclosed spaces not
listed in 301 should be shielded from any spray which may
come from a burst hose or connection.
303 Escape routes should not terrnillate within the coamings required by 304 or within a distance_of 3 m beyond the
coamings.
··
E 300
304 Continuous coamings of suitable height should be fitted to keep any spills on deck and away from the accommodation and service areas.
Accommodation entrances
301 Entrances, air inlets and openings to accommodation,
service and machinery spaces and control stations should not
face the cargo shore connection location of stem loading and
unloading arrangements. They should be located on the
outboard side of the superstructure or deckhouse at a distance of at least 4 % of the length of the ship but not less than
3 m from the end of the house facing the cargo shore connection location of the stem loading and unloading arrangements. This distance, however, need not exceed 5 m.
Sidescuttles facing the shore connection location and on the
sides of the superstructure or deckhouse within the distance
mentioned above should be of the fixed (non-opening) type.
In addition, during the use of the stem loading and unloading arrangements, all doors, ports and other openings on the
corresponding superstructure or deckhouse side should be
kept closed. Where, in the case of small ships, compliance
with Sec.3 D103 and this paragraph is not possible, the Society may approve relaxations from the above requirements.
DET
E 400
Electrical equipment - Fire fighting
401 Electrical equipment within the coamings required by
304 or within a distance of 3 m beyond the coamings should
be in accordance with the requirements of Sec.12.
402 Means of communication between the cargo· control
station and the cargo shore connection location should be
provided and certified safe, if necessary. Provision should
be made for the remote shutdown or cargo pumps from the
cargo shore connection location.
403 Ships fitted with stem loading and unloading arrangements should be provided with one additional foam monitor
meeting the requirements of Sec.11 C208 and Sec.11 C21 l.
The additional monitor should be located to protect stem
loading and unloading arrangements. The area of the cargo
line aft of the cargo area should be protected by the above
mentioned applicator.
NORSKE VERITAS
Rules for Ships , July 1999
Pt.5 Ch.4 Sec.7 -
Page 17
SECTION 7
CARGO HEATING AND COOLING ARRANGEMENTS
Contents
A. Cargo Heating and Cooling Arrangements
A 100
A 200
General
Heating of cargoes with temperatures above 80°C
107 Where products with a sigii.ificant toxic hazard are
being heated or cooled, the heating or cooling media are as
indicated in the List of Cargoes to operate:
102 The heating and cooling media are to be compatible
with the cargo.
in a circuit independent of other ship's services, except
for another cargo heating or cooling system, and not enter the engine room; or
- in a circuit dependent of other services, if the condensate
is not returned to the engine room, or
- in a system external to the tanks; or
- in a circuit where the medium is sampled to check for the
presence of cargo before it is recirculated to other ship's
services or into the engine room. The sampling equipment is to be located within the cargo area and be capable
of detecting the presence of any toxic cargo being heated
or cooled.
103 Heating or cooling systems are to be provided with
valves to isolate the system for each tank and to allow manual regulation of flow.
The suitability of the sampling method must be documented for
each product.
104 For any heating or cooling system, means are to be
provided to ensure that, when in any other but the empty
condition, a higher pressure is maintained within the system
than the maximum pressure head exerted by the cargo tank
content on the system.
108 A cooling system is to be arranged in accordance with
the requirements in Ch.5 Sec.7 A201. ln addition the cooling system is to comply with the requirements given in
Ch. JO to the extent these are applicable.
105 Cargo heating and cooling pipes are not to penetrate
the cargo tank boundaries other than on the top of the tank.
109 Steam and exhaust pipes for heating coils fitted in
cargo tanks, are to be arranged for blank flanging outside
the engine or boiler room.
A. Cargo Heating and Cooling Arrangements
A 100 General
101 Requirements for water systems and steam systems are
identical to those of Pt.4 Ch. l unless otherwise stated.
106 Means are to be provided for measuring the cargo
temperature. When overheating or overcooling could result
in a dangerous condition, temperature alarm is to be provided. The means for measuring the cargo t~mperature shall
be of restricted or closed type, respectively, when a restricted or closed gauging device is required for individual
substances as shown in the List of Cargoes.
Guidance note:
-
A restricted temperature measuring device is subject to the
definition for a restricted gauging device in Sec.13 BlOO,
e.g. a portable thermometer lowered inside a gauge tube of
the restricted type.
- a closed temperature measuring device is subject to the definition for a closed gauging device in Sec.13 BlOO, e.g. a
remote thermometer of which the sensor is installed in the
tank.
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-
Guidance note:
---e-n-d---o-f--G-u-i-d-a-n-c-e--..:n-o-t-e---
110
ceed
111
used
Heating medium temperature is normally not to ex220°C.
Condensate from cargo heating :systems is not to be
for feed water for main boilers.
A 200 Heating of cargoes with temperatures above
80'C
201 Heating plants for cargoes with temperatures above
80 ° C are to be arranged with redundancy.
202 Pumps and valve systems are to be suitable for the
type of cargo to be transported.
203 Heating system for cargo pumps and cargo lines to
be arranged as found necessary.
204 Temperature gauges are to be arranged in each cargo
tank enabling the monitoring of temperature at bottom,
middle and top of tanks.
DET NORSKE VERITAS
Rules for Ships , July 1999
Page 18 - Pt.5 Ch.4 Sec.8
SECTION 8
MARKING OF TANKS, PIPES AND VALVES
Contents
A 200 Pipelines
201 Pumps, valves and pipelines are to be distinctively
A. General
A 100
A 200
A 300
marked to identify the service and tanks which they serve.
General remarks regarding marking of valves are given in
Pt.4 Ch. I Sec. 3.
Marking plates
Pipelines
Marking of independent tanks
A 300 Marking of independent tanks
301 Every independent tank is to have a marking plate
A. General
A 100 Marking plates
101 Marking plates are to be made of corrosion resistant
material, and are to be permanently fixed to valve handles,
flanges or similar parts. Markings, bolt holes, etc. in the
tanks themselves are to be avoided.
The lettering is to be impressed on the marking plate in letters of at least 5 mm height. The marking plates are to be
placed in easily visible positions and are not to be painted.
giving the followmg information as relevant:
Tank No.
Design vapour pressure: bar
Maximum cargo density: kg/m3
Capacity of the tank: m3 (98 % filled)
Test pressure: bar
Name of builder:
Year of construction:
The marking plate may also be used for the necessary
marking of ioentification.
For definitions of:
Design vapour pressure p,,, see Sec. I B.
Test pressure, see Sec.5
DF.T NoRsKE VERITAS
L.
Rules for Ships , July 1999
Pt.5 Ch.4 Sec.9 - Page 19
SECTION 9
GAS FREEING AND VENTING OF CARGO TANKS
Contents
B. Tank Venting Systems
A. Gas Freeing of Cargo Tanks
A 100 General
B 100
101 In the following the term •pressure relief valve• denotes a safety valve which opens at a given internal pressure
above atmospheric pressure, and the term .:vacuum relief
valve» denotes a safety valve which opens at a given internal
pressure below atmospheric pressure. By P/V valves are
meant combined pressure/ vacuum relief valve~.
B. Tank Venting Systems
B
B
B
B
100
200
300
400
General
Tank venting system, type c1
Tank venting system, type c2
Tank venting system, type c3
102 The master should be provided with the maximum
permissible loading and unloading rates for each tauk or
group of tanks consistent with design of the venting systems.
A. Gas Freeing of Cargo Tanks
A 100
101
General
General
Means for gas freeing of the tanks are to be provided.
The arrangement for gas freeing cargo tanks should be such
as to minimize the hazards due to the dispersal of flammable
or toxic vapours in the atmosphere and to flammable or toxic
vapour mixtures in a cargo tank.
The ventilating system for cargo tanks is to be used exclusively for ventilating purposes. Connection between cargo
tank and pump room ventilation will not be accepted.
102 Gas freeing operations should be carried out such that
vapour is initially discharged in one of the following ways:
1) through the vent outlets specified in B300 or B400; or
2) through outlets at least 2 m above the cargo tank deck
level with a vertical efflux velocity of at least 30 mis
maintained during the gas freeing operation; or
3) through outlets at least 2 m above the cargo tank deck
level with a vertical efflux velocity of at least 20 mis
which are protected by suitable devices to prevent the
passage of flame.
103 Tank venting systems as described below are to be
provided according to the List of Cargoes.
B 200
Tank venting system, type c 1
201 For some particular products an open tauk venting
system is applicable.
B 300
Tank venting system, type c2
301 The tanks are to have arrangement for pressure/ vacuum relief during voyage and venting during loading and
unloading with closed tank hatch covers.
302 Pressure vacuum relief valves are to be fitted to each
tank to limit the pressure or vacuum in the tank.
The venting system may conslst of individual vents from
each tank or the vents from each individual tank may be
connected on the pressure side of the P/V-valve to a common header. Due regard is in that_ case to be paid to cargo
segregation.
303 Shut-off valves are not to be fitted neither above nor
below P/V valves, but by-pass valves may be provided.
Guidance note:
304 The opening pressure of the pressure relief valves is
normally to be 0,20 bar above atmospheric pressure.
When the flammable vapour concentration at the outlets has been
reduced to 30% of the lower flammable limit and in the case of
a toxic product the vapour concentration does not present a significant health hazard, gas freeing may thereafter be continued
at cargo tank deck level.
The opening pressure of the vacuum relief valves is normally not to be lower than 0,07 bar below atmospheric
pressure.
---e-n-d---o-f---G-u-i-d-a-n-c-e---n-o-t-e---
103 The outlets referred to in I 02 2) and 102 3) may be
fixed or portable.
104 Installations where the fans for ventilation and gas
freeing of the tanks are permanently installed, will be specially considered. The air supply line from the fan is to have
a shut-off valve and a non-return valve.
105 Piping from a ventilating plant or inert gas plant is to
be connected to cargo pressure piping systems only for
ventilating or inerting purposes.
106 Permanent pipe connections between a ventilating
plant or inert gas plant and cargo pressure piping systems
will normally not be accepted.
107 When a ventilating plant is connected to the cargo
lines, the connecting pipe is to have two valves, one of
which is to be a non-return valve or a flap valve, and the
other a stop valve.
305 P/V valves are to be located on open deck and are to
be of a type which allows the functioning of the valve to be
easily checked.
306 Venting systems to be used for cargoes that may cause
clogging of the venting lines, will be specially considered.
307 Intake openings of vacuum relief valves are to be located at least 1,5 m above tank deck, and are to be protected
against the sea.
The arrangement is to comply ·with the requirements in Pt.3
Ch. I Sec. I!.
308 Cargo tank vent outlets are to be situated not less than
6 metres above the weather deck or above the fore and ;:i.ft
gangway, if fitted within 4 metres of the gangway.
The vent exits are also to be arranged at a distance of at least
10 m from the nearest air intake or opening to accommodation and service spaces and ignition sources. The vapour
discharge is to be directed upwards in the form of unimpeded jets.
DET NORSKE VERITAS
Rules for Ships , July 1999
Page 20 - Pt.5 Ch.4 Sec.9
309 The vent height may be reduced to 3 m above the
deck or fore and aft gangway as applicable, provided high
velocity vent valves of an approved type with an exit velocity of at least 30 mis, are fitted.
The vent exits are also to be arranged at a distance of at least
10 m from the nearest air intake or openings to accommodation and service spaces and ignition sources.
310 Vapour outlets for tanks to be used for cargoes with
flashpoint below 60°C should be provided with approved
devices to prevent the passage of flame into the cargo tanks.
Due attention is to be paid in the design of P/V valves, flame
screens and vent heads to the possibility of the blockage of
these devices by the freezing of cargo vapour or by icing
up in adverse weather conditions. Provisions should be
made that the system and fittings may be inspected, operationally checked, cleaned or renewed as applicable.
311 The vent system is to be sized, allowing for flame
screens, if fitted, to permit loading at a design rate without
overpressuring the tank. Specifically, under conditions in
which a saturated cargo vapour is discharged through the
venting system at the maximum anticipated loading rate, the
pressure differential between the cargo tank vapour space
and the atmosphere is not to exceed 0,2 kp/cm2 or, for independent tanks, the maximum working pressure of the
tank.
312 The pipe system for escape gas should be self-draining
under all normal operating conditions of list and trim. Where
it is necessary to drain venting systems above the level of
any P/V valve, capped or plugged drain cooks should be
provided.
313 Provision should be made to ensure that the liquid
head in any tank does not exceed the test head of that tank;
overflow control systems or spill valves, together with
gauging devices and tank filling procedures may be accepted
for this purpose.
Guidance note:
Where the means of limiting cargo tank ov~rpressure includes
an automatic closing valve, the valve shouJd-comply with Sec.13
B200.
---e-n-d---o-f---G-u-i-d-a-n-c-e---n-o- t-e--
B 400
Tank venting system, type c3
401 The tanks are to have arrangement for pressure/ vacuum relief during voyage and venting during loading and
unloading with closed tank hatches in compliance with 200,
and with additional requirements as given in 302 and 303.
402 Gas outlets are normally to be at a minimum height
of B/3 or 6 m, whichever is greater above the weather deck,
or in the case of a deck tank the access gangway, where B
~ ship's moulded breadth. Further, the outlets are not to
be less than 6 m above the fore and aft gangway if fitted
within a horizontal distance of 6 m from the gangway.
The vent height may be reduced to 3 m above the deck or
fore and aft gangway as applicable provided high velocity
vent valves of an approved type, directing the vapour/air
mi~ture upwards in an unimpeded jet with an exit velocity
of at least 30 mis, are fitted.
The outlets are to be situated at a horizontal distance of at
least 15 m from air intakes, port holes or doors to accommodation and service spaces.
For ships with length less than 90 m, smaller distances may
be accepted.
403 Valved pipe connections for returning the expelled
gases ashore during loading, are to be provided.
DET NORSKE VERITAS
Rules for Ships , July 1999
Pt.5 Ch.4 Sec.10 -
Page 21
SECTION 10
MECHANICAL VENTILATION IN THE CARGO AREA
Contents
110 Electric fan motors are noCto be installed in ventilation ducts for cargo handling spaces.
A. System Requirements
General
111 Starters for fans for ventilation of gas safe spaces
within the cargo area are to be located outside this area or
on open deck.
A 100
A 200
Fans serving gas dangerous spaces
B. Ventilation, type v2
B 100
B 200
If electric motors are installed in such rooms, the ventilation
capacity is to be great enough to prevent the temperature
limits specified in Pt.4 Ch.4, from being exceeded, taking
into account the heat generated by the electric motors.
Ventilation of cargo handling spaces
Ventilation of spaces not normally entered
C. Ventilation, type v3
C 100
C 200
Ventilation of cargo handling spaces
Ventilation of spaces not normally entered
112 Wire mesh protection screens of not more than 13 mm
square mesh are to be fitted in outside openings of ventilation ducts.
For ducts where fans are installed, protection screens are
also to be fitted inside of the fan to prevent the entrance of
objects into the fan housing.
A. System Requirements
A 100
General
101 Independent ventilation systems are to be provided for
gas dangerous and gas safe spaces.
Ventilation systems within the cargo area are to be independent of other ventilation systems.
102 The air inlakes for the ventilating systems are to be
arranged outside gas dangerous zones at places where is the
least possible risk of gas, gas-air mixtures or sparks being
drawn into the system.
103 Ventilation ducts for spaces within the cargo area are
not to be led through engine rooms, accommodation, working spaces, etc.
104 The capacity of the ventilation plant is normally based
on the total volume of the room. An increase in required
ventilation capacity may be necessary for rooms having a
complicated form.
105 Gas safe spaces are to be arranged with ventilation of
the positive pressure type. For gas dangerous spaces where
the overpressure may cause spread of gas to adjacent spaces,
the ventilation is to be of the extraction type.
106 Gas safe spaces situated in the cargo area are to be
fitted with a permanent mechanical ventilation system giving
at least 30 air changes per hour.
For gas safe cargo control rooms, the ventilation rate may,
however, be reduced to 8 air changes per hour.
107 The air lock spaces are to be mechanically ventilated
from a gas safe space or zone on the open weather deck.
The ventilation capacity is to be at least 30 air changes per
hour.
108 Ballast pump rooms and tween deck spaces not containing cargo handling equipment (e.g. pumps, valves, etc.)
are to be provided with a mechanical ventilation system
giving at least 20 air changes per hour.
109 Ventilation systems for pump and compressor rooms
are to be in operation when pumps or compressors are
working. Pumps and compressors are not to be started before the ventilation system in the electric motor room has
been in operation for 15 minutes. Warning notices to this
effect are to be placed in an easily visible position near the
control stand.
A 200
Fans serving gas dangerous spaces
201 Fans are to be designed with the least possible risk for
spark generation.
202 Minimum safety clearances between the casing and
rotating parts are to be such as to prevent any friction with
each other.
In no case is the radial air gap between the impeller and the
casing to be less than 0,1 of the diameter of the impeller
shaft in way of the bearing, but not less than 2 mm. It need
not be more than 13 mm.
203 The parts of the rotating body and of the casing are
to be made of materials which are recognised as being spark
proof, and they are to .have antistatic properties.
Furthermore, the installation on board of the ventilation units is to be such as to ensure the safe bonding to the hull of
the units themselves.
The following combinations of materials and clearances used
in way of the impeller and duct are considered to be nonsparking:
-
-
impellers and/or housing of non-metallic material, due
regard being paid to the elimination of static electricity;
impellers and housings of non-ferrous materials;
impellers· of aluminium alloys or magnesium alloys and
a ferrous (including austenitic stainless steel) housing on
which a ring of suitable thickness of non-ferrous materials is fitted in way of the impeller, due regard being paid
to static electricity and corrosion between ring and housing;
impellers and housing of austenitic stainless steel;
any combination of ferrous (including austenitic stainless
steel) impellers and housing with not less than 13 mm tip
design clearance.
204 Any combination of an aluminium or magnesium alloy
fixed or rotating component and a ferrous fixed or rotating
component, regardless of tip clearance, is considered a
sparking hazard and is not to be used in these places.
205 Spare parts are to be carried for each type of fan referred to in this section. Normally one motor and one impeller is required carried for each type of fan used in gas
dangerous spaces.
DET NORSKE VERITAS
Rules for Ships , July 1999
Page 22 - Pt.5 Ch.4 Sec. 10
B. Ventilation, type v2
B 100
101
Ventilation of cargo handling spaces
Cargo handling spaces are pump rooms, compressor
rooms and other enclosed spaces which contain cargo han-
dling equipment and similar spaces in which work is performed on the cargo.
102 A permanent mechanical ventilation system is to be
installed capable of circulating sufficient air to give at least
30 air changes per hour. Extraction from above and below
floor plates is to be possible, with the following arrangement
of exhaust trunking:
B 200 Ventilation of spaces not normally entered
201 Spaces not normally entered are -cofferdams, double
bottoms, duct keels, pipe tunnels, spaces containing cargo
tanks and other spaces where cargo may accumulate (water
ballast tanks not mcluded).
202 All spaces mentioned in 201 are fo be gasfreeable. If
necessary ducting is to be fitted in order to ensure efficient
gasfreeing.
203 A mechanical ventilation system (permanent or portable) is to be provided, capable of circulating sufficient air
to the compartments concerned. The capacity of the ventilation system is normally to give at least 8 air changes per
hour.
- in the pump room bilges just above the transverse floor
C. Ventilation, type v3
plates or bottom longitudinals, so that air can flow over
the top from adjacent spaces.
- an emergency intake located 2 m above the pump room
lower grating, The emergency intake is to have a damper
fitted, which is capable of being opened or closed from
the exposed main deck and lower grating level.
103 The exhaust outlets which are to discharge upwards
are to be situated at least 4 m above tank deck and at least
IO m in the horizontal direction from ventilation inlets to the
accommodation and other gas safe spaces.
C 100 Ventilation of cargo handling spaces
101 The requirements are the same as in B 100, except that
the air changes are to be 45 per hour, and the exhaust outlets
are to be situated at least I 0 m from ventilation inlets to the
accommodation and other gas safe spaces and at least 4 m
above the tank deck.
C 200 Ventilation of spaces not normally entered
201 The requirements are the same as for ventilation type
v2, see B200.
