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**************************************************************************
USACE / NAVFAC / AFCEC / NASA
UFGS-13 21 48 (April 2006)
-------------------------Preparing Activity: NAVFAC
Replacing without change
UFGS-13034 (August 2004)
UNIFIED FACILITIES GUIDE SPECIFICATIONS
References are in agreement with UMRL dated January 2016
**************************************************************************
SECTION TABLE OF CONTENTS
DIVISION 13 - SPECIAL CONSTRUCTION
SECTION 13 21 48
PREFABRICATED AUDIOMETRIC ROOMS
04/06
PART 1
GENERAL
1.1
REFERENCES
1.2
RELATED REQUIREMENTS
1.3
PERFORMANCE REQUIREMENTS
1.3.1
Noise Dampening Performance
1.4
SUBMITTALS
PART 2
PRODUCTS
2.1
GENERAL CHARACTERISTICS
2.2
MATERIALS AND CONSTRUCTION
2.2.1
Walls and Roof Panels
2.2.2
Floor Panel
2.2.3
Vibration Isolation
2.2.4
Door
2.2.5
Wall and Corner Joiners
2.2.6
Acoustical Fill
2.2.7
Windows
2.3
UTILITY FEATURES
2.3.1
Jack Panel
2.3.2
Ventilation System
2.3.3
Electrical System
2.3.4
Floor Covering
2.3.5
Finish
2.4
MULTIPOSITION TEST CHAMBERS
2.5
ITEMS
2.5.1
Item [_____], [_____]:
2.5.1.1
Include the following:
2.5.2
Item M-0250, Audiometric Testing Room
2.5.3
Item M-0300, Audiometric Examination Booth
PART 3
EXECUTION
3.1
INSTALLATION
3.1.1
[Audiometric Testing Rooms] [and] [Examination Booths]
SECTION 13 21 48
Page 1
3.2
FIELD QUALITY CONTROL
3.2.1
Inspection
-- End of Section Table of Contents --
SECTION 13 21 48
Page 2
**************************************************************************
USACE / NAVFAC / AFCEC / NASA
UFGS-13 21 48 (April 2006)
-------------------------Preparing Activity: NAVFAC
Replacing without change
UFGS-13034 (August 2004)
UNIFIED FACILITIES GUIDE SPECIFICATIONS
References are in agreement with UMRL dated January 2016
**************************************************************************
SECTION 13 21 48
PREFABRICATED AUDIOMETRIC ROOMS
04/06
**************************************************************************
NOTE: This guide specification covers the
requirements for prefabricated audiometric rooms.
Adhere to UFC 1-300-02 Unified Facilities Guide
Specifications (UFGS) Format Standard when editing
this guide specification or preparing new project
specification sections. Edit this guide
specification for project specific requirements by
adding, deleting, or revising text. For bracketed
items, choose applicable items(s) or insert
appropriate information.
Remove information and requirements not required in
respective project, whether or not brackets are
present.
Comments, suggestions and recommended changes for
this guide specification are welcome and should be
submitted as a Criteria Change Request (CCR).
**************************************************************************
**************************************************************************
NOTE: The following information shall be shown on
the project drawings:
1.
Location of equipment
a.
Location of the space to be used for testing;
b.
The size of the space:
length X width X height;
c. A plan view of the space to determine the
location of the window and the door swing;
d.
Electric outlets;
e.
The power supply access.
f.
The number of chamber positions.
2.
Site selection ambient noise measurement:
SECTION 13 21 48
Page 3
a. The ambient noise levels in the selected site
shall be measured prior to the installing of
audiometric test chamber. The octave-band levels
shall not exceed the values given in the following
table:
Octave-band Center
Frequency-Hz
125
250
500
1000 2000 4000 8000
Exterior (outside
room) ambient noise
level in db
65
61
61
80
90
95
95
**************************************************************************
PART 1
GENERAL
1.1
REFERENCES
**************************************************************************
NOTE: This paragraph is used to list the
publications cited in the text of the guide
specification. The publications are referred to in
the text by basic designation only and listed in
this paragraph by organization, designation, date,
and title.
Use the Reference Wizard's Check Reference feature
when you add a RID outside of the Section's
Reference Article to automatically place the
reference in the Reference Article. Also use the
Reference Wizard's Check Reference feature to update
the issue dates.
References not used in the text will automatically
be deleted from this section of the project
specification when you choose to reconcile
references in the publish print process.
**************************************************************************
The publications listed below form a part of this specification to the
extent referenced. The publications are referred to within the text by the
basic designation only.
ACOUSTICAL SOCIETY OF AMERICA (ASA)
ASA S3.1
(1999; R 2013) Maximum Permissible Ambient
Noise Levels for Audiometric Test Rooms
(ASA 99)
ASTM INTERNATIONAL (ASTM)
ASTM C423
(2009a) Sound Absorption and Sound
Absorption Coefficients by the
Reverberation Room Method
SECTION 13 21 48
Page 4
ASTM D2859
(2015) Ignition Characteristics of
Finished Textile Floor Covering Materials
ASTM E596
(1996; R 2009) Laboratory Measurement of
Noise Reduction of Sound-Isolating
Enclosures
ASTM E648
(2014c) Standard Test Method for Critical
Radiant Flux of Floor-Covering Systems
Using a Radiant Heat Energy Source
ASTM E84
(2015b) Standard Test Method for Surface
Burning Characteristics of Building
Materials
NATIONAL ASSOCIATION OF ARCHITECTURAL METAL MANUFACTURERS (NAAMM)
NAAMM AMP 500
(2006) Metal Finishes Manual
U.S. DEPARTMENT OF DEFENSE (DOD)
MIL-STD-1691
(1994; Rev F) Construction and Material
Schedule for Military Medical and Dental
Facilities
UNDERWRITERS LABORATORIES (UL)
UL 6
1.2
(2007; Reprint Nov 2014) Electrical Rigid
Metal Conduit-Steel
RELATED REQUIREMENTS
Conform to Section 11 70 00 GENERAL REQUIREMENTS FOR MEDICAL AND DENTAL
EQUIPMENT. Provide the final utility connections and utility service to the
equipment in accordance with Section 23 03 00.00 20 BASIC MECHANICAL
MATERIALS AND METHODS; Section 26 00 00.00 20 BASIC ELECTRICAL MATERIALS
AND METHODS; and Section 26 20 00 INTERIOR DISTRIBUTION SYSTEM.