DET NORSKE VERITAS
Rules for Ships , July 1999
Pt.5 Ch.4 Sec.11 -
Page 23
SECTION 11
FIRE PROTECTION AND EXTINCTION
Contents
lion of permanent, approved gastighflighting enclosures for
illuminating the pump rooms, provided that they are of adequate strength and maintain the integrity and gas tightness
of the bulkhead as Class A.
A. Documentation
A 100
Plans and particulars
B. Fire Protection
B 100
B 200
B 300
106 Skylights to machinery spaces and cargo pump rooms
are to comply with the provisions of 103 as regards windows
and portlights, and, in addition, are to be so arranged as to
be capable of being easily closed from outside the spaces
which they serve.
Construction
Accommodation, service and control spaces
Fireman's outfit
C. Fire Extinction
C 100
C 200
C 300
Fire extinguishing in cargo area
Deck fire extinguishing system in cargo area
Fire extinguishing in cargo pump rooms
107 Paints, varnishes and other finishes used on exposed
interior surfaces, are not to represent an undue fire hazard.
B 200
A. Documentation
A 100
Plans and particulars
101 The following plans and particulars are to be submitted for approval:
-
arrangement and specification of fire water main equipment, location of hydrants and stop valves.
- specification of water nozzles, pipes, valves and other
fittings in the fire water main line.
- arrangement and specifications of fixed fire extinguishing
systems on deck.
- arrangement and specifications of fixed fire smothering
installations in enclosed. gas dangerous spaces.
202 All materials used in bulkheads, ceiling against steel,
insulation etc. are to be of non-combustible type. Fuming
strips etc. for bulkheads and ceiling are also to be of noncombustible materials.
203 The framing, including grounds, and the joint pieces
of bulkheads, linings, ceilings and draught stops, if fitted,
are to be of non-combustible material.
204 Corridor bulkheads, including doors, are to be of
Class A or B divisions extending from deck to deck. Where
continuous B Class ceilings and/or linings are fitted on both
sides of the bulkhead, the bulkhead may terminate at the
continuous ceiling or lining. Doors of cabins and public
spaces in such bulkheads may have louvre in the lower half.
205 Air spaces enclosed behind ceilings, panellings or
linings, are to be divided by close-fitting draught stops
spaced not more than 14 m apart.
B. Fire Protection
B 100
Accommodation, service and control spaces
201 For the application of the requirement in Pt.4 Ch.6
Sec.15 BlOO, B200 and B900, only method IC as defined
in Pt.4 Ch.6 Sec.IS BlOO is to be used.
Construction
101 In lieu of Pt.4 Ch.6 Sec.15 B300 and in addition to
complying with the specific provisions for fire integrity of
bulkheads and deck mentioned elsewhere in this chapter, the
minimum fire integrity of bulkheads and decks are to be as
prescribed in Ch. 3 Sec. 7 Tables B 1 and B2.
206 Control stations are to be separated from adjacent enclosed spaces by means of Class A bulkheads and decks.
The insulation of these control station boundaries will be
considered in each case, with due regard to the risk of fire
in adjacent spaces.
102 For ships intended to carry products which are "nonflammable" (entry "no" in the column for fire protection in
Appendix A), and for ships intended to carry flammable
products with flash point above 60°C the requirements to
constructional fire protection in Pt.4 Ch.6 Sec.15 apply.
207 Stairways which penetrate only a single deck, are to
be protected at least at one level by self-closing doors so as
to limit the rapid spread of fire from one deck to another.
Stairways which penetrate more than a single deck, are to
be protected by self-closing steel doors at all levels. Selfclosing doors are not to be fitted with holdback hooks.
However, holdback arrangements fitted with remote release
fittings of the fail-safe type may be utilised.
103 Exterior boundaries of superstructures and deckhouses enclosing accommodation and service spaces and
including any overhanging decks which support such accommodation, are to be additionally protected against heat
for the whole of the portions which face cargo area, and for
3 m aft of the front boundary, by insulation to Class A-60
standard.
104 Bulkheads between cargo pump rooms, including their
trunks, and machinery spaces are to be Class A, and are to
have no penetrations which are less than Class A-0 or
equivalent in all respects, other than the cargo pump shaft
glands and similar glanded penetrations.
105 Bulkheads and decks forming divisions separating
machinery spaces and cargo pump rooms, including their
trunks, respectively, from the accommodation and service
spaces, are to be of A-60 Class. Such bulkheads and decks
and any boundaries of machinery spaces and cargo pump
rooms are not to be pierced for windows or port lights.
These requirements, however, do not preclude the installa-
208 Lift trunks in machinery spaces and accommodation
are to be of .steel and are to be provided with self-closing
steel doors. Lift trunks, including doors, are to be insulated
to Class A-60. Any windows in lift trunk doors are to be
fitted with double wired glass, each glass at least 6 mm in
thickness.
209 Ducts provided for ventilation of machinery spaces,
are in general not to pass through accommodation or service
spaces.
Exemptions from this requirement may be permitted provided that:
-
the ducts are constructed of steel and are insulated to
Class A-60, or
the ducts are constructed of steel and are fitted with an
automatic fire damper close to the boundary penetrated,
DET NORSKE VERITAS
Rules for Ships , July 1999
Page 24 - Pt.5 Ch.4 Sec.11
and are insulated to Class A-60 from the machinery space
to a point at least 5 metres beyond the fire damper.
a) 2 l/m2 min of the cargo deck area, where cargo deck area
means the maximum breadth of the. ship times the total
longitudinal extent of the cargo tank spaces,
210 Ducts provided for ventilation of accommodation or
service spaces, are in general not to pass through machinery
spaces. Exemptions from this requirement may be permitted,
provided that ducts are constructed of steel and an automatic
fire damper is fitted close to the boundary penetrated.
b) 20 lim2 min of the horizontal sectional area of the single
tank having the largest such area,
·
2
c) 10 l/m min of the area protected by the largest monitor,
such area being entirely forward of the monitor, but not
less than 1250 I/min. For ships of less than 4000 tons
deadweight, the minimum capacity of the monitor is to
be to the satisfaction of the Society.
B 300
Fireman's outfit
301 Ships carrying toxic or/and flammable products, are
to have onboard sufficient, but not less than 4 complete sets
of fireman's outfit. For description of outfit see Pt.4 Ch.6
Sec.11.
The foam concentrate is to be of an approved type, and delivered with product certificate for the foam on board the
vessel including a chemical analysis of the foam.
302 Ships above 1200 tons gross are to have onboard a
special compressor for providing an adequate supply of
breathing air.
207 Sufficient foam concentrate is to be supplied ti> ensure
at least 30 minutes of foam generation when using solution
rates stipulated in 206 (a), (b) and (c), whichever is the
greater.
C. Fire Extinction
C 100
Fire extinguishing in cargo area
101 Suitable fire extinguishing equipment for all products
carried is to be provided. Fire extinguishing media considered to be suitable for certain products, are listed for information in the List of Cargoes.
C 200
Deck fire extinguishing system in cargo area
201 All ships with the class notation Tanker for Chemicals or Tanker for C for dedicated chemical cargoes, except those engaged solely in the transport of non-flammable
products, are to be fitted with a fixed deck foam fire-extinguishing system in accordance with the following requirements. Ships which are dedicated to the carriage of specific
cargoes may, however, be protected by alternative provisions to the satisfaction of the Society when they are
equally effective for the products concerned as the deck
foam system required for the generality of flammable cargoes.
Guidance note:
The term «ships which are dedicated to the carriage of specific
cargoes~ means ships which are dedicated to the carriage of a
restricted number of cargoes.
---e-n-d---o-f---G-u-i-d-a-n-c-e---n-o-t-e---
202 For ships intended to carry flammable products with
flash point exceeding 60°C the requirements as specified for
oil tankers in Ch.3 Sec.7 AlOO should be applied in lieu the
regulations of this section.
203 Only one type of foam concentrate is to be supplied,
and it is to be effective for the maximum possible number
of cargoes intended to be carried. For other cargoes for
which foam is not effective or is incompatible, additional
arrangements to the satisfaction of the Society are to be
provided. Basic protein foams should not be used.
204 The arrangements for providing foam are to be capable of delivering foam to the entire cargo tank area as well
as into any cargo tank, the deck of which is assumed to be
ruptured.
205 The deck foam system is to be capable of simple and
rapid operation. The main control station for the system is
to be suitably located outside of the cargo tank area, adjacent
to the accommodation spaces and readily accessible and operable in the event of fires in the areas protected.
206 The rate of supply of foam solution is to be not less
than the greater of the following:
208 Foam from the fixed foam system is to be supplied
by means of monitors and foam applicators. At least 50 per
cent of the foam rate required in 206 (a) or (b) is to be delivered from each monitor. The capacity of any monitor is
to be at least 10 !/min of foam solution per square metre of
deck area protected by that monitor, such area being entirely
forward of the monitor. Such capacity is to be not less than
1250 I/min. For ships of less than 4000 tons deadweight, the
minimum capacity of the monitor is to be to the satisfaction
of the Society.
209 The distance from the monitor to the farthest extremity
of the protected area forward of that monitor is to be not
more than 75 % of the monitor throw in still air conditions.
210 A monitor and hose connection for a foam applicator
are to be situated both port and starboard at the poop front
or accommodation spaces facing the cargo tanks.
211 Applicators are to be provided for flexibility of action
during fire-fighting operations and to cover areas screened
from the monitors. The capacity of any applicator is to be
not less than 400 I/min and the applicator throw in still air
conditions is to be not less than 15 m.
The number of foam applicators provided is to be not less
than four. The number and disposition of foam main outlets
are to be such that foam from at least two applicators can
be directed to any part of the cargo tank deck area.
212 Valves are to be provided in the foam main, and in the
fire rnain where this is an integral part of the deck foam
system, immediately forward of any monitor position to
isolate damaged sections of those mains.
213 Operation of a deck foam system at its required output
is to permit the simultaneous use of the minimum required
nu~ber of jets of water at the required pressure from the fire
mam.
214 Suitable portable fire extinguishing equipment for the
products to be carried is to be provided and kept in good
operating order.
215 All sources of ignition are to be excluded from spaces
where flanunable vapotiis may be present.
216 When the alternative deck fire extinguishing system
permitted under 20 I is a fixed dry chemical powder fire
extinguishing system, the system is to comply with Ch.5
Sec.11 C400.
C 300
Fire extinguishing in cargo pump rooms
301 Ships with the class notation Tanker for Chemicals
or Tanker for C for dedicated chemical cargoes, except
those engaged solely in the carriage of sodium hydroxide
solution (caustic soda, caustic potash and phosphoric acid),
DET NoRSKE VERITAS
Rules for Ships , July 1999
Pt.5 Ch.4 Sec.11 - Page 25
are to be equipped with a fixed gas fire-extinguishing system
in the cargo pump room. The fixed gas fire-extinguishing
system may be a carbon dioxide system as specified in 302
to 304 below.
306 Cargo pump rooms of ships which are dedicated to the
carriage of specific cargoes are to be protected to the satisfaction of the Society.
Guidance note:
302 A cargo pump room carbon dioxide fire extinguishing
system is to comply with the requirements in Pt.4 Ch.6
Sec.3.
The term «ships which are dedicated to· the carriage of specific
cargoes», means ships which are dedicated to the carriage of a
restricted number of cargoes.
303 A notice is to be exhibited at the controls stating that
the system is only to be used for fire extinguishing and not
inerting purposes, due to the ignition hazard.
307 A fire-extinguishing system consisting of either a fixed
pressure water spray system or a high expansion foam system could be provided for the cargo pump room if it can be
adequately demonstrated to the Society tliat cargoes will be
carried which are not suited to extinguishment by carbon
dioxide or halogenated hydrocarbons. The appendix to the
classification certificate will reflect this conditional require-
304 The amount of gas carried is to be sufficient to provide a quantity of free gas equal to 45 % of the gross volume
of the cargo pump room in all cases.
305 A notice is to be exhibited at the controls stating that
the system in only to be used for fire extinguishing and not
inerting purposes due ·to the electrostatic ignition hazard.
-e-n-d---o-f---G-u-i-d-a-n-c-e--n-o-t-e-
ment.
·
308 Steam smothering systems are not accepted for cargo
pump rooms.
DET NORSKE VERITAS
Rules for Ships , July 1999
Page 26 - Pt.5 Ch.4 Sec. 12
SECTION 12
ELECTRICAL INSTALLATIONS
Contents
B 200
Cargo tanks
A. General
The following installations are accepted:
A 100
201
Application
B. Electrical Installations in Cargo Area and Adjacent to this
Area
B 100
B 200
B 300
B
400
B 500
B 600
B 700
B 800
General
Cargo tanks
Cofferdams and other under deck spaces adjacent to cargo
tanks
Cargo pump rooms
EnClosed Or semi-enclosed spaces above cargo tanks
Hazardous areas on the open deck
Other spaces in the cargo area and in enclosed or semienclosed spaces with direct access to the cargo area
Tweendeck spaces
C. Signboards
C 100
General
The following installations are accepted:
301
Intrinsically safe,type 'ia' and associated wiring.
302 Electric depth-sounding devices, log devices and impressed current cathodic protection systems (for external hull
protection only).
Such equipment are to be of gas-tight construction or to be
housed in a gas-tight enclosure. The cables are to be installed in steel pipes with gas-tight joints up to the upper
deck.
Corrosion resistant pipes, providing adequate mechanical
protection, are to be used in compartments which may be
filled with seawater. (e.g. permanent ballast tanks).
The thickness of the pipes to be as for overflow and sounding
pipes through ballast or fuel tanks in accordance with Rule Pt. 4
Ch.I Sec.6 A.
Application
101 The requirements in this chapter are additional to
those given in Pt.4 Ch.4 and apply to tankers with the class
notations Tanker for Chemicals. The requirements may
be made wholly or partly valid also for tankers for dedicated
chemical cargoes (Tanker for C) in some cases.
102 Tankers exclusively built to carry cargoes with flash
point above 60°C will be considered in each case.
B. Electrical Installations in Cargo Area and
Adjacent to this Area
B 100
B 300 Cofferdams and other under deck spaces
adjacent to cargo tanks
Guidance note:
A. General
A 100
Intrinsically safe-type 'ia' and associated wiring.
General
---e-n-d---o-f---G-u-i-d-a-n-c-e---n-o-t-e--
303 In spaces provided with mechauical ventilation of at
least 8 changes of air per hour, the following requirements
apply:
- certified safe-type luminaires of pressurised or flameproof
type may be installed. The luminaires to be arranged in
accordance with Pt.4 Ch.4 Sec. 9 D 104. A signboard to
be fitted at each entrance. See C102
- lighting fittings of air driven certified safe-type
- general alarm audible and/or optical indicator of certified
safe flameproof type may exceptionally be allowed.
B 400 Cargo pump rooms
101 Electrical equipment and wiring are in general not to
be installed in hazardous areas. However, in spaces and areas listed in 200 to 800 installations may be accepted provided additional requirements as specified are complied
with.
102 Instrumentation, monitoring, control and communication are to be intrinsically safe-type equipment.
Guidance note:
In applications where this is technically impracticable, for example, solenoid valves, gas detection sensors, the following
types of protection may be considered in place of Category 'ib'
apparatus when approved by an Appropriate Authority: pressurised type 'p'; flameproof type 'd'; increased-safety type 'e'.
---e-n-d---o-f---G-u-i-d-a-n-c-e---n-o-t-e---
103 Additional requirements may be given for special
cargoes according to Sec.15.
104 The materials used for electrical equipment are not to
react dangerously with the cargo liquids or gases to which
they may be exposed, and are to be corrosion resistant
against such liquids or gases.
The following installations are accepted:
401
Intrinsically safe-type 'ia' and associated wiring.
402 Electrical devices as described in 302 above, installed
in accordance with that subsection.
403 Certified safe-type luminaires of the pressurised or
flameproof type. The installation to be arranged as specified
in 303.
404
Lighting fittings of air driven certified safe-type.
405 General alarm audible and/or optical indicator of certified safe flameproof type may exceptionally be allowed.
406 Where it is necessary for cables other than intrinsically
safe circuits and those supplying lighting in the pump room
to pass through cargo pump room, they are to be installed
in steel pipes with gas-tight joints. The thickness of the
pipes to be in accordance with Pt.4 Ch. l Sec.6 A.
Guidance note:
The term 'cable pipe' is here used to denote nOt only circular
pipes, but also other closed ducts of non-circular shape.
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DET NORSKE VERITAS
Rules for Ships , July 1999
Pt.5 Ch.4 Sec.12 -
B 500 Enclosed or semi-enclosed spaces above cargo
tanks
The following installations are accepted:
501 For spaces immediately above cargo tanks, for spaces
having bulkheads above and in line with cargo tank bulkheads, and compartments for cargo gear, the following requirements apply:
- intrinsically safe-type 'ia' or 'ib' aod associated wiring
- certified safe-type luminaires of pressurised or flameproof
type. The installation to be arranged as specified in 303
- through runs of cables.
Guidance note:
Spaces having a 'corner-to-comer' connection with the cargo
tank, may be exempted from this requirement. The installation
will be considered in each case.
---e-n-d--o-f---G-u-i-d-a-n-c-e---n-o-t-e---
502 For spaces above cargo tanks not containing a source
of hazard and which are separated from the cargo tanks by
cofferdams, having openings in to any hazardous area. the
electrical installation is to comply with the requirements for
the space or area into which the opening leads.
B 600 Hazardous areas on the open deck
The following installations are accepted:
Page 27
704 If the switch- or fusegear for interlocking systems according to 702 are located in the room concerned, these
components are to be of certified Safe flameproof type, or
the circuits for this equipment is to be intrinsically safe-type,
Category Ex(ia) or Ex(ib).
705 The ventilation of gas-safe spaces in the cargo area is
to comply with the requirements in Sec.10. In addition it is
required that the 15 minutes prepurging period is to be ensured by automatic interlocking when the gas-safe space is
located below the upper deck.
B 800
Tweendeck spaces
801 Certified safe-type luminaires of pressurised or
flameproof type.
802 Any electrical equipment, additional to the luminaires
referred to in 801, may be installed in tweendeck spaces
above cargo tanks provided that:
- the compartment is suitably mechanically ventilated,
- the compartment having access solely from a gas-safe
space or zone on the deck above,
- the floor of the compartment is separated from the cargo
tanks by a cofferdam or a space as referred to in 501,
- the boundaries of the compartment are oil-tight and gastight with respect to the cofferdam and the tweendeck
space.
601 Definitions of gas dangerous zones are given in Sec.!
B. The following equipment will normally be accepted in
these zones on the open deck:
C. Signboards
- Certified safe-type equipment as referred to in Pt.4 Ch.4
Sec. 2B ('d', 'e', 'ia', 'ib', 'p'). Such equipment is to
be suitably protected for use on open deck. For instrumentation, monitoring, control and communication circuits, see 102.
- Through runs of cables. However, cable expansion bends
are not to be fitted within distances from the cargo tank
openings as specified in Sec.! B112.
101 Where electric lighting is provided for spaces in hazardous areas, a signboard at least 200 x 300 mm is to be
fitted at each entrance to such spaces with text:
B 700 Other spaces in the cargo area and in enclosed
or semi-enclosed spaces with direct access to the cargo
Alternatively a signboard with the same text cao be fitted at
each individual lightiog fittiog.
area
This item covers 'gas-safe' spaces as specified in Sec.1
Bl 13.
The following installations are accepted:
701 The same type of equipment as in similar rooms on
dry cargo ships are normally accepted (See Pt.4 Ch.4 Sec.2
C Table Cl), but with additional requirements as specified
in 702 to 705.
702 Electrical equipment, other than certified safe-type,
installed in spaces which have been made non-hazardous
areas by the ventilating system, to be automatically disconnected upon loss of overpressure.
703 When shaft glands are installed in bulkheads or decks
between hazardous areas and gas-safe spaces (overpressure
ventilated), the lightiog fittings and switches in these gassafe spaces are to be of certified safe flameproof type.
Other electrical equipment is to be of certified safe-type, or
is to be automatically disconnected upon loss of ventilation
in the space.
A part of the lighting installation may be accepted in a nonflameproof construction if de-energised upon of loss of
overpressure.
Guidance note:
Above mentioned requirement does not apply to main engine
room.
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C 100
General
BEFORE A LIGHTING FITTING IS OPENED
ITS SUPPLY CIRCUIT IS
TO BE DISCONNECTED
102 Where electric lighting is provided in spaces where the
ventilation must be in operation before the electric power is
connected, a signboard at least 200 x 300 mm is to be fitted
at each entrance, and with a smaller signboard at the switch
for each lighting circuit, with text:
BEFORE THE LIGHTING IS TURNED ON
THE VENTILATION MUST BE
IN OPERATION
103 Where socket-outlets are installed in cargo area or
adjacent area, a signboard is to be fitted at each socket-outlet
with text:
PORTABLE ELECTRICAL EQUIPMENT SUPPLIED
BY FLEXIBLE CABLES
IS NOT TO BE USED IN AREAS WHERE THERE IS
GAS DANGER
Alternatively signboards of size approximately 600 x 400
mm, with letters of height approximately 30 mm, can be
fitted at each end of the tank deck.
104 Where socket-outlets for welding apparatus are installed in areas adjacent cargo area, the socket outlet is ·to
be provided with a signboard with text:
WELDING APPARATUS NOT TO BE USED UNLESS
THE WORKING SPACE
AND ADJACENT SPACES ARE GAS-FREE.
DET NORSKE VERITAS
9
Rules for Ships , July 1999
Page 28 -
Pt.5 Ch.4 Sec.13
SECTION 13
INSTRUMENTATION AND AUTOMATION
Contents
A device which does not penetrate ··the tank shell or is
independent of the tank and which makes use of an indirect measurement for determining the amount of cargo.
Examples are weighing of cargo, pipe flow meter.
A. General Requirements
A 100 General
B.
B
B
B
B
Alarm, Indicating and Recording Systems
100 Cargo tank level gauging
200
300
400
B 500
102 Each cargo tank is to be provided with at least one liquid level gauging device. Type of gauging devices required
for the individual cargoes are shown in the List of Cargoes.
Overflow control
Vapour detection
Cargo temperature measurement
103 If a closed gauging device is not mounted directly on
the tank, it is to be provided with shut"<>ff valves situated as
close as possible to the tank.
Hold leakage alarm
A. General Requirements
B 200
Overflow control
A 100 General
101 For instrumentation and automation, including com-
201 Arrangements as described below are to be provided
according to the List of Cargoes.
puter based control and monitoring, the requirements of in
this chapter are additional to those given in Pt.4 Ch.5.
202 Type f1. The cargo tank is to be fitted with a visual
and audible high level alarm.
102 Remote reading systems for cargo temperature and
pressure are not to allow the cargo or vapour to reach gas
safe spaces. Direct pipe connections will not be accepted
This is to be able to be function tested from the outside of
the tank and is also to be independent of the level gauging
device required in 102 and the high-high level alarm required in 203.
103 If the loading and unloading of the ship is performed
by means of remotely controlled valves and pumps, all
controls and indicators associated. with a given cargo tank
are to be concentrated in one control position.
B. Alarm, Indicating and Recording Systems
B 100
Cargo tank level gauging
101 By •gauging device• is meant an arrangement for determining the liquid level of cargo in tanks. Consideration
of the hazard and physical properties of each cargo will give
the base for selecting one of the following types:
- open, type b1
A method which makes use of an opening in the tank and
directly exposes the operator to the cargo or its vapours.
Examples of this type are ullage openings and gauge
hatches.
- restricted, type b2
A device which penetrates the tank and which, when in
use, permits a limited quantity of cargo vapour or liquid
to be expelled to the atmosphere. When not in use, the
device is completely closed. Examples of this type are
rotary tube, fixed tube, slip tube and sounding pipe.
- closed, type b3
A permanently installed device which penetrates the tank,
but which is part of a closed system which keeps the
cargo containment system completely sealed off from the
atmosphere. Examples of this type are sight glasses,
pressure cells, float-tape systems, electronic or magnetic
probe.
- indirect, type b4
203 Type f2. In addition to the high level alarm as described in 202, a high-high level alarm is to be fitted. The
high-high level alarm is to be independent of the high level
alarm and the level gauging device.
B 300
Vapour detection
301 Ships carrying toxic and/or flammable cargoes are to
be equipped with at least two instruments designed and calibrated for testing for the specific vapours in question. If
such instruments are not capable of testing for both toxic
concentrations and flammable concentrations, then two separate sets of instruments are to be provided.
302 Vapour detection instruments may be portable or
fixed. If a fixed system is installed, at least one portable instrument is to be provided.
303 In the case of portable instruments being used, provisions are to be made to facilitate easy measurements, and
where necessary fitting of guide tubes to enable gas sampling hose to be easily lead to the space to be tested.
B 400
Cargo temperature measurement
401 Means for measuring the cargo temperature are to be
provided. Tanks intended for carriage of cargoes requiring
cargo level gauging systems type b2, b3 or b4, are to be
provided with a temperature measuring system providing a
gas segregation equivalent to the gauging systems required.
B 500
Hold leakage alarm
501 Hold spaces containing independent cargo tanks are
to be provided with alarm for leakage of liquids into the
holds.
DET NORSKE VERITAS
Rules for Ships , July 1999
Pt.5 Ch.4 Sec.14 - Page 29
SECTION 14
TESTS AFfER INSTALLATION
Contents
A. General
A JOO
Application
A. General
A 100 Application
101 All systems covered by this chapter are to be tested in
operation. As far as practicable, the 'tests are to be performed at the building yard.
102 Remaining function tests, which cannot be carried out
without cargo on board, may be carried out in connection
with the first cargo loading/transport with a representative
cargo.
DET NORSKE VERITAS
Rules for Ships , July 1999
Page 30 -
Pt.5 Ch.4 Sec. 15
SECTION 15
ADDITIONAL REQUIREMENTS FOR CERTAIN CARGOES
Contents
A. General Requirements
A
A
A
A
A
A
100
200
300
400
500
600
Application
Materials
Segregation of cargo from bunker tanks
Separate piping systems
Cargo contamination
Cargoes with low ignition temperature and wide flammability range
A 700 Inert gas
A 800 Moisture control (Drying)
A 900 Cargo pumps in tank
A 1000 Cargoes not to be exposed to excessive heat
A 1100 Cargoes requiring heating
A 1200 Cargo pump temperature sensors
B. Additional Requirements for Certain Groups of Cargoes
B 100
B 200
Acids
Cargoes which have a vapour pressure greater than 1,015
bar at 37 ,8 °C
C. Additional Requirements for Certain Chemicals
C
C
C
C
C
C
C
100
200
300
400
500
600
700
C 800
Ammonium nitrate solution, 93% or less
Carbon disulphide
Diethyl ether
Hydrogen peroxide solutions of 60% but not over 70%
Hydrogen peroxide solutions over 8% but not over 60%
Phosphorus, yellow or white
Propylene oxide and mixtures of ethylene oxide/ propylene oxide with ethylene oxide content of not more than
30% by weight
Sulphuric acid
C 900 Sulphur liquid
C 1000 Alkyl (C7 - C9) nitrates
Application
206 Aluminium or copper or alloys of either should not
be used as materials of construction for tanks, pipelines,
valves, fittings and other items of equipment that may come
in contact with cargo liquid or vapour.
207 Aluminium, stainless steel or steel covered with a
suitable protective lining or coating should be used as materials of construction for tanks, pipelines, valves, fittings
and other items of equipment that may come in contact with
cargo liquid or vapour.
208 The following materials of construction should be
used:
a) For concentrations of 98 % or greater, aluminium, or
stainless steel.
b) For concentrations of less than 98%, special acid-resistant
stainless steel.
209 Copper, silver, mercury and magnesium or other
acetylides-forming metals and their alloys should not be used
as materials of construction for tanks, pipelines, valves, fittings and other items of equipment that may come in contact
with cargo liquid or vapour.
211
101 The provisions of this section are applicable where
specific reference is made in the List of Cargoes.
The requirements are mainly of constructional nature or of
a nature affecting both construction and operation. It is advised that specific operational requirements for some of the
products are given in the International Code for the Construction and Equipment of ships carrying Dangerous
Chemicals in Bulk. It is assumed that the operational requirements are complied with during operation of the ship.
A 200
205 Copper and copper bearing alloys should not be used
as materials of construction for tanks, pipelines, valves, fittings and other items of equipment that may come in contact
with cargo liquid or vapour.
210 Copper and copper bearing alloys with greater than
1 % copper should not be used as materials of construction
for tanks, pipelines, valves, fittings and other items of
equipment that may come in contact with cargo liquid or
vapour.
A. General Requirements
A 100
204 Aluminium, magnesium, zinc, galvanised steel and
lithium should not be used as materials of construction for
tanks, pipelines, valves, fittings and other items of equipment that may come in contact with cargo liquid or vapour.
Materials
201 Materials of construction for cargo tanks, and associated pipe-lines, valves, fittings and other items of equipment, which are not to be used for certain products, are
specified in the List of Cargoes.
202 Copper, copper alloys, zinc, aluminium, galvanised
steel and mercury should not be used as materials of construction for tanks, pipelines, valves, fittings and other items
of equipment that may come in contact with cargo liquid or
vapour.
203 Copper, copper alloys, zinc or galvanised steel should
not be used as materials of construction for tanks, pipelines,
valves, fittings and other items of equipment that may come
in contact with cargo liquid or vapour.
Cargo tanks are to be made from solid stainless steel.
A 300 Segregation of cargo from bunker tanks
301 Cargoes with reference to this item (see List of Cargoes) are not to be carried in tanks adjacent to bunker tanks.
A 400
Separate piping systems
401 Cargoes with reference to this item (see List of Cargoes) are to be carried in tanks with separate piping systems
and with vent systems separate from tanks containing other
products.
402 Cargo tank relief valve settings are to be a minimum
of 0,2 bar.
A 500
Cargo contamination
501 Alkaline or acidic materials, such as caustic soda or
sulphuric acid, should not be allowed to contaminate this
cargo.
502 Water should not be allowed to contaminate this
cargo. In addition the following provisions apply:
- Air inlets to pressure/vacuum relief valves of tanks containing this cargo should be situated at least 2 m above
the weather deck.
- Water or steam should not be used as the heat transfer
media in a cargo temperature control system.
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Rules for Ships , July 1999
Pt. 5 Ch .4 Sec. 15 - Page 31
-
This cargo should not be carried in tanks adjacent to
permanent ballast or water tanks unless the tanks are
empty and dry.
- This cargo should not be carried in tanks adjacent to slop
tanks, cargo tanks containing ballast or slops or other
cargoes containing water which may react in a dangerous
manner. Pumps, pipes or vent lines serving such tanks
should be separate from similar equipment serving tanks
containing this cargo. Pipelines from slop tanks or ballast
lines should not pass through tanks containing this cargo
unless in a tunnel.
A 600 Cargoes with low ignition temperature and wide
flammability range
601 The distance of 3 m given in Sec.I B112 is to be increased to 4,5 m.
A 700
Inert gas
701 The cargo tank vapour space and associated piping
systems are to be filled and maintained with a gas (inert)
which will not support combustion and which will not react
with the cargo.
702 An adequate supply of inert gas for use in filling and
discharging is to be carried or is to be manufactured on
board unless a shore supply is available.
In addition, sufficient inert gas is to be available on the ship
to compensate for normal losses during transportation.
703 The inert gas system on board the ship is to be able
to maintain at least 0,07 bar pressure within the containment
system at all times. In addition, the inert gas system shall
not raise the cargo tank pressure to more than the tank's
relief valve setting.
704 Means are to be provided for monitoring ullage spaces
containing a gas blanket to ensure that the correct atmosphere is being maintained.
A 1000 Cargoes not to be exposed to excessive heat
1001 Because of their sensitive nature such cargoes are not
to be carried in uninsulated deck tanks.
A 1100 Cargoes requiring heati_ng
1101 Such cargoes will only be permitted in tanks with
heating system. The ship's shell plating is not to be boundary of such tanks.
A 1200 Cargo pmnp temperature sensors
1201 Temperature sensors should be used to monitor the
cargo pump temperature to detect overheating due to pump
failure
B. Additional Requirements for Certain Groups
of Cargoes
B 100
Acids
101 No electrical equipment or other sources of ignition
are permitted in enclosed spaces adjacent to cargo tanks.
102 The ship's shell plating is not to form any boundaries
of tanks containing mineral _acids.
103 Materials of construction of the tanks are to be approved in each case.
104 Unless constructed completely of corrosion-resistant
materials or fitted with an approved lining, the plating
thickness is to take into account the-· corrosiveness of the
cargo.
105 Flanges of the loading and discharge manifold connections are to be provided with shields which may be
portable to guard against the danger· of the cargo heing
sprayed. Drip trays are to be provided to guard against
leakage on to the deck.
106 Means for detecting leakage of cargo into adjacent
spaces are to be provided.
705 lnerting arrangements where used with flammable
cargoes are to be such as to minimise the creation of static
electricity during the admission of the inerting media.
107 Bilge pumping arrangements and drainage arrangements in pump rooms are to be of corrosion resistant materials.
A 800
B 200 Cargoes which have a vapour
than 1,015 bar at 37,8°C
Moisture control (Drying)
pressur~
greater
801 The cargo tank vapour space and associated piping
systems are to be filled and maintained with a moisture free
gas or vapour which will prevent the access of water or
water vapour to the cargo. For the purpose of this paragraph, .:moisture free»> gas or vapour is that which has a
dewpoint of -40°C or below at atmosplieric pressure.
201 Unless the tank. is designed to withstand the vapour
pressure of the e:argo, provisions are to be made to maintain
the temperature of the cargo below its boiling point at atmospheric pressure.
802 Where dry nitrogen is used as the medium, similar
arrangements for supply of the drying medium is to be made
as required in 702, 703 and 705 above. Where drying agents
are .used as the drying medium on all air inlets to the tank,
sufficient media is to be carried for the duration of the voyage taking into consideration the diurnal temperature range
and the expected humidity.
203 Each tank is to be provided with a pressure gauge indicating the pressure in the vapour space above the cargo.
A 900
C. Additional Requirements for Certain Chemicals
Cargo pmnps in tank
901 Cargo pumps are to be located in the cargo tank or the
cargo pump room is to be located on the weather deck level.
Special consideration by the Society is required for other
locations of the pump room.
202 Valved connections for returning gas ashore during
loading are to be provided.
204 Where the cargo is being cooled, each tank is to be
provided with thermometers at the top and bottom of the
tank.
C 100
Ammonimn nitrate solufion, 93 % or less
101 The ammonium nitrate solution should contain at least
7 % by weight of water. The acidity (pH) of the cargo when
diluted with ten parts of water to one part of cargo by weight
should be between 5,0 and 7,0. The solution should not
DET NORSKE VERITAS
Rules for Ships , July 1999
Page 32 -
Pt.5 Ch.4 Sec. 15
contain more than 10 ppm chloride ions, 10 ppm ferric ions,
and should be free of other contaminants.
102 Tanks and equipment for ammonium nitrate solution
are to be independent of tanks and equipment containing
other cargoes or combnstible products. Equipment which
may in service, or when defective, release combustible products into the cargo, e.g. lubricants, should not be used.
Tanks should not be used for seawater ballast.
103 The temperature of the heat exchanging medium in the
tank heating system is not to exceed 160°C. The heating
system is to be provided with a control system to keep the
cargo at a bulk mean temperature of 140°C. High-temperature alarms at 145°C and 150°C and a low-temperature
alarm at 125°C is to be provided. Where the temperature
of the heat exchanging medium exceeds 160°C an alarm
should also be given. Temperature alarms and controls are
to be located on the navigating bridge.
104 A fixed installation should be provided to inject ammonia gas into the cargo. Controls for this system should
be located on the navigating bridge. For this purpose, 300
kg of ammonia per 1000 tonnes of ammonium nitrate solution should be available on board.
105 Cargo pumps should be of the centrifugal deepwell
type or of the centrifugal type with water flushed seals.
106 Vent piping should be fitted with approved weatherhoods to prevent clogging. Such weatherhoods should be
accessible for inspection and cleaning.
C 200
Carbon disulphide
C 300 Diethyl ether
301
Unless inerted, natural ventilation is to be provided
for the voids around the cargo tanks '?'hile the vessel is under way. If a mechanical ventilation system is installed, all
blowers are to be of non-sparking construction. Mechanical
ventilation equipment is not to be located in the void spaces
surrounding the cargo tanks.
302 Pressure relief valve settings are not to be less than
0,2 bar.
303
Inert gas displacement may be used for discharging
cargo from pressure vessel tanks provided the cargo system
is designed for the expected pressure.
304 No electrical equipment except for approved lighting
fixtures are to be installed in enclosed spaces adjacent to
cargo tanks. Lighting fixtures are to be approved for use in
diethyl ether vapours. The installation of electrical equipment on the weather deck is to comply with the requirements
of Sec.12.
305 In view of the fire hazard provisions are to be made
to avoid any ignition source and/or heat generation in the
cargo area.
306 Pumps may be used for discharging cargo provided
that they are of a type designed to avoid liquid pressure
against the shaft gland or are of a submerged type and are
suitable for use with the cargo.
307 Provisions are to be made to maintain the inert gas pad
in the cargo tank during loading, unloading and during
transit.
201 Means are to be provided to maintain a water pad in
the cargo tank during loading, unloading and during transit.
In addition, means are to be provided to maintain an inert
C 400 Hydrogen peroxide solutions of 60% but not
over 70%
gas pad in the ullage space during transit.
icated ships only and no other cargoes are to be carried.
202 All openings are to be in the top of the tank above the
deck.
204 A standard ullage opening is to be provided for
emergency sounding.
402 Cargo tanks and associated equipment are to be either
pure aluminium (99,5%) or solid stainless steel (304L, 316,
316L or 316Ti), and passivated in accordance with approved
procedures. Aluminium is not to be used for piping on deck.
All nonmetallic materials of construction for the containment
system neither to be attacked by hydrogen peroxide nor
contribute to its decomposition.
205 Cargo piping and vent lines are to be independent of
piping and vent lines used for other cargoes.
403 Pump rooms are not to be used for cargo transfer operations.
206 Pumps may be used for discharging cargo provided
they are of the deepwell or submersible types. The means
of driving a deepwell pump should not present a source of
ignition for carbon disulphide and should not employ
equipment that may exceed a temperature of 80°C. Submersible pumps should be electrically interlocked so that the
motor is de-energised before it could present a source of
ignition to the cargo vapour space.
404 Cargo tanks are to be separated by cofferdams from
oil fuel tanks or any other space containing flammable or
combustible materials.
203 Loading lines are to terminate near the bottom of the
tank.
207 If a cargo discharge pump is used, it is to be inserted
through a cylindrical well extending from the tank top to a
point near the tank bottom. A blanket of water should be
formed in this well before attempting pump removal unless
the tank has been certified as gas-free.
208 Water or inert gas displacement may be used for discharging cargo provided the cargo system is designed for the
expected pressure and temperature.
209
Safety relief valves are to be of stainless steel con-
struction.
210 Because of its low ignition temperature and close
clearances required to arrest its flame propagation, carbon
disulphide requires special safeguard for electrical equipment which will be considered in each case.
401
Hydrogen peroxide solutions are to be carried in ded-
405 Temperature sensors are to be installed at the top and
bottom of the tank. Remote temperature readouts and continuous monitoring shall be located on the navigating bridge.
If the temperature in the tanks rises above 35°C, visible and
audible alarms are to be activated on the navigating bridge.
406 Fixed oxygen monitors (or gas sampling lines) are to
be provided in void spaces adjacent to tanks to detect leakage of the cargo into these spaces. Remote readouts, con-
tinuous monitoring (if gas sampling lines are used,
intermittent sampling is satisfactory) and visible and audible
alarms similar to those for the temperature sensors shall also
be located on the navigating bridge. The visible and audible
alarms are to be activated if the oxygen monitors shall also
be available as back-up systems.
407
As a safeguard against uncontrolled decomposition, a
cargo jettisoning system is to be installed to discharge the
cargo overboard. The cargo should be jettisoned if the temperature rise of the cargo exceeds a rate of 2°C per hour
over a 5-hour period or when temperature in the tank exceeds 40°C.
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Rules for Ships , July 1999
Pt.5 Ch.4 Sec.15 -
408
Cargo tank venting system is to have pressure/ vac-
uum relief valves for normal controlled venting, and rupture
discs or a similar device for emergency venting, should tank
pressure rise rapidly as a result of uncontrolled decomposition. Rupture discs shall be sized on the basis of tank design
pressure, tank size and anticipated decomposition rate.
409 A fixed water-spray system shall be provided for diluting and washing away any concentrated hydrogen peroxide solution spilled on deck. The areas covered by the
water-spray are to include the manifold/hose connections
and the tank tops of those tanks designated for carrying hydrogen peroxide solutions.
The minimum application rate shall satisfy the following
criteria:
-
The product shall be diluted from the original concentration to 35 % by weight within 5 min. of the spill.
- The rate and estimated size of the spill shall be based
upon maximum anticipated loading and discharge rates,
the time required to stop flow of cargo in the event of
tank overfill or a piping/hose failure, and the time necessary to begin application of dilution water with actuation at the cargo control location or on the navigating
bridge.
C 500 Hydrogen peroxide solutions over 8% but not
·
over 60%
501 Only those hydrogen peroxide solutions which have a
Page 33
over a 5-hour period or when the temperature in the tank
exceeds 40°C.
508 Cargo tank venting systems with filtration are to have
pressure vacuum relief valves foi' normal controlled venting,
and a device for emergency venting; should tank pressure
rise rapidly as a result of an uncontrolled decomposition
rate. These venting systems are to be designed in such a
manner that there is no introduction of sea water into the
cargo tank even under heavy sea conditions. Emergency
venting is to be sized on the basis of tank design pressure
and tank size.
509 A fixed water-spray system is to be provided for diluting and washing away any concentrated solution spilled
on deck. The areas covered by the water-spray should include the manifold/hose connections and the. tank tops of
those tanks designated for the carriage of hydrogen peroxide
solutions. The minimum application rate should satisfy the
following criteria:
-
The product is to be diluted from the original concentration to 35 % by weight within five minutes of the spill.
- The rate and estimated size of the spill should be based
upon maximum anticipated loading and discharge rates,
the time required to stop flow of cargo in the event of
tank overfill or a piping/hose failure, and the time necessary to begin application of dilution water with actuation at the cargo control location or on the navigating
bridge.
maximum decomposition rate of 1,0% per year at 25°C are
510
allowed to be carried.
502 The ship's shell plating is not to form any boundaries
of tanks containing this product.
The design of cargo tanks is to be such as to provide minimum internal tank structure, free drainage, no entrapment
and ease of visual inspection.
503 Cargo tanks and associated equipment should be either
pure aluminium (99 ,5 %) or solid stainless steel of types
suitable for use with hydrogen peroxide. Aluminium is not
to be used for piping on deck. All non-metallic materials of
construction for the containment system are neither to be
attacked by hydrogen peroxide nor contribute to its decomposition.
During transfer of hydrogen peroxide the related pip-
ing system is to be separate from all other systems. Cargo
hoses used for transfer of hydrogen peroxide transfer only.
C 600 Phosphorus, yellow or white
601 The cargo tanks are to be placed inboard from the
ship's side at a minimum distance of B/5 measured at the
level of the load line.
602
Phosphorus is, at all time, to be loaded, carried and
discharged under a water blanket of 760 mm minimum
depth. During discharge operations it is to be arranged that
water occupies tbe volume of phosphorus discharged.
603 Tanks are to be designed so as to minimize the inter-
504 Cargo tanks are to be separated by a cofferdam from
facial area between liquid phosphorus and its water blanket.
fuel oil tanks or any other space containing materials incompatible with hydrogen peroxide.
604 A minimum ullage space of 1 % is to be maintained
505 Temperature sensors are to be installed at the top and
bottom of the tank. Remote temperature readouts and continuous monitoring should be located on the navigating
bridge. If the temperature in the tank rises above 35°C, visible and audible alarms are to be activated on the navigating
bridge.
506 Fixed oxygen monitors (or gas sampling lines) are to
be provided in void spaces adjacent to tanks to detect leakage of the cargo into these spaces. The enhancement of
flammability by oxygen enrichment should be recognized.
Remote readouts, continuous monitoring (if gas sampling
lines are used, intermittent sampling is satisfactory) and vi-
sible and audible alarms similar to those for the temperature
sensors should also be located on the navigating bridge. The
visible and audible alarms should activate if the oxygen
concentrations in these void spaces exceed 30 % by volume.
Two portable oxygen monitors are also to be available as
back-up systems.
507 As a safeguard against uncontrolled decomposition, a
cargo jettisoning system is to be installed to discharge the
cargo overboard. The cargo should be jettisoned if the temperature rise of the cargo exceeds a rate of 2°C per hour
above the water blanket and is to be filled with inert gas if
phosphorus is carried in the liquid form.
605
All openings are to be at the top of cargo tanks and
fittings and joints attached thereto are to be of materials resistant to phosphorus pentoxide.
606 Phosphorus is to be loaded at a temperature not exceeding 60°C.
607 Tank heating arrangements are to be external to tanks
and an automatic temperature control system for the cargo
is to be fitted in order to ensure that the temperature of the
phosphorus does not exceed 60 ° C.
608
A water drench system is to be installed in all void
spaces surrounding the tanks.
609 Void spaces, referred to in 608, are to be provided
with effective means of mechanical ventilation which is. to
be capable of being sealed off quickly in an emergency.
610 Loading and discharge of phosphorus is to be governed by a centrally operated system which, in addition to
including high level alarms, is to ensure that no overflow
of tanks is possible and that such operations can be stopped
quickly in an emergency from either ship or shore.
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Pt.5 Ch.4 Sec.15
611 During cargo transfer, a water hose on deck is to be
connected to a water supply and kept flowing throughout the
operation so that any spillage of phosphorus may be washed
down with water immediately.
612 Ship to shore loading and discharge connections are
to be approved by the Society.
C 700 Propylene oxide and mixtures· of ethylene oxide/
propylene oxide with ethylene oxide content of not more
than 30% hy weight
701 Propylene oxide transported under the provisions of
this section is to be acetylene free.
702 Tanks for the carriage of propylene oxide are to be
of steel or stainless steel construction.
703
!) All valves, flanges, fittings and accessory equipment are
to be of a type suitable for use with propylene oxide and
are to be constructed of steel or stainless steel or other
material acceptable to the Society. The chemical composition of all material used should be submitted for approval prior to fabrication. Discs or disc faces, seats and
other wearing parts of valves are to be made of stainless
steel containing not less than 11 % chromium.
708 The cargo may be discharged only by deepwell
pumps, hydraulically operated submerged pumps, or inert
gas displacement. Each cargo pump is to be arranged to
ensure that the oxide does not heat significantly if the discharge line from the pump is shut off or otherwise blocked.
709 Cargo hoses used for transfer of these products are to
be marked:
FOR ALKYLENE OXIDE TRANSFER ONLY
710 Cargo tanks, void spaces and other enclosed spaces,
adjacent to an integral gravity cargo tank, shall either contain a compatible cargo or be inerted by injection of a suitable inert gas. Any enclosed space in which an independent
cargo tank is located is to be inerted. Such inerted spaces
and tanks are to be monitored for propylene oxide and oxygen. The oxygen content of these spaces is to be maintained
below 2%.
711 1n no case is air to be allowed to enter the cargo pump
or piping system while these products are contained within
the system.
712 Prior to disconnecting shore-lines, the pressure in liquid and vapour lines is to be relieved through suitable valves
installed at the loading header. Liquid and vapour from these
lines are not to be discharged to atmosphere.
Propylene oxide may be carried in pressure tanks
2) Gaskets are to be constructed of materials which do not
react with, dissolve in or lower the auto-ignition temperature of these products and which are frre resistant and
possess adequate mechanical behaviour. The surface
presented to the cargo is to be polytetrafluoroethylene
(PTFE) or materials giving a similar degree of safety by
their inertness. Spirally-wound stainless steel with a filler
of PTFE or similar fluorinated polymer will be accepted.
713
3) Insulation and packing, if nsed, is to be of a material
which does not react with, dissolve in, or lower the
auto-ignition temperature of these products.
!) Cargo tanks with a design pressure less than 0,6 bar
4) The following materials are generally found unsatisfactory for gaskets, packing and similar uses in containment
systems for these products and would require testing before being approved.
Neoprene or natural rubber if it contacts propylene
oxide.
- Asbestos or binders used with asbestos.
- Materials containing oxides of magnesium, such as
rrrineral wools.
-
704 Threaded joints are not permitted in the cargo liquid
and vapour lines.
705 Filling and discharge piping are to extend to within
I 00 mm of the bottom of the tank or any sump pit.
706
I) The containment system for a tank containing these products is 'to have a valved vapour return connection.
2) The products are to be loaded and discharged in such a
manner that venting of the tanks to atmosphere does not
occur. If vapour return to shore is used during tank
loading, the vapour return system connected to a propylene oxide containment system for these products is to
be independent from all other containment systems.
3) During discharging operations, the pressure in the cargo
tank must be maintained above 0.07 bar gauge.
707 Tanks carrying these products are to be vented independently of tanks carrying other products. Facilities are to
be provided for sampling the tank contents without opening
the tank to the atmosphere.
DET
(a4) or in independent (a3) or in integral (a2) gravity tanks.
Ethylene oxide/propylene oxide mixtures are to be carried
in independent gravity tanks (a3) or in pressure tanks (a4).
Tanks are to be designed for the maximum pressure expected to be encountered during loading, conveying and
discharging cargo.
714
gauge and tanks for the carriage of ethylene oxide/ propylene oxide mixtures with a design pressure less than
1,2 bar gauge are to have a cooling system to maintain
the propylene oxide below the reference temperature (See
Sec. I Bll8).
2) The refrigeration requirement for tanks with a design
pressure less than 0,6 bar gauge may be waived by the
Society for ships operating in restricted areas or in voyages of restricted duration and account may be taken in
such cases of any insulation of the tanks. The area and
times of year where and for which such carriage would
be permitted will be included in the conditions of carriage
in the Appendix to the Classification Certificates.
715
!) Any cooling system shall maintain the liquid temperature
below the boiling temperature at the containment pressure. At least two complete cooling plants automatically
regulated by variations within the tanks are to be provided. Each cooling plant is to be complete with the necessary auxiliaries for proper operation. The control
system is also to be capable of being manually operated.
An alarm is to be provided to indicate malfunctioning of
the temperature controls. The capacity of each cooling
system is to be sufficient to maintain the temperature of
the liquid cargo below the reference temperature (see
Sec. I B118) of the system.
2) An alternative arrangement may consist of three cooling
plants, any two of which are to be sufficient to maintain
the liquid temperatures below the reference temperature.
3) Cooling media which are separated from the products by
a single wall only is to be non-reactive with the propylene
oxide.
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Rules for Ships , July 1999
Pt.5 Ch.4 Sec.15 - Page 35
4) Cooling systems requiring compression of propylene oxide are not to be used.
716 Pressure relief valve settings are not to be less than
0,2 bar gauge, nor greater than 7 ,0 bar gauge for pressure
tanks intended for the carriage of propylene oxide and not
greater than 5,3 bar for the carriage of propylene
oxide/ethylene oxide mixtures.
717
1) The piping system for tanks to be loaded with these products is to be completely separate from piping systems
for all other tanks, including empty tanks, and from all
cargo compressors. If the piping system for the tanks to
be loaded is not independent as defined in Sec.! Bl 16,
the required piping separation is to be accomplished by
the removal of spool pieces, valves, or other pipe_ sections, and the installation of blank flanges at these locations. The required separation applies to any other
possible connections such as common inert gas supply
lines.
2) These products may be transported only in accordance
with cargo handling plans that have been approved by the
Society. Each intended loading arrangement is to be
shown on a separate cargo handling plan. Cargo handling plans are to show the entire cargo piping system and
the locations for installation of blank flanges needed to
meet the above piping separation requirements. A copy
of each approved cargo handling plan is to be maintained
on board the ship.
Guidance note:
When a ship carries propylene oxide or mixtures of ethylene
oxide/propylene oxide under IMO's Certificate of Fitness, the
Administration or delegated body issuing the Certificate will be
required to include a reference to the approved cargo handling
plans in the Certificate.
---e-n-d---o-f---G-u-i-d-a-n-c-e---n-o-t-e---
3) Before loading propylene oxide, certification verifying
that the required piping separation has been achieved is
to be obtained from a representative of the Society and
carried on board the ship. Each connection between a
blank flange and pipeline flange is to be fitted with a wire
and seal by the Society's representative to ensure that
inadvertent removal of the blank flange is impossible.
718 The maximum allowable tank filling limits for each
cargo tank are to be indicated for each loading temperature
which may be applied and for the applicable maximum reference temperature, on a list to be approved by the Society.
A copy of the list is to be permanently kept on board by the
master.
719 The cargo is to be carried under a suitable protective
padding of nitrogen gas. An automatic nitrogen make-up
system is to be installed to prevent the tank pressure falling
below 0,07 bar gauge in the event of product temperature
fall due to ambient conditions or maloperation of refrigeration systems. Sufficient nitrogen is to be available on board
to satisfy the demand of the automatic pressure control. Nitrogen of acceptable purity is to be used for padding.
720 The nitrogen system is to be capable of inerting the
tank vapour space to an oxygen content of less than 2 per
cent prior to loading and maintaining this content during the
voyage.
721 A water-spray system is to be provided in the area
where loading and unloading operations are conducted. The
capacity and arrangement is to be such as to blanket effectively the area surrounding the loading manifold and the
exposed deck pipework associated with product handling.
The arrangement of piping and nozzles is to be such as to
give a uniform distribution over the entire area protected at
a discharge rate of 10 l/m2/min. _Remote manual operation
should be arranged such that remote starting of pumps supplying the water spray system and remote operation of any
normally closed valves in the system can be carried out from
a suitable location outside the cargo area, adjacent to the
accommodation spaces and readily accessible and operable
in the event of fire in the areas protected. The water-spray
system is to be capable of both local and remote manual
operation and the arrangement is to ensure that any spilled
cargo is washed away. Additionally, a water hose with
pressure to the nozzle, when atmospheric temperatures permit, is to be connected ready for immediate use during
loading and unloading operations.
722 A remote operational, controlled closing-rate shut-off
valve is to be provided at each cargo hose connection used
during cargo transfer.
C 800 Sulphuric acid
801 The following sulphuric acids will be accepted for the
carriage in unlined mild steel tanks:
- 96% (66° Be) or higher concentrations.
- 78 % (60° Be) or higher with or without an inhibitor,
provided the corrosive effect on mild steel at 25'C is not
higher than that of 96% (66' Be) commercial sulphuric
acid.
- spent sulphuric acid from industrial processes, provided
the corrosive effect is not higher than that stated above.
802 Sulphuric acid of other qualities and concentrations
than stated in 801, is to be carried in tanks lined or made
from suitable acid-resistant materials. These will be subject
to special consideration by the Society.
803 Cargo pumps, piping and valves made from nodular
cast iron, will be accepted for the following sulphuric acids:
- 65% (51,7° Be) or higher concentrations.
- spent sulphuric acid from industrial processes, provided
the corrosive effect' is not higher than that stated above.
804 PN-valves and vent pipes from the cargo tank are to
be made of or protected by acid-resistant materials. Vent
pipes to unprotected cargo tanks are to extend about 50 mm
into the tank.
805 Drip pans are to be provided below pump glands and
at shore connections.
806 The bilge piping and pumping system in pump rooms
are to be made of or lined with corrosion-resistant material.
C 900 Sulphur liquid
901 Cargo tank ventilation is to be provided to maintain
the concentration of H 2S below one half of its lower explosive limit throughout the cargo tank vapour space for all
conditions of carriage, i.e. below 1,85% by volume.
902 Where mechanical ventilation systems are used for
maintaining low gas concentrations in cargo tanks, ventilation failure alarm is to be provided.
903 Ventilation systems are to be designed and arranged
to preclude depositing of sulphur within the system.
904 Openings to void spaces adjacent to cargo tanks are
to be designed and fitted to prevent the entry of water,
sulphur or cargo vapour.
905 Connections are to be provided to enable sampling
and analysis of vapour in void spaces.
906 An automatic temperature control system for the cargo
is to be fitted in order to ensure that the temperature of the
sulphur does not exceed 155'C.
DET NORSKE VERITAS
Rules for Ships , July 1999
Page 36 - Pt.5 Ch.4 Sec. 15
A high temperature alarm is to be fitted.
1002 The cargo may not be carried in independent pressure
vessels permanently affixed to the vessel's deck unless:
C 1000 Alkyl (C 7 - C9) nitrates
1001 The carriage temperature on the cargo should be
I) the tanks are sufficiently insulated from fire, and
2) the vessel has a water deluge system for the tanks such
that the cargo temperature ts maintained below 100°C
and the temperature rise in the tanks does not exceed
l,5°C/hour for a fire of 650°C.
maintained below 100°C to prevent the occurrence of a
self-sustained, exothermic decomposition reaction.
DET NORSKE VERITAS
Rules for Ships , July 1999
Pt.5 Ch.4 Sec.16 -
Page 37
SECTION 16
INERT GAS PLANTS
Contents
2) A lower capacity of the system than that required by Ch. 3
Sec.11 D!OO may be accepted on the condition that the
cargo discharge rate from tanks being protected is restricted to 80 % of the inert gas capacity. An entry to this
effect will be made in the "Appendix to the classification
certificate".
A. General
A 100
A 200
Application
Documentation
B. Materials, Arrangement and Design
B 100
B 200
B 300
General
Inert gas systems based on other means than combustion
of hydrocarbons
Nitrogen inert gas systems fitted for other purposes
B 200 Inert gas systems based on other means than
combustion of hydrocarbons
A. General
A 100 Application
101 Chemical tankers of deadweight in excess of 20,000
tons having individual cargo tanks exceeding 3000 m3 or
cargo tanks fitted with washing machines with a nozzle capacity exceeding 17 ,5 m 3/h or a total through put per tank
of 110 m3 /h are to be fitted with an inert gas system complying with the rules in Ch. 3 Sec.11, if the vessel is intended
for carriage of chemicals with flash point less than 60°C.
Guidance note:
Chemical tankers when transporting oil with flashpoint less than
60°C are to comply with the inert gas requirements of SOLAS
Reg. 11-2/60.
---e-n-d---o-f---G-u-i-d-a-n-c-e---n-o-t-e---
A 200
Documentation
201 Documentation in accordance with Ch.3 Sec.11 is to
be submitted for approval.
B. Materials, Arrangement and Design
B 100
102 An inert gas system based on production of inert gas
by other means than combustion of hydrocarbons may be
accepted upon special considerations.
General
101
Inert gas systems are to satisfy the requirements of
Ch. 3 Sec.11 C602 to the extent these requirements are applicable. Alternative solutions to specific requirements in
above rules may be accepted as follows:
I) The water seal required by Ch.3 Sec. I I C602 may be
replaced by an alternative arrangement consisting of two
automatically operated shut-off valves in series with a
venting valve in between (double block and bleed). The
following conditions apply:
- The operation of the valve is to be automatically executed. Signals for opening/closing are to be taken
from the process directly, e.g. inert gas flow or differential pressure.
- An alarm for faulty operation of the valves is to be
provided, e.g. the operational status of "Blower stop"
and "Supply valve(s) open" is an alarm condition.
201 The requirements of 200 are specific for the gas generator system and apply when inert gas is produced by
passing compressed air through hollow fibres, semi-permeable membranes or adsorber materials.
202 The system is to be provided with at least two air
compressors.
203 The air compressor and the nitrogen generator may
be installed in the engine room or in a separate compartment. A separate compartment is to be treated as one of
other machinery spaces with respect to fire protection.
204 Where a separate compartment is provided, it is to be
positioned outside the cargo area and is to be fitted with an
independent mechanical extraction ventilation system, providing 6 air changes per hour. A low oxygen alarm is to be
fitted. The compartment is to have no direct access to accommodation spaces, service spaces or control stations.
205 Where fitted, a nitrogen receiver or buffer tank may
be installed in a dedicated compartment or in the separate
compartment containing the air compressor and the generator, or may be located in the cargo area. Where the nitrogen
receiver or buffer tank is installed in an enclosed space, the
access is to be arranged only from the open deck and the
access door is to open outwards. Permanent ventilation and
alarm are to be fitted as required in 204.
206 Nitrogen separating systems that may be destroyed by
high temperature in the supply air are to be arranged with
an alarm and automatic shutdown of the system upon alarm
conditions.
B 300
Nitrogen inert gas systems fitted for other
purposes
301 If an inert gas system is fitted for other applications
than stated in AlO 1, the requirements in 200 apply. However, only one air compressor is required and a permanent
recording of the parameters in Ch. 3 Sec.11 E202 is not
mandatory.
302 Where the connections to the hold spaces or to the
cargo piping are not permanent, two non-return valves may
substitute the non-return devices required in Ch.3 Sec.11
C602 and C603.
(!ACS URF20)
DET NORSKE VERITAS
Rules for Ships , July 1999
Page 38 - Pt.5 Ch.4 Sec. 17
SECTION 17
PERSONNEL PROTECTION
Contents
and
4) explosion-proof lamp.
A. General Requirements
A 100
Protective equipment
103 For the safety equipment required in 101, all ships are
to carry the following, either:
B. Safety Equipment
B 100 Safety equipment
1) one set of fully charged spare air bottles for each breathing apparatus;
C. Medical First-aid Equipment
C 100 General
2) a special air compressor suitable for the supply of high-
D. Decontamination Showers and Eye Washes
D 100 General
pressure air of the required purity;
3) a charging manifold capable of dealing with snfficient
spare breathing apparatus air bottles for the breathing
apparatus;
or
A. General Requirements
A 100 Protective equipment
101 For the protection of crew members who are engaged
in loading and discharging operations, the ship is to have
on board suitable protective equipment consisting of large
aprons, special gloves with long sleeves, suitable footwear,
coveralls of chemical-resistant material, and tight-fitting
goggles or face shields or both. The protective clothing and
equipment should cover all skin so that no part of the body
is unprotected.
Guidance note:
The number of protective clothing is normally to be a minimum
of six (6) sets.
---e-n-d---o-f---G-u-i-d-a-n-c-e---n-o-t-e---
102 Work clothes and protective equipment are to be kept
in easily accessible places and in special lockers. Snch
equipment should not be kept within accommodation spaces,
with the exception of new, unused equipment and equipment
which has not been used since undergoing a thorough cleaning process. Storage rooms for such equipment may,
however. upon special consideration be approved within
accommodation spaces if adequately segregated from living
spaces such as cabins, passageways, dining rooms, bathrooms, etc.
B. Safety Equipment
B 100
Safety equipment
101 Ships carrying cargoes for which reference to Sec.IS
A300 or A400 are listed in the List of Cargoes, are to have
on board sufficient, but not less than three complete sets of
safety equipment each permitting personnel to enter a gas
filled compartment and perform work there for at least 20
min. Such equipment is to be in addition to that required by
regulation II-2117 of the SOLAS Convention, as amended.
102
One complete set of safety equipment is to consist of:
I) One selkontained air-breathing apparatus (not using
stored oxygen),
2) protective clothing, boots, gloves and tight-fitting goggles,
3) fireproof lifeline with belt resistant to the cargoes carried,
4) fully charged spare air bottles with a total free air capacity
of at least 6,000 1 for each breathing apparatus on board
in excess of the requirements of regulation Il-2117 of the
SOLAS Convention, as amended.
104 A cargo pump-room on ships carrying cargoes which
are subject to the requirements of Sec. 15 A900 or cargoes
for which in the List of Cargoes toxic vapour detection
equipment is required, but is not available should have either:
1) a low-pressure line system with hose connections suitable
for use with the breathing apparatus required by IOI.
This system should provide sufficient high-pressure air
capacity to supply, through pressure reduction devices,
enough low-pressure air to enable two men to work in a
gas-dangerous space for at least 1 h without using the air
bottles and breathing apparatus air bottles from a special
air compressor suitable for the supply of high-pressure
air of the required purity;
or
2) an equivalent quantity of spare bottled air in lieu of the
low-pressure air line.
105 At least one set of safety equipment as required by
102 should be kept in a suitable clearly marked locker in a
readily accessible place near the cargo pump-room. The
other sets of safety equipment should also be kept in suitable, clearly marked, easily accessible, place.
106 A stretcher which is suitable for hoisting an injured
person up from spaces such as the cargo pump-room is to
be placed in a readily accessible location.
107 Ships intended for the carriage of certain cargoes are
to be provided with suitable respiratory and eye protection
sufficient for every pers6n on board for emergency escape
purposes, subject to the following:
I) self-contained breathing apparatus should normally have
a duration of service of at least 15 min:
2) emergency escape respiratory protection should not be
used for fire-fighting or cargo handling purposes and
should be marked to that effect.
Individual cargoes to which the provisions of this paragraph
apply are indicated in the List of Cargoes.
DET NORSKE VERITAS
Rules for Ships , July 1999
Pt.5 Ch.4 Sec.17 -
C. Medical First-aid Equipment
Page 39
of the IBC Code are given in the Index of Dangerous Chemicals
Carried in Bulk.
--e-n-d--o-f---G-u-i-d-a-n-c-e---n-o-t-e---
C 100 General
101 The ship is to have on board medical first-aid equipment including oxygen resuscitation equipment and antidotes
for cargoes carried.
D. Decontamination Showers and Eye Washes
Guidance note:
D 100 General
Reference is made to the Medical First Aid Guide for Use in
Accidents Involving Dangerous Goods (MFAG) which includes
the MFAG numbers of products covered by the Code and the
emergency procedures to be applied in the event of an incident.
MFAG numbers related to products listed in chapters 17 and 18
101 Suitably marked decontamination showers and eyewashes are to be available on deck in convenient locations.
The showers and eyewashes are to be operable in all ambient
conditions.
DEr NORSKE VERITAS
Rules for Ships , July 1999
Page 40 - Pt.5 Ch.4 App.A
APPENDIX A
LIST OF CARGOES -TANKER FOR CHEMICALS
Contents
A. General
A. General
A 100 List of cargoes
A 100
101 This list is meant to provide a summary of some minimum constructional and operational requirements to the
specific cargoes listed. The requirements are defined by the
register information and the summary of special require-
List of cargoes
ments.
Abbreviations:
Ship type (See Sec.3):
D:
Tank type: (See Sec.!)
Cargo tank material:
Gauging system: (See Sec.13)
Tank vent system: (See Sec. 9)
Ventilation system: (See Sec.10)
Overflow control: (See Sec.13)
Cargo stripping efficiency: (See Sec.6)
Fire protection
Vapour hazard
Dash,
Note:
«-«,
Ship type 1
Ship type 2
Ship type 3
Damage stability standard
in accordance with
IMO's International Chemical Code.
Liquid density (kg/m::I), except where a temperature is
indicated, the density is given for 20°C.
a1: integral tank type a1 (single skin).
a2: integral tank type a2 (double skin).
a3: independent tank type a3 (atmospheric).
a4: independent tank type a4 (pressure).
ss: identifies tanks made of stainless steel, clad or solid.
b1: open.
b2: restricted.
b3: closed.
b4: indirect.
c1: open venting
c2: outlet 4 metres above deck.
c3: outlet B/3 above deck.
v2: 30 air changes/hour.
v3: 45 air changes/hour.
f1: High level alarm.
f2: High-high level alarm.
str0.1: residue quantity not in excess of 0, 1 m3.
str 0.3: residue quantity not in excess of 0,3 m3.
A: Alcohol foam deck system.
B: Regular foam deck system.
C: Water spray.
D: Dry chemical.
F: Flammable vapours.
T: Toxic vapours.
indicates nil requirement.
Attention is drawn to the 9th set of amendments to the IMO Bulk Chemical Code Res. A.212(VII) according to which alcohol foam will be the basic fire
fighting medium for all cargoes. Dry chemical powder will not be accepted as an al tentative neither to alcohol foam nor regular foam. This applies to
ships which are new ships relative to the amendment.
In this list prefixes are shown either in normal type, with capital letters, where the prefix forms an integral part of the name,
(a) below, or in small letters with a hyphen, where the snbstance name is entered without regard to its prefix, (b) below.
Some common prefixes and the manner in which they are used are shown below:
a) MONO DI TRI TETRA PENTA ISO BIS etc.
b) n-,
sec-,
tert-,
o-,
m-,
p-,
or normalor secondaryor tertiaryor orthoor metaor para-
neo-,
sym-,
uns-,
trans-,
aor alpha
or beta
P-
DET NORSKE VERITAS
..
Name and chemical formula
0
~
I
~
~
Ship
type
D
Tank Gauging
type
system
1050
a1
1080
a2
VentiTank
vent
lation
system system
Overflow
Cargo
stripping
control
Electrical equipment
Fire
Vapour
protec- hazard
Class
Group
A
A
b2
c2
v2
11
Tl
II A
b2
c2
v2
11
T2
II A
tion
ACETIC ACID
CH3COOH
3
ACETIC ANHYDRIDE
(CH3CO)z0
2
ACETONE CYANOHYDRIN
(inhibited)
(CH3)2C(OH)CN
2
930
a2
b3
c3
v3
12
Tl
II A
A
T
ACETONITRILE
CH,CN
ACRYLAMIDE SOLUTION
(inhibited)
(50% or less)
CH0 CHCONH0
ACRYLIC ACID (inhibited)
CH0 CHCOOH
ACRYLONITRILE (inhibited)
CH2CHCN
ADIPONITRILE
CN(CHol,CN
2
780
a2
b2
c3
v3
11
T2
II A
A
F
2
1048
a2
b3
c2
v2
11
3
1060
a1
b2
c2
v2
11
No
II A
A
F
Sec.7 A107
Sec.15 A207 A300
8103-107
Sec.17 8107
Sec.15 A207 A300
8103-107
Sec.17 8107
Stabilized during
transport
Sec.15 A207
A300 A400
A900 AlOOO
Sec.17 8107
Sec.15 A300 A400
Sec.17 8107
Sec.15 A300
A400 A501
Sec.15 A207
T
2
810
a2
b3
c3
v3
12
950
a1
b2
c2
v2
ALACHLOR TECHNICAL
(90% or more)
3
1130
a2
b1
c1
v2
11
ALCOHOL (C)r - C+JisPOLY
(1 - 6) ETHO YLA
2
900
a2
b1
c1
v2
11
ALCOHOL (CQ)c- c 1 POLY
(7 - 19) ETH
YLA ES
ALCOHOL (C - C )
POLY(20+)ETHoxllLATES
3
about
a1
b1
c1
v2
11
a1
b1
c1
v2
ALCOHOL (Ct- C17)
(secondary) PO Y (3 - 6)
ETHOXYLATES
2
a2
b1
c1
v2
ALCOHOL (Ct- C17)
(secondary) PO Y (7 - 12)
ETHOXYLATES
3
ALKANE (CL4r- C 17) SULFONIC ACID,
SODIUM SA
60-65% IN WATER
ALKANES (C, - Co)
ALKARYL POLYETHERS (Cg - C20)
F
T
3
f
F
T
T2
Remarks
Special requiremen!s
str 0.1
Tl
II 8
II 8
str 0.1
A
F
A
T
T
Sec.15 A204
A300 A400
Sec.15 A207
AllOO
A
c
A
str 0.1
A
str 0.3
A
900
3
about
A
11
;I' ::c
950
01
about
a1
b1
c1
v2
11
str 0.1
A
::r"'
~O'
'
1000
)>
3
a1
3
3
a1
a1
b2
c2
v2
b3
b1
c2
c1
v2
v2
11
11
str 0.1
No
str 0.3
str 0.1
A
A
8
c:
nm
"
~
Cf)
". -c·
::r
)>"'
F
I ;__
-uS.
"'"'-<~
" "'
"'"'
~w
"
-0,,
Name and chemical formula
0
!:J
I
~
Ship
type
D
Tank Gauging
type system
Venti- OverTank
lation
flow
vent
system system control
ALKYL ACRYLATE VINYL
PYRIDINE COPOLYMER IN
TOLUENE
3
900
al
b2
c2
v2
11
ALKYL BENZENE/-INDANE/INDENE MIXTURE (C12 - C17)
TOTAL CARBON
2
about
900
a2
bl
c2
v2
11
ALKYL (C3 - C4) BENZENES
ALKYL (C, - C,) BENZENES
ALKYL BENZENE SULPHONIC
I
ACID
.3
2
3
860
al
a2
al
b2
bl
bl
c2
cl
cl
v2
v2
v2
ALKYL BENZENE SULPHONIC
ACID. SODIUM
SALT SOLUTION
3
al
bl
cl
v2
ALKYL (C7 - C9) NITRATES
2
a2
bl
cl
v2
ALLYL ALCOHOL
CH,CHCH?OH
ALLYL CHLORIDE
CH? CH CH? Cl
ALUMINIUM CHLORIDE (30% or less)/
HYDROCHLORIC ACID (20% or less)
SOLUTION
2- (2-AMINOETHOXY) ETHANOL
NH,CH,CH,OCH,CH,OH
2
850
a2
b3
c3
2
940
a2
b3
3
1170
to 1240
a3
3
I057
AMINOETHYL ETHANOLAMINE
3
I030
N-AMINOETHYLPIPERAZINE
C,H"N'
2-AMIN0-2-METHYL-1-PROPANOL
(90% or less)
AMMONIA (aqueous solution
28% or less)
NH,
3
Cargo
stripping
Electrical equipment
Class
Group
sir 0.3
Fire
Vapour
protec- hazard
ti on
A
"'".,,._""'
I~
~~
a,·
nE-
·::r<
11
11
A
A
B
sir 0.3
No
11
sir 0.1
A
B
v3
12
sir 0.1
T2
II B
A
c3
v3
12
sir 0.1
T2
II A
A
b2
c2
v2
al
bl
cl
v2
11
985
al
al
bl
b2
cl
c2
v2
v2
11
3
950
al
bl
cl
v2
3
900
al
b2
c2
v2
AMMONIUM NITRATE SOLUTION
(93% or less)
2
1600
a3
bl
cl
v2
11
AMMONIUM SULPHIDE SOLUTION
(45% or less)
(NH<iJ2SiH20
2
993
a2
b3
c3
v3
12
AMMONIUM THIOCYANATE
(25% or less)
/AMMONIUM THIOSULPHATE
(20% or less) SOLUTION
3
1100
to
1200
al
bl
c2
v2
about
IOOO
"'~
"'"
p
A
sir 0.3
IOOO
1400
Remarks
Special requirements
.
T2
sir 0.3
II A
...
p
"C " '
"C " '
=i,.
Sec.15 ClOOO
p
T
p
T
Sec.15 A300 A400
Sec.17 BI07
Sec.15 A300 A400
Sec.17 BIO?
No
Sec.15 BIOO
Sec.17 BIO?
A
D
Sec.15 A203
A
Sec.15 A202
A
Sec.15 A202
A
Sec.15 A202
c
T
A
sir 0.3
No
Sec.15 A205 A210
Sec.17 B207
Sec.15 A211
A300 A900
B105 ClOO
No
sir 0.1
~
~"'
p
T
Sec.15 A202 .
A300 A400
.
B202
Sec.17 BIO?
..
~
I
'
Cargo
stripping
Fire
D
AMMONIUM THIOSULPHATE
SOLUTION (60% or Jess)
3
about
1500
a1
b1
cl
v2
AMYL ACETATE (all isomers)
ANILINE
C,H,NH,
AVIATION ALKYLATES
(C 8 paraffins and
iso-paraffins BPT 95 -120°C)
BENZENE (incl. solutions with more
than 10%)
C6H6
BENZENE SULPHONYL CHLORIDE
c,H,so,c1
BENZYL ACETATE
cH,co,cH,c,H,
3
2
880
1020
a1
a2
b2
b3
c2
c3
v2
v3
11
str 0.3
str 0.3
A
F
f2
Tl
II A
A
T
3
700
a1
b2
c2
v2
f1
str 0.3
Tl
II A
B
F
3
880
a1
b3
c3
v3
11
str 0.3
Tl
II A
A
B
T
BENZYL ALCOHOL
BENZYL CHLORIDE (inhibited)
C6 H,CH,Cl
BUTENE OLIGOMER
Tank Gauging
type system
Tank
Overflow
control
Ship
type
Name and chemical formula
Ventilation
system system
vent
Electrical equipment
Class
Group
str 0.3
protecti on
Vapour
hazard
Remarks
Special requirements
No
Sec.15 A300 A400
.
3
1378
a1
b2
c2
v2
11
3
1060
a1
b1
c1
v2
3
1040
2
1010
a1
a2
b1
b3
c1
c3
v2
v3
12
str 0.3
str 0.1
3
about
al
b1
cl
v2
fl
str 0.1
a1
a2
b2
b2
c2
c2
v2
v2
11
11
str 0.3
str 0.1
A
D
str 0,3
F
Sec.7 A107
T
Sec.15 A202
T
Sec.15 A300 A400
Sec.17 B107
A
Tl
II A
A
B
A
730
BUTYL ACETATE (all isomers)
3
880
n-BUTYL ACRYLATE (inhibited)
(all isomers)
CH1CHCOO(CH,hCH,
BUTYLAMINE (all isomers)
2
890
T2
II B
A
A
F
F
T
2
723
a2
b2
c3
v3
f1
str 0.3
A
F
T
BUTYLBENZENE (all isomers)
3
about
850
a1
b2
c2
v2
11
BUTYL BENZYL PHTHALATE
2
3
1120
870
BUTYL/DECYL/CETYL/EICOSYL
METHACRYLATE MIXTURE
(inhibited)
3
<1000
a2
a1
a1
b1
b2
b2
c1
c2
c2
v2
v2
v2
f1
BUTYL BUTYRATE (all isomers)
1,2-BUTYLENE OXIDE
HzCOCHCHzCH3
3
n-BUTYL ETHER
CH,(CH,hO(CH,hCH,
BUTYL METHACRYLATE (inhibited)
CH,C(CH,)COOC4Ha
3
831
770
a2
a1
b2
b2
c3
c3
v3
fl
A
A
str 0,3
A
F
A
D
11
str 0.3
str 0.3
v2
T2
T4
IIB
II B
A
c
A
~ :Jl
F
F
T
3
890
al
b2
c2
v2
Sec.15 A202
A203 A300
A400
11
II A
A
D
F
T
n"'c:
ro
:;r"'
Sec.15 A700
C701 C702
C704 C705
C708-C711
C713 C717 C719
C721
""en
"O :;r
Sec.15 A300
A400 A700
.,, s.
~O'
)>
~
. -a·
)>"'
I '-
'"<
"' ~
" "'
"'"'
Wto
'
Name and chemical fonnula
n-BUTYL PROPIONATE
BUTYRALDEHYDE (all isomers)
CH,(CH?)?CHO
BUTYRIC ACID
CH 3(CHz) 2COOH
~
I
I
Venti- Overlation
flow
system control
Ship
type
D
3
3
880
820
a1
a1
b2
b1
c2
c2
v2
v2
3
958
a1
b2
c2
v2
Tank Gauging
system
type
Tank
vent
system
11
11
Cargo
stripping
str 0.3
str 0.3
T3
II A
Fire
protection
A
A
Vapour
hazard
960
a2
b1
c1
v2
3
1140
a1
b2
c2
v2
3
1140
a1
b2
c2
v2
3
990
a1
b1
c1
v2
2
2
920
about
a2
a2
b2
b3
c2
c3
v2
v2
12
CARBON DISULPHIDE
CS2
2
1100
1260
a3
b3
c3
v2
12
str 0.1
CARBON TETRACHLORIDE
CCl4
CASHEW NUT SHELL OIL (untreated)
3
1590
a1
b3
c3
v3
11
str
3
950
a1
b2
c2
CAUSTIC SODA (solution)
(sodium hydroxide solution)
NaOH
CETYL/EICOSYL METHACRYLATE
MIXTURE (inhibited)
Ct<, C 1 • and C,o
CHLORINATED PARAFFINS
(C10 - C6n)
CHLOROACETIC ACID (80% or less)
CHzC!COOH
3
max.
a1
b1
11
11
11
Sec.15 A501
Sec.15 A207
A300 BlO!
B!03 B!04 B!05
B!06 B107
A
B
No.
Sec.15 A206 A501
str 0.1
No
Sec.15 A206 A50!
sir 0.3
A
B
B
A
II A
T6
II C
o: 1
c
F
F
T
F
T
T
v2
A
B
T
c1
v2
No
A
D
860
a1
b1
c1
v2
1
about
1100
a2
b1
c1
v2
12
2
1330
a2
b3
c2
v2
12
str 0.3
CHLOROBENZENE
C,H,Cl
3
1110
a1
b2
c2
v2
11
str 0.1
CHLOROFORM
CH Cl,
CHLOROHYDRINS (crude)
3
1480
a1
b2
c3
v2
11
str 0.1
2
1200
a2
b3
c3
v2
12
Sec.7 A107
Sec.15 A300 A400
Sec.15 A300
A400 A700
C200
Sec.17 B107
Sec.15 A300 A400
Sec.17 B107
Sec.15 A202
(copper, brass and
bronze may be used)
1540
3
A
No
Tl
II A
II A
.
B
A
,,._
"'Du·
~"'
;,,-
(') c...
::>"~
·<
,,. -
>CD
"<>CD
"<>CD
~
str 0.3
str 0.1
,, "'
"' c:
<g ~
I g!
F
T
No
.·
Remarks
Special requirements
"'<
A
2
CALCIUM ALKYL (C~)
PHENOL SULPHIDE/ OLYOLEFIN
PHOSPHOROSULPHIDE MIXTURE
CALCIUM HYPOCHLORITE
SOLUTION (15% or less)
CALCIUM HYPOCHLORITE
SOLUTION (more than 15%)
CALCIUM LONG CHAIN
ALKYL SALICYLATE (C" +)
CAMPHOR OIL
CARBOLIC OIL
Electrical equipment
Class
Group
Sec.15 A300
A400 B193
B105 B106 B107
F
T
T
F
T
Sec.15 A300 A400
Sec.15 A300 A400
'
Name and chemical formula
Ship
type
D
Tank Gauging
type system
Tank
Venti-
vent
lation
system system
4-CHLOR0-2-METHYLPHENOXYACETIC
3
ACID, DIMETHYLAMINE SALT SOLUTION
2
o-CHLORONITROBENZENE
c.H,CINO,
2- or 3- CHLOROPROPIONIC ACID
3
above
1000
a1
b1
c1
v2
1400
a2
b3
c3
v3
1400
a1
b1
c1
v2
CHLOROSULPHONIC ACID
ClS020H
1770
a2
b3
c3
v2
I
Overflow
control
Cargo
stripping
Electrical equipment
Class
Group
Fire
protecti on
Vapour
hazard
str 0.3
f2
f2
Remarks
Special requirements
Sec.15 A202
str 0. 1
T
str 0.3
B
D
A
Sec.15 A300 A400
A900 A1100
Sec.15 A207 A300
B103-107
str 0.3
No
T
Sec.15 A300
A400 A502
BlOO
ti
gi
I
'
m-CHLOROTOLUENE
CH,C.H 4 Cl
o-CHLOROTOLUENE
3
p-CHLOROTOLUENE
2
CHLOROTOLUENES (mixed isomers)
2
COAL TAR
2
COAL TAR NAPHTHA
SOLVENT
COAL TAR PITCH (molten)
3
3
3
a1
b2
c2
v2
f1
a1
b2
c2
v2
f1
a2
b2
c2
v2
f1
a2
b2
c2
v2
f1
1100
to
1300
830
860
a2
b2
c2
v2
f1
a1
b2
c2
v2
f1
1200
a3
b2
c2
v2
f1
a2
b2
c2
v2
1065
1078
1065
1078
1065
1078
1078
2
str 0. 1
str 0. 1
str 0. 1
T2
IIA
T3
II A
T2
II A
COBALT NAPHTHENATE
IN SOLVENT NAPHTHA
COCONUT OIL FATTY ACID
CREOSOTE (coal tar)
3
2
900
1070
a1
a2
b1
b1
c1
c1
v2
v2
f1
T2
II A
CREOSOTE (wood)
2
1100
a2
b1
c1
v2
f1
T2
II A
CRESOLS (all isomen;)
CH,C,H 40H
CRESYLIC ACID, DEPHENOLIZED
2
1040
a2
b1
c1
v2
f1
Tl
II A
2
1040
a2
b2
c1
v2
f1
CRESYLIC ACID,
SODIUM SALT SOLUTION
2
a2
b1
c1
v2
CROTONALDEHYDE
CH 3CHCHCHO
2
1000
to
1400
850
a2
b2
c3
v3
f1
1,5,9-CYCLODODECATRIENE
(inhibited)
1
890
a2
b2
c2
v2
f2
str 0.3
A
B
A
B
A
B
A
B
B
D
F
T
p
T
F
T
F
T
A
D
B
D
F
T
A
A
D
A
D
A
B
A
B
No
;'I ::0
rnc
n<D
Sec.15 A202
::r'"
:r:..o~ ~
"en
T3
II B
A
A
p
T
Sec.15 A300
A400 A501
Sec.17 BIO?
Sec.15 A203
". -a·
::r
~'"
I :_
..,s.
.,<
'°ro "'~
,. "'
"' "'
..
.,, JJ
gi
z
~
I
Venti- Overflow
lation
system control
D
CYCLOHEPTANE
C7H,.
CYCLOHEXANE
CYCLOHEXANONE
C,HrnO
CYCLOHEXANONE,
CYCLOHEXANOL MIXTURE
CYCLOHEXYL ACETATE
CYCLOHEXYLAMINE
C,H,,N
3
3
3
3
3
970
819
a1
a1
b2
b2
c2
c2
v2
v2
11
11
str 0.1
str 0.3
1,3-CYCLOPENTADIENE
DIMER (molten)
CYCLOPENTANE
CYCLOPENTENE
p-CYMENE
DECANOIC ACID
DECENE
DECYL ACETATE
DECYL ACRYLATE (inhibited)
CH 3(CHi)gOCOCH:CH2
2
980
a2
b2
c2
v2
11
3
3
3
3
3
3
2
740
7SO
860
886
740
870
900
a1
a1
a1
a1
a1
a1
a2
b2
b2
b2
b1
b2
b1
b1
c2
c2
c2
c1
c2
c1
c1
v2
v2
v2
v2
v2
v2
v2
11
11
11
830
1030
b1
b2
c1
c2
v2
v2
f1
2
a1
a2
11
str 0.1
str 0.3
3
760
a1
b2
c2
v2
11
str 0.3
Cargo
stripping
Electrical equipment
Fire
type
system
Tank
vent
system
809
a1
b2
c2
v2
11
str 0.3
A
F
780
9SO
a1
a1
b2
b2
c2
c2
v2
v2
f1
f1
str 0.3
A
A
F
Class
T2
Group
II A
protecti on
Vapour
hazard
F
Remarks
Special requirements
3
9SO
a1
b2
c2
v2
A
F
.
f1
11
11
F
str 0.1
A
F
str
str
str
str
str
str
A
A
A
A
A
A
A
F
T3
II A
0.3
0.1
0.3
0.3
0.1
0.1
T3
DECYL ALCOHOL (all isomers)
DECYLOXYTETRAHYDRO-THIOPHENE
DIOXIDE
DIBUTYLAMINE
(C4H9)2NH
3
DIBUTYL HYDROGEN
PHOSPHONATE
DIBUTYL PHTHALATE
DICHLOROBENZENE (all isomers)
CH6H4ct2
3
980
a1
b1
c1
v2
11
2
2
lOSO
130S
a2
a2
b1
b2
c1
c2
v2
v2
11
11
1,1-DICHLOROETHANE
CH,CHC17
DICHLOROETHYL ETHER
ClCH 7CH 70CH7CH7CI
1,6-DICHLOROHEXANE
3
1170
a1
b2
c2
v2
11
2
1070
a2
b2
c2
v2
11
str 0.1
2,2'-DICHLOROISOPROPYL ETHER
[ClCH2C(CH 3)H]zO
2
1128
a2
b2
c3
v3
12
str 0.3
T2
II A
II A
c
F
Sec.IS A206
Sec.IS A206
F
Sec.IS A203
A
F
c
Sec. IS Al 100
F
T
Sec.IS A20S
T
D
A
str 0.1
·.
str 0.1
Tl
II A
T2
II A
A
A
B
D
A
T
Sec.IS A206
F
Sec.17 BIO?
T
2
1220
a2
b2
c2
v2
f1
str 0.1
T2
II A
A
A
B
'A
c
D
F
Sec.IS A206
T
T
T
::;~
"'~
:l> lO
'O lO
'O lO
)>
Sec.IS A202
F
D
A
A
n '·<
T
c
,,,_
~~
mg
I g?
;:;i~·
T
A
A
"' c
;,,-
T
.
tJ
TatJ.k Gauging
Ship
type
Name and chemical formula
Sec. lS A206
A300 A400
'
Ship
type
D
DICHLOROMETHANE
3
1340
2,4-DICHLOROPHENOL
C,H,ChOH
2,4-DICHLOROPHENOXYACETIC
ACID, DIETHANOLAMINE SALT
SOLUTION
CH,CHC,H4 CH,
2
Name and chemical formula
ti
!!l
I
I
Tank Gauging
type system
Venti- Overlation
flow
system system control
Tank
vent
Cargo
stripping
Electrical equipment
Class
Group
Fire
protec-
Vapour
hazard
Remarb
Special requirements
1382
a1
a2
b2
b2
c2
c2
v2
v2
f1
tion
No
A
3
1280
a1
b1
c1
v2
11
No
Sec.15 A202
2,4-DICHLOROPHENOXYACETIC
ACID, DIMETHYLAMINE SALT
SOLUTION (70% or less)
3
1200
a1
b1
c1
v2
f1
No
Sec.15 A202
2,4-DICHLOROPHENOXYACETIC
ACID, TRJISOPROPANOLAMINE
SALT SOLUTION
c, ,H,.,O,NCh
3
1230
a1
b1
c1
v2
11
No
Sec.15 A202
1,1-DICHLOROPROPANE
2
1320
a2
b2
c3
v2
11
1,2-DICHLOROPROPANE
CH,CHCICH,
1,3-DICHLOROPROPANE
2
2
1160
1160
1230
a2
a2
a2
b2
b2
b3
c3
c3
c3
v2
v2
v3
1,3-DICHLOROPROPENE
CHC!CHCH2Cl
2
DICHLOROPROPENE/
DICHLOROPROPANE MIXTURES
2
2,2-DICHLOROPROPIONIC ACID
CH3CC12COOH
3
1389
a1
b2
c2
v2
DIETHANOLAMINE
(HOCH,CH,),NH
3
1100
a1
b1
c1
v2
DIETHYLAMINE
(C2H5)2NH
3
710
a1
b2
c3
v2
DIETHYLAMINOETHANOL
3
2,6-DIETHYLANILINE
3
1200
880
960
a2
a1
a2
b3
b2
b1
c3
c2
c1
v3
v2
v2
f1
str 0.3
str 0.3
11
12
12
11
11
11
Tl
Tl
str 0.1
str 0.1
str 0.3
str 0.3
T2
T2
II A
II A
II A
II A
A
B
T
A
B
A
B
A
B
D
F
F
Sec.15 A202 A800
Sec.15 A300 A400
Sec.15 A300 A400
Sec.15 A300 A400
T
F
T
F
T
Sec.15 A300
A400 A900
Sec.17 B107
Sec.15 A300
A400 A900
Sec.17 B107
A
Sec.15 A207
(aluminium not
permitted)
A301 A800 B103
B105 B106 B107
Sec.15 A203
A
T2
II A
A
str 0.3
F
T
II A
II A
T
A
B
Tl
T2
T
A
c
F
T
Sec.15 A202 A300
A400
Sec.17 B107
F
Sec.15 A202
T
Sec.15 A205
B
c
3
3
870
950
a1
a1
b2
b1
c2
c1
v2
v2
11
A
T2
II A
A
n<>
=r V>
~O'
>~
"Oen
'O =r
. -a·
> ..
D
DIETHYLBENZENE
DIETHYLENE TRIAMINE
NH,CH 7 CH 7 NHCH7 CH,NH,
~ JJ
me
I ;_
F
Sec.15 A203
.,,s.
.,-<
"' ~
,,....."' "'"'
~-.
,, JJ
Name and chemical formula
DIETHYL ETHER
CzHsOCzH5
~
z
s
<
!a
~
Ship
type
D
2
710
Tank Gauging
system
type
a3
b3
VentiTank
vent
lation
system system
c2
v2
Overflow
control
Cargo
stripping
f2
Electrical equipment
Class
Group
Fire
protection
T4
II B
A
DI- (2-ETHYLHEXYL) PHOSPHORIC
ACID
[C4H0 CH(C?H,)CH?J,HP04
DIETHYL PHTHALATE
3
973
a1
b1
c1
v2
str 0.3
B
D
3
1120
2
1172
b1
b3
c1
c2
v2
v2
f1
str 0.3
str 0.1
A
DIETHYL SULPHATE
(C?H,)?S04
DIGLYCIDYL ETHER OF
BISPHENOL A
a1
a2
3
1160
a1
b1
c1
v2
f1
str 0.1
A
DIGLYCIDYL ETHER OF
BISPHENOL F
DI-n-HEXYL ADIPATE
3
1200
a1
b1
c1
v2
f1
str 0.1
A
3
939
DIISOBUTYLAMINE
[(CH 3)2CHCH 2J2NH
74S
a1
a2
b1
b2
c1
c2
v2
v2
f1
f1
str 0.1
str 0.3
A
2
DIISOBUTYLENE
3
720
3
3
1040
990
b2
b1
b1
c2
c1
c1
v2
v2
v2
f1
DIISOBUTYL PHTHALATE
DIISOPROPANOLAMINE
(CH1 CH(OH)CH7 ),NH
a1
a1
a1
str 0.1
str 0.1
str 0.3
T2
ll A
A
A
DllSOPROPYLAMINE
((CH3)zCH)zNH
2
720
a2
b3
c3
v2
f2
str 0.3
T2
ll A
A
a2
a1
b1
b2
c1
c3
v2
v3
f1
b1
b2
c1
c3
v2
v2
f1
f1
str 0.1
str 0.3
v3
f2
str 0.3
D
A
v3
12
str 0.3
A
f1
Vapour
hazard
F
T
2
860
N ,N-DIMETHYLACETAMIDE
SOLUTION (40% or less)
3
about
IOOO
DIMETHYL ADIPATE
3
I070
DIMETHYLAMINE SOLUTION
(4S% or less)
(CH1 )?NH
DIMETHYLAMINE SOLUTION
(greater than 45% but not greater than 55%)
( CH1),NH/H?O
DIMETHYLAMINE SOLUTION
(greater than 55 % but not greater than 65 %)
3
700
a1
a1
2
800
a2
b3
c3
2
800
a2
b3
c3
c
F
T
D
A
F
a2
b2
c3
v3
f1
3
868
a1
b2
c2
v2
f1
Sec.IS A202
A300 A400
F
T
Sec.IS A203
A300 A400
Sec.17 BIO?
T
Sec.IS A20S
F
T
Sec.IS A202
A300 A400
Sec.17 BIO?
Sec.IS A202
A300 A400
Sec.17 BIO?
Sec. IS A202 .
A300 A4po
B200
Sec.17 BIO?
Sec.IS A202
A300 A400
A
T2
II A
A
c
c
F
T
D
8SO
Sec.IS A203
n '-
A
B
2
I g!
~~·
Sec.IS A203
c
F
T
D
N ,N-DIMETHYLCYCLOHEXYLAMINE
(CH1J?NC6H',
DIMETHYLETHANOLAMINE
(CH1)?NCH?CH?OH
Sec.IS A210
A400 A700
B200 C300
Sec.17 BIO?
Sec.IS A204
.
DIISOPROPYLBENZENE (all isomers)
~[
str 0.3
T3
II A
,,._
OOQ
o,:rS.
·<
""~
l>w
A
A
"'c
Remarks
Special requirements
A
c
F
T
A
D
F
T
Sec.IS A203
u"'
u"'
)>
"
Name and chemical formula
0
gi
I
,
Ship
type
D
DIMETIIYLFORMAMIDE
(CH1),NCHO
DIMETIIYL GLUTURATE
DIMETIIYL HYDROGEN
PHOSPHITE
(CH1 0) 0 P(O)H
3
9SO
a1
b2
c2
v2
3
3
1070
1200
a1
a1
b1
b2
c2
c3
v2
v2
str 0.3
str 0.1
A
A
D
DIMETIIYL OCTANOIC
ACID
3
902
a1
b1
c1
v2
str 0.3
A
str 0.3
str 0.3
A
Tank Gauging
type system
Tank
Venti- Overvent
lation
flow
system system control
Electrical equipment
Cargo
stripping
f1
Class
Group
T2
II A
Fire
protection
A
D
DIMETIIYL PHTHALATE
3
1190
DIMETIIYL SUCCINATE
3
DINITROTOLUENE (molten)
2
1120
1300
a1
a1
a2
b1
b1
b3
c1
c1
c3
v2
v2
v3
12
1,4 DIOXANE
c,H.o,
DIPENTENE
2
1040
a2
b3
c3
v2
12
3
8SO
DIPHENYL
I
1040
DIPHENYLAMINE, REACTION
PRODUCT WITII
2,2,4-TRIMETIIYLPENTENE
I
980
a1
a2
a2
b2
b1
b1
c2
c1
c1
v2
v2
v2
11
12
12
DIPHENYLAMINES, ALKYLATED
2
about
1000
a2
b1
c1
v2
f1
A
DIPHENYL/
DIPHENYL ETIIER
MIXTURES
I
1060
a2
b1
c1
v2
12
B
DIPHENYL ETIIER
DIPHENYL ETIIER/DIPHENYL
PHENYL ETIIER MIXTURE
3
3
1070
a1
a1
b1
b1
c1
c1
v2
v2
f1
11
DIPHENYLMETHANE
DIISOCYANATE
CH1(C<H4 NCO),
DIPHENYLOL PROPANE
-EPICHLOROHYDRIN RESIN
2
1230
a2
b3
c3
v3
f1
str 0.1
3
about
1000
a1
b1
c1
v2
f1
str 0.1
A
DI-n-PROPYLAMINE
(C.H 7 )?NH
3
741
a1
b2
c2
v2
11
str 0.3
A
DODECENE (all isomers)
3
760
830
2
about
800
v2
v2
v2
11
11
str 0.1
str 0.1
DODECYLAMINE/
TETRADECYLAMINE MIXTURE
c1
c1
c2
A
3
b1
b1
b2
f1
DODECYL ALCOHOL
a1
a1
a2
DODECYLDIMETHYLAMINE/
TETRADECYLAMINE MIXTURE
2
about
800
a2
b1
c1
v2
f1
Vapour
hazard
Remarks
Special requirements
F
T
T
A
T2
II B
str 0.3
A
T
Sec.IS A300
A400 AllOO Al200
A
F
T
F
Sec.7 A107
Sec. IS A300 A400
T
Sec.IS A206
A300 A400
A800 AllOO
F
T
Sec. IS A203 .
A300 A4po
A
B
A
.
1030
to
1200
A
A
**
c
D
A
B
D
A
A
·D
;'?
nro
:y<n
;JJ
Ole
~O'
)>
Sec.IS AllOO
Sec.IS A203
Sec.IS A20S
"
"
~
(/)
:J"
~~-
I :._
.,, s.
"'<
"' ~
"'" "'"'
"'"'
..
Ship
type
D
DODECYL D!PHENYL
ETHERDISULPHONATE
SOLUTION
2
1160
DODECYL METHACRYLATE
(inhibited)
CH?:C(CH,)COO(CH?),, CH,
3
DODECYL/PENTADECYL
METHACRYLATE MIXTURE
(inhibited)
CH,= C(CH,)COOC ,,_, ;
3
Name and chemical formula
I
~
a2
bl
VentiTank
vent
lation
system system
cl
v2
Overflow
control
Cargo
stripping
Electrical equipment
Class
Group
11
Fire
protection
Vapour
hazard
No
Sec. lS AllOO
"'-
870
al
bl
cl
~"'
v2
"'
A
n '-
860
al
bl
c1
v2
""~
>"'
A
D
"O "'
"O "'
~
DODECYL PHENOL
I
3
EPICHLOROHYDRIN
C,H,OCI
2
940
about
2000
a2
al
1180
a2
b3
c3
v3
bl
bl
cl
cl
v2
v2
12
11
A
str 0.1
No
.
·'
12
II B
A
T2
II A
A
T2
IIB
A
A
T2
II A
Sec. IS A300 A400
Sec.17 B107
Sec.lS A203
c
D
F
T
F
T
F
F
T
F
T
Sec.lS A202
A300 A400
B200
Sec.17 B107
.
3
1020
al
bl
cl
v2
2-ETHOXYETHYL ACETATE
ETHYL ACRYLATE (inhibited)
CH2CHCOOC 7H;
ETHYLAMINE
3
2
970
al
a2
b2
b2
c2
c2
v2
v2
2
710
a3
b3
c3
v2
ETHYLAMINE SOLUTIONS
(72 % or less)
2
810
a2
b3
c3
v3
12
str 0.3
A
c
F
T
ETHYL AMYL KETONE
3
3
822
740
b2
b2
b2
c2
c2
c2
v2
v2
v2
11
11
11
str 0.3
str 0.1
str 0.3
A
3
al
al
al
b2
b2
b2
c2
c2
c2
v2
v2
v2
11
11
11
str 0.3
str 0.3
b3
c3
v3
12
F
F
F
T
F
F
F
T
F
T
.
N-ETHYLBUTYLAMINE
C,H,NHCH?CH,CH?CH,
""'
"' c:
~~
OQ
I g?
S
.:::r-<
DRILLING BRINES,
CONTAINING ZINK SALTS
ETHYLBENZENE
Remarks
Special_ requirements
"1Ju·
ETHANOLAM!NE
~
Tank Gauging
type system
930
str 0.3
11
11
.
870
ETHYL BUTYRATE
3
880
ETHYLCYCLOHEXANE
N-ETHYLCYCLOHEXYLAM!NE
c.H 17N
ETHYLENE CHLOROHYDRIN
CH 1 ClCH 1 0H
3
3
787
84S
al
al
al
2
1210
a2
ETHYLENE CYANOHYDRIN
HOCH?CH?CN
ETYLENEDIAM!NE
NH?CH?CH?NH?
3
1040
al
bl
cl
2
910
a2
b2
c2
'
str 0.3
str 0.3
A
A
A
A
A
c
T2
v2
v2
str 0.3
T2
II A
A
D
II B
A
II A
A
F
T
Sec.ls A203
A300 A400
B200
Sec.17 B107
Sec.ls A202
A300 A400
Sec. lS A202
Sec. IS A300 A400
Sec.17 B\07
Sec.7 A107
Sec.lS A203
"
Name and chemical formula
Ship
type
ETHYLENE DIBROMIDE
CHzBrCHzBr
D
Tank Gauging
type
system
VentiTank
vent
lation
system system
Over-
fWw
Cargo
stripping
control
2
2170
a2
b3
c3
v2
11
str 0.1
2
1260
a2
b2
c2
v2
12
str 0.1
3
942
al
bl
cl
v2
3
1104
al
bl
cl
3
980
al
bl
3
al
2
about
900
850
3
3
Electrical equipment
Class
Group
Fire
Vapour
protec- haz.ard
tion
No
T
F
T
str 0.3
A
B
A
v2
str 0.3
A
cl
v2
str 0.3
A
b2
c2
v2
11
a3
b3
c3
v2
12
str 0.3
940
890
al
al
b2
bl
c2
cl
v2
v2
11
11
str 0.3
str 0.1
2
790
a2
b2
c3
v2
11
str 0.1
A
ETHYLIDENE NORBORNENE
3
900
al
b2
c3
v2
11
str 0.1
ETHYL METHACRYLATE (inhibited)
HoCCCH,COOC,H,
o-ETHYLPHENOL
2-ETHYL-3-PROPYLACROLEIN
CH,(CHoloCHC(C,H,)CHO
ETHYLTOLUENE
3
910
al
b2
c2
v2
11
3
3
I037
850
al
al
bl
b2
cl
c2
v2
v2
11
A
D
A
D
B
A
3
3
860
1410
al
a2
b2
bl
c2
cl
v2
v2
11
2
1290
a2
b2
c2
v2
.
Cl
gi
I
~
ETHYLENE DICHLORIDE
CH0 C!CH0 Cl
ETHYLENE GLYCOL BUTYL
ETHER ACETATE
ETHYLENE GLYCOL
DIACETATE
ETHYLENE GLYCOL METHYL
ETHER ACETATE
ETHYLENE GLYCOL
MONOALKYL ETHERS
ETHYLENE OXIDE/PROPYLENE
OXIDE MIXTURE with an ethylene
oxide content of not more than 30% wt
ETHYL-3-ETHOXYPROPIONATE
2-ETHYLHEXYL ACRYLATE
(inhibited)
CH,CHCO,cH,CH(C,H,)C4Ho
2-ETHYLHEXYLAMINE
C, HoCH( c, H,)CH-.NH1
FERRIC CHLORIDE
SOLUTIONS
FERRIC NITRATE/NITRIC
ACID SOLUTION
FLUOROSILICIC ACID (20%-30%)
IN WATER SOLUTION
FORMALDEHYDE SOLUTIONS
(45% or less)
HCHO
FORMIC ACID
HCOOH
.
3
1200
a3
b2
c2
v2
3
1110
al
b2
c2
v2
3
1220
al
b2
c2
v2
T2
II A
Sec.7 A107
Sec.15 A300 A400
Sec.17 BIO?
Sec.15 A205
A
T2
T3
T2
II B
A
IIB
A
A
II A
II A
11
c
11
str 0.1
str 0.3
A
No
12
str 0.3
No
F
T
Sec.15 A300
A400 A600
A700 B200 C700
F
T
F
T
F
T
Sec.15 A203
A300 A400
Sec.15 A205 A501
F
T
F
Sec.15 A300 BlOO
T
str 0.3
11
Remarb
Special requirements
str 0.3
T2
II B
A
F
T
Tl
II A
A
T
Sec.15 A300 BlOO
Sec.15
Sec.17
Sec.15
Sec.17
BlOO
B107
A501
B107
~"'
"' £
nm
.::T"'
... 0
~
:J> ;;.,
"O ::T
"O
-·
. "O
:J>"'
Sec.7 AI07
Sec.15 A208 A300
BI03-107
Sec.17 BIO?
I '-,,£
O>-<
"' ~
"' "'
~"'
"' "'
"
Ship
type
D
FUMARIC ADDUCT OF ROSIN,
WATER DISPERSION
3
1060
a1
b1
c1
FURFURAL
C,H,OCHO
3
1160
a1
b2
FURFURYL ALCOHOL
3
1130
GLUTARALDEHYDE SOLUTIONS
(50% or less)
HOC(CH,),COH
3
1122
a1
a1
b1
b1
GLYCIDYL ESTER OF ClO
TRIALKYLACETIC ACID
HEPTANE (all isomers)
3
HEPTANOL (all isomers)
Name and chemical fonnula
~
Overflow
control
Cargo
stripping
v2
f1
str 0.1
c2
v2
f1
str 0.3
c1
c1
v2
v2
Electrical equipment
Class
Group
Fire
protection
Vapour
hazard
Remarks
Special requirements
T2
II B
str 0.3
A
F
T
Sec.15 A501
str 0.1
A
about
700
a1
b2
c2
v2
!1
str 0.3
A
F
3
800
890
(90%
sol.)
v2
v2
v2
v2
!1
!1
!1
!1
str
str
str
str
0.3
0.3
0.1
0.3
F
3
c2
c2
c1
c2
A
HEXAMETHYLENEDIAMINE
SOLUTION
H7 N(CH7 ),NH7
b2
b2
b1
b2
F
3
3
a1
a1
a1
a1
A
700
A
A
T
Sec.15 A203
HEXAMETHYLENEIMINE
c,H,,NH
2
880
a2
b2
c2
v2
!1
str 0.3
3
a1
b2
c2
v2
!1
str 0.3
REXENE (all isomers)
3
about
660
670
F
T
F
Sec.15 A202
HEXANE (all isomers)
A
c
A
3
1010
1210
v2
v2
v2
str 0.3
str 0.1
HYDROCHLORIC ACID
HCl
c2
c2
c2
F
870
b2
b2
b2
A
3
a1
a1
a3
f1
HEXYL ACETATE
HYDROGEN PEROXIDE SOLUTION
(over 8% but not ove:r 60%)
H,o,
HYDROGEN PEROXIDE SOLUTIONS
(over 60% but not over 70%)
2-HYDROXYETHYL ACRYLATE
(inhibited)
2-HYDROXY-4-(METHYLTHIO)
BUTANOIC ACID
3
1195
a2
b3
c2
v2
f1
str 0.3
No
Sec.15 A300 C500
2
1195
a2
b3
c2
v2
!1
str 0.3
No
Sec.15 A300 A400
2
1104
a2
b3
c3
v2
f1
str 0.1
A
3
940
a1
b1
c1
v2
str 0.3
A
ISOPHORONEDIAMINE
C,,,H,,N,
3
925
a1
b2
c2
v2
ISOPHORONE DIISOCYANATE
C12H1sN202
2
1064
a2
b3
c3
v3
ISOPRENE (inhibited)
CH7 C(CH,)CHCH 7
3
!1
str 0.1
A
F
No
T
a1
b2
c2
v2
!1
str 0.3
T3
II B
Sec.15 A300 BlOO
Sec.17 B107
T
Sec.15 A300 A400
A
T
Sec.15 A203
**
A
T
Sec.15 A206
A300 A400
A502 A800
F
Sec.15 B200
B
.D
680
B
""~
)> <.D
u <.D
u <.D
~
!1
f1
-Ou
~"'
;,,·
"'~
·<
Sec.15 A203
No
v2
880
"'-
n'-
A
c1
3
-o:c
.,
c:
"'"' -~
''"'
I~
No
b1
HEPTYL ACETATE
I
VentiTank
vent
lation
system system
a1
HEPTENE (all isomers)
~
Tank Gauging
type system
"
Name and chemical fonnula
0
~
I
~
~
Tank Gauging
type
system
Ship
type
D
ISOPROPANOLAMINE
3
960
a1
b1
ISOPROPYLAMINE
(CH3) 2CHNH 2
2
690
a2
b3
ISOPROPYLCYCLOHEXANE
3
ISOPROPYL ETHER (inhibited)
(CH1 )oCHOCH(CH 1 h
LACTONITRILE SOLUTION
(80 3 or less)
Venti/ation
system system
c1
v2
Tank
vent
c3
v2
Overflow
control
12
a1
a1
b2
c2
v2
11
3
800
723
b2
c2
v2
11
2
990
a3
b3
c3
v3
12
LAURIC ACID
LONG CHAIN ALKARYL
POLYETHER (C11 - Czo)
3
3
LONG CHAIN POLYETHERAMINE
IN ALKYL (C2 - C4)
BENZENES
3
LONG CHAIN POLYETHERAMINE
IN AROMATIC SOLVENT
3
MAGNESIUM LONG CHAIN ALKYL
SALICYLATE (C11 +)
Cargo
stripping
Electrical equipment
Fire
Class
Group
protection
str 0.3
T2
II A
A
str 0.3
T2
II A
str 0.3
str 0.1
Vapour
hazard
D
F
F
F
T
A
A
F
F
A
T
c
A
str 0.3
A
8
a1
b2
c2
v2
11
str 0.3
A
F
about
900
a1
b2
c2
v2
11
str 0.3
A
F
3
940
to
1050
a1
b1
c1
v2
str 0.3
A
B
MALEIC ANHYDRIDE
HCCHC(O)OC(O)
3
934
a1
b2
c2
v2
MERCAPTOBENZOTHIAZOL,
SODIUM SALT SOLUTION
3
1250
a1
b1
c1
v2
11
MESITYL OXIDE
(CH1 ),CCHCOCH 1
3
850
a1
b2
c2
v2
11
METAM SODIUM
SOLUTION
METHACRYLIC ACID (inhibited)
CH,:C(CH1 )COOH
2
about
1150
1015
a2
b1
c1
v2
11
a1
b2
c2
v2
a1
•
A
c
3
METHACRYLIC RESIN IN
ETHYLENE DICHLORIDE
2
METHACRYLONITRILE (inhibited)
2
METHYL ACRYLATE (inhibited)
CH,CHCOOCH1
1000
to
1500
Sec.15 A700
Sec.15 AllOO
str 0. 1
b1
11
11
b1
Sec.15 A203
A300 A400
8200
Sec.17 8107
D
v2
v2
a1
Sec.15 A203
Stabilized during
transport
Sec.15 A300 A400
A900 AlOOO
Sec.17 8107
c
c1
c1
860
Remarks
Special requirements
2
No
T2
II B
A
Sec.15 A202
F
T
No
Sec.15 A202
~"
Sec.15 A207
(") iD
'-"c
about
1200
a2
805
a2
950
str 0. 1
a2
b2
b3
b2
c2
c3
c2
v2
v3
v2
A
12
str 0.1
T2
II A
12
11
str 0.1
Tl
II 8
T
A
B
F
T
A
F
T
A
F
T
.
.::T"'
-!>o
~
~~
'C "
::T'
Sec.15 A205
A300 A400
Sec.17 8107
Sec.17 8207
):.~·
I~
.,,~
m-<
<O
~
"'"' "'"'
W<.O
..
Name and chemical formula
~
r
<
~
Ship
type
D
Tank Gauging
system
type
Venti- OverTank
lation
vent
flow
system system control
Cargo
stripping
Electrical equipment
Class
Group
Fire
protection
Vapour
hazard
cg~
Sec.15 A202
A300 A400
Sec.17 BIO?
I g?
~~·
METIIYLAMINE SOLUTIONS
(42% or less)
CH 3NH,
METHYLAMYL ACETATE
2
860
a2
b3
c3
v3
12
str 0.3
A
c
D
F
T
3
860
810
3
3
890
770
METIIYLCYCLOPENDADIENE
DIMER
METIIYL DIETHANOLAMINE
3
980
v2
v2
v2
v2
v2
str
str
str
str
str
A
A
METIIYL BUTYRATE
METIIYLCYCLOHEXANE
c2
c2
c2
c2
c2
F
3
b2
b2
b2
b2
b2
11
METIIYLAMYL ALCOHOL
al
al
al
a1
al
3
1040
2-METHYL-6-ETHYL ANILINE
(CH3)(C.H,)C,H3NH, c,HnN
2-METHYL-5-ETHYL PYRIDINE
CH,c,H,NC.H,
3
969
al
al
bl
bl
cl
cl
v2
v2
3
920
al
bl
cl
v2
11
METIIYL FORMATE
HCOOCH3
2
950
980
a2
b2
c3
v2
12
METIIYL HEPTYL KETONE
3
820
3
867
b2
b2
c2
c2
v2
v2
11
2-METHYL-2-HYDROXY-3-BUTYNE
(CH3) 2C(OH)C,,CH
al
al
11
METIIYL METHACRYLATE
(inhibited)
CH,C(CH,)COOCH,
2
940
a2
b2
c2
v2
11
METIIYL NAPHTHALENE (molten)
2
about
1000
a2
b2
c2
v2
11
A
D
2-METHYLPYRIDINE
C,H4N(CH3)
3-METHYLPYRIDINE
2
952
a2
b3
c2
v2
11
A
F
Sec.15 A205
A300 A400
2
960
a2
b3
c2
v2
12
F
Sec.15 A205
Sec.15 A300
4-METHYLPYRIDINE
C,H7N
METIIYL SALICYLATE
alpha-METHYL STYRENE (inhibited)
C6H5C(CH3)CH,
2
950 .
a2
b3
c2
v2
12
A
c
A
F
T
Sec.15 A205
A300 A400
3
3
1180
910
al
al
bl
b2
cl
c2
v2
v2
11
11
Tl
II B
A
A
D
F
T
3
1000
al
b2
c2
v2
11
T2
II A
A
F
2
975
a2
b2
c2
v2
11
Tl
II A
A
2
960
a2
bl
c2
v2
11
MORPHOLINE
(CH,) 4 0NH
11
11
11
11
0.3
0.3
0.3
0.3
0.1
"'~
l>w
uw
A
F
U(O
B
F
'I>
Sec.15 A203
II A
Sec.15 A205
A
F
T
A
F
II A
A
B
D
F
T
II A
A
F
T
str 0.1
T2
A
D
A
D
str 0.3
str 0.1
MOTOR FUEL ANTI KNOCK
COMPOUNDS (see TETRAETHYL
LEAD)
NAPHTHALENE (molten)
C,oH,
NAPHTHEN!C ACIDS
:rS.
·<
F
A
str 0.1
o,n '-
A
str 0.3
.,,
"'... Q
"'c"
Remarks
Special requirements
A
Sec.15 A300
A400 B200
Sec.17 BIO?
Sec.15 A209
Sec.15 A;203
"
Ship
type
D
NEODECANOIC ACID
3
920
NITRATING ACID (mixture of
sulphuric and nitric acids)
2
1700
to
1900
NITRIC ACID (above 70%)
HNO, .
2
NITRIC ACID (less than 70%)
HN0 3
NITRO BENZENE
qH5NOz
o-NITROPHENOL (molten)
c.H,NO,
I- or 2-NITROPROPANE
CH 3CH,CH,.No 2
NITROPROPANE (60%)
NITROETHANE (40%) MIXTURE
Name and chemical fonnula
tJ
i:J
I
~
b1
b3
c1
c2
v2
v3
1500
a2
b3
c2
2
1420
a2
b2
2
1200
a2
2
3
1294
(4S 0 C)
IOOO
3
2
3
NONENE (all isomers)
3
NONYL ACETATE
3
Fire
protection
Vapour
hazard
Remarks
Special requirements
str 0.3
No
T
Sec.IS A300 BIOO
See.I? BIO?
c2
v2
f2
str 0.3
No
T
b3
c3
v3
f2
str 0.1
A
D
T
See. IS A300 BIOO
Sec.I? BIO?
Sec.7 AIO?
Sec.IS A300
A400 A900
a2
b3
c3
v2
f1
str 0.1
T
a1
b2
c2
v2
f1
A
D
A
I020
a1
b2
c2
v2
f1
A
F
T
Sec.IS A20S
1160
a2
b3
c3
v3
f2
str 0.1
T
Sec. IS A300 A400
a1
b2
c2
v2
f1
str 0.3
A
B
B
c
a1
a1.
a1
a2
a1
b2
b1
b1
b1
b1
c2
c1
c1
c1
c1
v2
v2
v2
v2
v2
f1
str 0.1
str 0.3
str 0.3
f1
str 0.1
A
a1
b2
c2
v2
f1
str 0.3
A
a1
a1
a1
a1
a1
b1
b2
b1
b2
b2
c1
c2
c1
c2
c2
v2
v2
v2
v2
v2
str 0.3
str 0.1
str 0.3
str 0.1
str 0.3
A
about
700
730
940
I040
to
IO?O
OCTANE (all isomers)
:i
OCTANOL (all isomers)
3
about
700
830
OCTENE (all isomers)
3
700
n-OCTYLACETATE
3
OCTYL ALDEHYDES
3
3
3
Group
f2
830
alpha-OLEFINS
(C, - CTR) MIXTURES
Class
v2
830
600
to
700
600
to
800
f1
f1
f1
f1
f1
Tl
T2
.
3
Electrical equipment
f2
2
3
OLEFIN MIXTURES
(C5 - C15)
Cargo
stripping
A
No
3
OLEFIN MIXTURES
<Cs-~l
Overflow
control
str 0.3
str 0.3
NONYL PHENOL
NONYL PHENOL POLY
(4 - 12) ETHOXYLATES
.
VentiTank
vent
lation
system system
a1
a2
o- or p-NITROTOLUENES
C7H7NO,
NONANE (all isomers)
NONYL ALCOHOL (all isomers)
Tank Gauging
type system
II A
II B
II B
Sec.IS BIOO
Sec.I? BIO?
See.IS A300
A400 AllOO
F
T
F
A
A
A
A
A
Sec. IS AllOO
F
F
A
;'i' ;JJ
me
A
F
n<>
A
F
:S:..O'
=r"'
;!>~
"rn
"=r
a1
b2
c2
v2
f1
str 0.1
A
F
'.l>-g·
I -;_
.,, s.
a1
b2
c2
v2
f1
str 0.1
A
"<
"' ~
"'"'" "'"'"'
'
·'
Name and chemical formula
Ship
type
I
~
~
Tank Gauging
type system
Tank
Venti-
Over-
flow
lation
vent
system system control
OLEUM
H1S04 +S03
2
Max.
1980
a2
b3
c3
v3
f2
OLEYAMINE
PALM KERNEL ACID OIL
2
3
8280
870
a2
al
b2
bl
c2
cl
v2
v2
f1
PARALDEHYDE
OCH(CH,)OCHCH,OCHCH,
PENTACHLOROETHANE
CHChCCl,
1,3-PENTADIENE (inhibited)
3
990
al
b2
c2
v2
2
1680
a2
b2
c3
v3
f1
3
680
al
b2
c2
v2
3
3
3
3
2
630
620
870
1623
IOSO
al
al
al
al
a2
b2
b2
b2
b2
b3
c2
c2
c2
c3
c3
v2
v2
v2
v2
v2
l-PHENYL-1-XYLYL ETHANE
PHOSPHORIC ACID
H,PO,
PHOSPHORUS (yellow or white)
3
3
al
a2
b1
b1
c1
c1
v2
v2
I
990
SS%
1690
1820
a3
b3
c2
v2
PHTHALIC ANHYDRIDE (molten)
C6H4(CO),O
alpha-PINENE
beta-PINENE
PINE OIL
POLY(2+)CYCLIC AROMATICS
3
IS30
a1
b2
c2
v2
3
3
3
2
860
a1
a1
a1
a2
b2
b2
b1
b2
c2
c2
c1
c2
v2
v2
v2
v2
f1
POLYALKYL(CX~-~
3
a1
b2
c2
v2
f1
a1
b1
c2
v2
PENTANE (all isomers)
~
D
PENTENE (all isomers)
n-PENTYL PROPIONATE
PERCHLOROETHYLENE
PHENOL
C6H50H
p,
.
ACRYLATE IN
LE
POLYALKYLENE OXIDE
POLYOL
POLYETHYLENE POLYAMINES
POLYFERRIC SULPHATE SOLUTION
POLYMETHYLENE POLYPHENYL
ISOCYANATE
3
3
3
2
about
930
about
900
1020
to
1060
980
1460
1198
a1
a1
a2
b1
b1
b3
c1
c1
c3
v2
v2
v2
Cargo
stripping
Electrical equipment
Class
Group
str 0.3
Fire
Vapour
protec- hazard
~~
Sec.IS A300
AS02 BIO!
BI03-107
I~
~~
tion
No
str 0.3
"O:C
T
,.
Sec.17 B107
str 0.1
No
T
Sec. IS A300 A400
f1
str 0.3
B
F
T
Sec.IS AIOOO
fl
str
str
str
str
str
A
F
A
A
No
A
F
Sec.IS B200
Sec.IS B200
f1
f1
f1
f2
0.3
0.3
0.3
0.1
0.1
Tl
II B
II A
str 0.3
Tl
str 0.3
A
D
A
A
A
A
D
A
str 0.3
A
f1
str 0.1
str 0.3
str 0.3
str 0.3
f1
F
T
T
II A
Sec.IS C600
Sec.17 B107
F
F
'
Sec.IS A203
A
A
**
A
Sec.7 AI07
Sec.IS A300
A400 AllOO
Sec.IS A300
B102-107
c
str 0.3
f1
·<
~
B
No
f2
c,,-
:;r£
F
T3
"'°'~
n '-
A
B
A
str 0.3
"'c
Remarks
Special requirements
T
Sec. IS A211
Sec.IS A206
A300 A400
A800
~"'
""j,. "'"'
'
Name and chemical formula
ti
gi
I
I
Ship
type
D
Tank Gauging
type
system
Venti- Overlation
flow
system system control
Tank
Cargo
vent
stripping
Electrical equipment
Class
Group
Fire
Vapour
Remarks
protection
ha:zard
Special requirements
POLYOLEFINAMINE IN ALKYL
(C7 -C.J BENZENES
POLYOLEFINAMINE IN
AROMATIC SOLVENT
POLYOLEFIN
PHOSPHOROSULPHIDE-BARIUM
DERIVATIVE (C, 2 -C.m)
POTASSIUM CHLORIDE
SOLUTION (10% or more)
POTASSIUM HYDROXIDE
SOLUTION
POTASSIUM OLEATE
3
a1
b2
c2
v2
11
str 0.3
A
F
3
a1
b2
c2
v2
11
str 0.3
A
F
a1
b1
c1
v2
str 0.3
A
B
a1
b1
c1
v2
str 0.3
No
a1
b1
c1
v2
str 0.3
No
a1
b1
c1
v2
str 0.3
A
n-PROP ANOLAMINE
H7 NCH 7CH 2CH 70H
/l-PROPIOLACTONE
c,H.o,
PROPIONALDEHYDE
C,H,CHO
PROPIONIC ACID
CH3CH2COOH
3
1080
to
1220
about
1400
about
1500
about
1000
982
a1
b1
c1
v2
str 0.3
2
1150
a2
b2
c2
v2
A
D
A
3
800
a1
b2
c2
v3
3
990
a1
b2
c2
v2
PROP!ONIC ANHYDRIDE
(CH1CH 7 CO),O
PROPIONITRILE
C3H5N
3
1010
a1
b2
c2
v2
2
780
a3
b3
c3
v3
n-PROPYLAMINE
CH3(CHiJ2NH2
2
720
a2
b3
c3
PROPYLBENZENE (all isomers)
n-PROPYL CHLORIDE
3
3
a1
a1
b2
b2
c2
c2
3
2
860
about
800
720
860
a1
a2
b2
b3
c2
c3
v2
v3
11
12
str 0.3
3
3
3
760
740
980
a1
a1
a1
b2
b2
b2
c2
c2
c2
v2
v2
v2
11
11
str 0.1
str 0.1
PROPYLENE DIMER
PROPYLENE OXIDE
CH,CHOCH7
PROPYLENE TETRAMER
PROPYLENE TRIMER
PYRIDINE
CH(CHCH),N
ROSIN
ROSIN SOAP (disproportionated solution)
3
3
3
3
11
II A
str 0.3
A
See.15 A202
See.15 A203
T
Tl
II A
A
F
T
F
str 0.3
T2
II A
A
T
12
str 0.3
Tl
II B
A
D
F
T
v2
12
str 0.3
T2
II A
A
D
F
T
v2
v2
11
A
A
B
A
A
c
A
A
A
F
F
11
T2
11
Tl
II B
II A
F
F
T
F
F
F
See.15 A501
See.17 B107
Sec.15 A207 A300
8103-107
Sec.17 B107
See.15 A207
See.15 A300
A400 A900
See.17 B107
See.15 A203
A300 A400
A700
Sec.17 B107
~
. ;JJ
"1c
nro
See.15 A700
B200 C700.
or"'
'.p..Q'
~~
"O
-o "'
or
. -c·
~"'
Sec.15 A205
I:_
-aS.
3
3
1000
1050
a1
a1
b1
b1
c1
c1
v2
v2
11
11
str 0.1
str 0. 1
A
A
"'<
ro w
cc~
"''°
'"''°
..
Name and chemical formula
SODIUM ALUMINATE SOLUTION
0
gi
I
~
~
Tank Gauging
type system
Ship
type
D
3
about
1000
al
bl
Venti- Overlation
flow
vent
system system control
Tank
cl
Cargo
stripping
Electrical equipment
Class
Group
v2
SODIUM BOROHYDRIDE (15% or less)
/SODIUM HYDROXIDE SOLUTION
3
about
1400
al
bl
cl
v2
SODIUM CHLORATE SOLUTION
(50% or less)
NaCI0 3
SODIUM DICHROMATE SOLUTION
(70 % or less)
Na?Cr1 07/H?O
SODIUM HYDROGEN SULPHIDE
(6% or less)/
SODIUM CARBONATE
(3% or less) SOLUTION
3
1497
al
bl
cl
v2
Fire
protection
Vapour
hazard
No
str 0.3
fl
Remarb
Special requirements
Sec.15 A202
No
Sec.15 A202
No
Sec.15 A501
-0:0
"' c:
<O
-
"' 1J:
"'OOQ
I~
~-g
c,,·
n2"
,,.?°"-<
~
l>"'
2
1720
a2
b3
cl
v2
f2
str 0.3
No
3
about
1000
al
bl
cl
v2
fl
str 0.1
No
SODIUM HYDROGEN
SULPHITE SOLUTION
(45% or less)
3
1300
al
bl
cl
v2
SODIUM HYDROSULPHIDE
SOLUTION (45% or less)
NaSH·2H,o
3
1257
al
b2
c2
v2
fl
str 0.1
No
T
Sec.15 A501
SODIUM HYDROSULPHIDE/
AMMONIUM SULPHIDE SOLUTION
NaHS/(NH4)SiHzO
2
1257
a2
b3
c3
v3
f2
str 0.1
A
F
T
Sec.15 A202
A300 A400
A501 B200
Sec.17 B107
SODIUM HYPOCHLORITE
SOLUTION (15% or less)
NaOCL
3
max.
1300
al
b2
c2
v2
str 0.3
No
Sec.15 A202
(copper, brass
and bronze may be
used) A501
SODIUM NITRITE
SOLUTION
2
1270
a2
bl
cl
v2
f2
str 0.1
No
Sec.15 A501
SODIUM PETROLEUM SULFONATE
2
1050
v2
v2
A
about
1000
cl
cl
str 0.1
3
bl
bl
fl
SODIUM SILICATE SOLUTION
a2
al
SODIUM SULPHIDE SOLUTION
(15% or less)
SODIUM SULPHITE SOLUTION
(25 % or less)
3
about
1000
about
1000
al
b3
c2
v2
fl
str 0.1
No
al
bl
cl
v2
fl
str 0.3
No
SODIUM TARTRATES and
MONO-/DI-SUCCINATE SOLUTION
3
1400
al
bl
cl
v2
SODIUM THIOCYANATE
SOLUTION (56% or less)
3
about
1000
al
bl
cl
v2
11
str 0.1
A
B
No
STYRENE MONOMER (inhibited)
C6 H,CHCH?
3
920
al
bl
c2
v2
fl
str 0.1
Sec.15 A203
A300 A400
No
SODIUM HYDROXIDE
SOLUTION (see caustic soda)
.
3
A
Tl
II A
B
T
Sec.15 A206
A501
Sec.15 A501
.
F
Sec.15 A205
"'"'j,. "'"'
"
Name and chemical formula
tJ
I
~
D
Tank Gauging
type system
Tank
Venti-
vent
lation
1070
b1
3
1800
a3
b1
c1
v2
SULPHURIC ACID
H2so4
3
1S60
1840
a2
b1
c1
v2
SULPHURIC ACID (spent)
3
1S90
a2
b1
c1
v2
SULPHO HYDROCARBON
LONG CHAIN (C18+)
ALKYLAMINE MIXTURE
SULPHUR (molten)
Over-
flow
system system control
f1
c1
v2
a1
3
s
gi
Ship
type
Cargo
stripping
Electrical equipment
Class
Group
str 0.1
Fire
Vapour
protec- hazard
Remarks
Special requirements
tion
A
B
T3
No
Sec.lS C900
str 0.3
No
str 0.3
No
Sec.lS A300
AS02 BlOO
C800
Sec.lS A300
AS02 BlOO
C800
f1
str 0.1
A
11
str 0.1
A
str 0.3
A
TALL OIL, CRUDE AND DISTILLED
3
IOOO
TALL OIL FATTY ACID,
BARIUM SALT
3
llSO
a1
a1
b1
b1
c1
c1
v2
v2
TALL OIL PATTY ACID (resin acids
less than 20 %)
3
IOOO
a1
b1
c1
v2
TALL OIL SOAP (disproportionated)
solution
TETRACHLOROETHANE
CHC11 CHC11
3
I040
a1
b1
c1
v2
11
str 0.1
A
3
1S90
a1
b2
c3
v3
f1
str 0.1
No
TETRAETHYLENE PENTAMINE
NH,(CH,CH,NHhCH,CH,NH,
3
IOOO
a1
b1
c1
v2
TETRAETHYL LEAD and
TETRAMETHYL LEAD in anti-knock
compounds
(CoH,) 4 Pb and (CH1 ) 4 Pb
TETRAHYDROPURAN
(CoH 4 )?0
1
lSOO
1700
a3
b3
c3
v3
3
890
a1
b2
c2
v2
TETRAHYDRONAPHTHALENE
TETRAMETHYLBENZENE
(all isomers)
3
980
840
to
990
a1
a1
b1
b1
c1
c1
v2
3
TOLUENE
3
870
TOLUENEDIAMINE
CH 3C 6H3(NH2)2
2
IOOO
a1
a2
b2
b3
c2
c3
v2
v3
TOLUENE DIISOCYANATE
CH3C6H3(NC0) 2
2
Sec. lS AllOO
T
Sec. lS A300 A400
1,1,2,2-TETRACHLOROETHYLENE
(see PERCHLOROETHYLENE)
1210
Sec.lS A202
A
12
T4
II A
A
c
p
T
T3
II B
A
p
T
str 0.3
A
A
str 0.3
str 0.3
A
p
A
D
T
••
p
T
v2
Sec.lS A300
A400 A900
Sec.17 BIO?
;I' JJ
a2
b3
v3
c3
11
12
12
str 0.3
Tl
II A
A
c
me
Sec.lS A202
A300 A400
Sec.17 BIO?
Sec.IS A20S
A300 A400 A800
Sec.17 BIO?
D
o-TOLUIDINE
CH 1 C,H4 NH,
2
1008
a2
b3
v3
c3
.
12
str 0.3
A
c
T
-
nm
Sec. IS A300 A400
::r"'
.-l>o
)>;;,
"" ::r
.)>,,,
"-·
I '-
.,,s.
., <
"'~
" to
"'to
toto
~
~
I
<
~
Tank Gauging
type system
Tank Ventivent
lation
system system
Ship
type
D
TRIBUTHYL PHOSPHATE
1,2,4-TRICHLOROBENZENE
C,H,Ch
1,1,1-TRICHLOROETHANE
1,1,2-TRICHLOROETHANE
CHCl,CH,Cl
TRICHLOROETHYLENE
CHCl:CC12
1,2,3-TRICHLOROPROPANE
CH,C!CHC!CH,Cl
1,1,2-TRICHLORO1,2,2-TRIFLUOROETHANE
3
2
980
1447
a1
a2
b1
b2
c1
c2
v2
v2
3
3
1460
1440
a1
a1
b1
b2
c1
c3
v2
v2
Name and chemical fonnula
Overflow
control
11
11
11
11
Cargo
stripping
Electrical equipment
Class
Group
str 0.1
str 0.1
Fire
protection
A
A
B
A
No
str 0.3
str 0.3
Vapour
hazard
.
Remarks
Special requirements
T
Sec. IS AllOO
<n:;rs.
·<
,,.
T
a1
b2
c3
v3
11
str 0.3
2
1389
a2
b3
c3
v3
12
str 0.3
3
about
1400
a1
b1
c1
v2
TRICRESYL PHOSPHATE
(containing less than
1 % ortho-isomer)
TRICRESYL PHOSPHATE
(containing 1 % or
more ortho-:isomer)
TRIDECANOIC ACID
TRIETHANOLAMINE
(CH,CH,OHhN
TRIETHYLAMINE
(CiH5)3N
2
1160
a2
b1
c1
v2
11
A
I
1160
a2
b3
c2
v2
12
B
Sec. IS A300 A400
3
3
8SO
1130
a1
a1
b1
b1
c1
c1
v2
v2
11
A
A
Sec. IS A1100
Sec.IS A202
2
720
a2
b2
c3
v2
TRIETHYLBENZENE
2
3
860
980
a2
a1
b1
b1
c1
c1
v2
v2
11
3
970
a1
b2
c3
v2
11
2
a2
b1
c1
v2
11
a1
b2
c2
v2
TRIETHYLENETETRAMINE
H,NcH,(CH,NHCH,),CH,NH,
TRIETHYLPHOSPHITE
(CH1CH,hP01
TRllSOPROPYLATED PHENYL
PHOSPHATES
str 0.3
str 0.1
ll A
No
T
B
D
No
T
Sec.IS A300
A400 ASOI
Sec.IS A300
A400 ASOI
·.
str 0.3
str 0.1
T2
ll A
T2
ll A
A
c
F
T
A
A
A
B
A
Sec.IS A203
A300 A400
Sec.17 B207
Sec.IS A202
F
T
TRIMETHYLACETIC ACID
(CH1hCCOOH
TRIMETHYLAMINE SOLUTION
(30% or less)
3
1100
to
1400
90S
2
900
a2
b3
c3
v2
12
A
c
F
T
TRIMETHYLBENZENE (all isomers)
TRIMETHYLHEXAMETHYLENEDIAMINE (2,2,4- and 2,4,4-isomers)
C0 H"N'
3
3
880
867
a1
a1
b2
b1
c2
c1
v2
v2
11
A
A
c
F
A
11
I~
~~
n '--
1460
ll A
m-
OQ
3
T2
"O :D
.,
c
~[
Sec.IS A207 BIOi
BI03-107
Sec.IS A202
B200
Sec.17 B107
Sec.IS A202
~
)>"'
"C " '
"C " '
'J,.
..
Name and chemical formula
TRIMETHYL HEXAMETHYLENE
DllSOCYANATE (2,2,4- and
2,4,4--isomers)
c,,H,.N,o,
2,2,4-TRIMETHYL1,3-PENTANEDIOL- 1-ISOBUTYRATE
Ship
type
D
2
1017
Tank Gauging
type system
a2
b3
Tank
vent
Venti-
c3
v3
lation
system system
Overflow
control
Cargo
stripping
f1
str 0.1
9SO
a1
b1
c1
v2
TRIMETHYL PHOSPHITE
(CH,OhP
3
1000
a1
b2
c3
v2
1,3,S-TRIOXANE
3
1170
a1
b2
c2
v2
f1
TRIXYLYL PHOSPHATE
1
llSO
3
860
UNDECANOIC ACID
3
890
1-UNDECENE
3
3
700
830
~
UREA AMMONIUM SOLUTION
(containing aqua ammonia)
3
10001300
a2
a1
a1
a1
a1
a1
b1
b2
b1
b1
b1
b2
c1
c2
c1
c1
c1
c2
v2
v2
v2
v2
v2
v2
f2
TURPENTINE
3
810
a1
b2
c2
v2
f1
~
V ALERALDEHYDE (all isomers)
CH 1 (CH,hCHO
VINYL ACETATE (inhibited)
CH 1 COOCHCH,
z
<
~
Fire
Vapour
protec- hazard
ti on
**
A
T
Remarh
Special requirements
Sec.IS A300
A400 AS02
c
3
UNDECYL ALCOHOL
Electrical equipment
Class
Group
str 0.3
A
f1
f1
f1
f1
A
D
A
D
F
T
F
A
str
str
str
str
str
0.1
0.1
0.1
0.1
0.3
str 0.3
A
F
A
A
A
A
T3
II B
A
Sec. IS AllOO
T
Sec. IS A20S A210
F
Sec. lS A501 A 700
T
3
940
a1
b1
c2
v2
f1
str 0.3
T2
II A
A
VINYL ETHYL ETHER (inhibited)
CHzCHOCzH5
2
770
a3
b3
c2
v2
f2
str 0.3
T3
II B
A
VINYLIDENE CHLORIDE (inhibited)
cH,cc1,
VINYL NEODECANOATE (inhibited)
2
F
F
T
12SO
a2
b2
c2
v2
f1
T2
3
880
VINYLTOLUENE (inhibited)
CH 7 CHC0 H,CH1
WHITE SPIRIT, low (IS-20%)
aromatic
3
890
a1
a1
b1
b2
c1
c2
v2
v2
f1
2
7SO
a2
b2
c2
v2
f1
str 0.1
a1
a1
a1
b2
b1 .
b1
c2
c1
c1
v2
v2
v2
f1
f1
str 0.3
str 0.1
str 0.3
XYLENES
3
890
XYLENOL
3
1040
ZINC ALKARYL
DITHJOPHOSPHATE (C7 -C, 0 )
3
1000
ZINC ALKYL
DITHIOPHOSPHATE (C3-C1>j)
3
lOSO
to
1100
a1
b1
c1
v2
f1
f1
II A
str 0.1
T
Sec. IS A206 B200
Sec.17 B107
Sec. IS ASOl
B
F
Sec.IS A202
A
F
A
F
B
B
II A
str 0.1
F
II A
Sec.lS A209
A700, B200,
C200
Sec.17 B107
B
A
B
A
B
~:D
Sec. IS ~1100
'
"1c
-
nro
:y"'
. 0
...
l>~
" :y
"-·
.l>"'"
I '-
-c £.
"'-<
"' ~
"C>"'"'
~co
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