1.3
1.3.1
a.
PERFORMANCE REQUIREMENTS
Noise Dampening Performance
Noise reduction: The noise reduction from the outside to the inside of
a properly installed audiometric test chamber, as tested in accordance
with ASTM E596 and performed in a recognized, independent and approved
laboratory, shall be not less than the values in the following table:
Octave-band Center
Frequency-Hz
125
250
500
1000
2000
4000
8000
Noise reduction in dB
24
30
40
50
55
55
55
b.
Sound absorption: The sound absorption of the composite metal and
sound-absorbing panel assembly, as tested in accordance with ASTM C423
and performed in a recognized independent and approved laboratory,
shall not be less than the values in the following table:
SECTION 13 21 48
Page 5
Government approval is required for submittals with a "G" designation;
submittals not having a "G" designation are [for Contractor Quality Control
approval.][for information only. When used, a designation following the
"G" designation identifies the office that will review the submittal for
the Government.] Submittals with an "S" are for inclusion in the
Sustainability Notebook, in conformance to Section 01 33 29 SUSTAINABILITY
REPORTING. Submit the following in accordance with Section 01 33 00
SUBMITTAL PROCEDURES:
Conform to submittal requirements of Section 11 70 00 GENERAL REQUIREMENTS
FOR MEDICAL AND DENTAL EQUIPMENT.
SD-02 Shop Drawings
[
M-0250, audiometric testing room]
[
M-0300, audiometric examination booth]
SD-03 Product Data
M-0250, audiometric testing room
M-0300, audiometric examination booth
SD-04 Samples
**************************************************************************
NOTE: All available item specifications applicable
to this section have been furnished in joint
schedule number (JSN) alpha-numerical order. The
JSN is referenced from MIL-STD-1691.
**************************************************************************
**************************************************************************
NOTE: Delete any items not used, and add additional
items as required.
**************************************************************************
[
M-0250, audiometric testing room; G[, [_____]]]
[
M-0300, audiometric examination booth; G[, [_____]]]
SD-06 Test Reports
Noise reduction test
Sound absorption test
Interior noise level test
Submit test reports indicating compliance with the performances
listed in paragraph entitled "Performance Requirements."
SD-07 Certificates
**************************************************************************
NOTE: All item specifications applicable to this
section have been furnished in joint schedule number
SECTION 13 21 48
Page 7
Government approval is required for submittals with a "G" designation;
submittals not having a "G" designation are [for Contractor Quality Control
approval.][for information only. When used, a designation following the
"G" designation identifies the office that will review the submittal for
the Government.] Submittals with an "S" are for inclusion in the
Sustainability Notebook, in conformance to Section 01 33 29 SUSTAINABILITY
REPORTING. Submit the following in accordance with Section 01 33 00
SUBMITTAL PROCEDURES:
Conform to submittal requirements of Section 11 70 00 GENERAL REQUIREMENTS
FOR MEDICAL AND DENTAL EQUIPMENT.
SD-02 Shop Drawings
[
M-0250, audiometric testing room]
[
M-0300, audiometric examination booth]
SD-03 Product Data
M-0250, audiometric testing room
M-0300, audiometric examination booth
SD-04 Samples
**************************************************************************
NOTE: All available item specifications applicable
to this section have been furnished in joint
schedule number (JSN) alpha-numerical order. The
JSN is referenced from MIL-STD-1691.
**************************************************************************
**************************************************************************
NOTE: Delete any items not used, and add additional
items as required.
**************************************************************************
[
M-0250, audiometric testing room; G[, [_____]]]
[
M-0300, audiometric examination booth; G[, [_____]]]
SD-06 Test Reports
Noise reduction test
Sound absorption test
Interior noise level test
Submit test reports indicating compliance with the performances
listed in paragraph entitled "Performance Requirements."
SD-07 Certificates
**************************************************************************
NOTE: All item specifications applicable to this
section have been furnished in joint schedule number
SECTION 13 21 48
Page 7
(JSN) alpha-numerical order. The JSN is referenced
from MIL-STD-1691.
**************************************************************************
**************************************************************************
NOTE: Delete any items not used, and add additional
items as required.
**************************************************************************
[
M-0250, audiometric testing room]
[
M-0300, audiometric examination booth]
Include written certification that the test data were taken on
sample components identical to the material supplied under this
specification.
SD-10 Operation and Maintenance Data
M-0250, audiometric testing room, Data Package 3; G[, [_____]]
M-0300, audiometric examination booth, Data Package 3; G[, [_____]]
Submit in accordance with Section 01 78 23 OPERATION AND
MAINTENANCE DATA.
PART 2
2.1
PRODUCTS
GENERAL CHARACTERISTICS
a.
The manufacturer shall certify the audiometric testing [room] [booth]
as a quiet environment for the testing of hearing.
b.
Construct the audiometric testing [room] [booth] of modular panels to
allow expeditious installation and relocation of the booths.
c.
Equip the audiometric testing [room] [booth] with a window, an
audiometric jack panel underneath the window, an inside light, and a
ventilation system.
d.
Design the [room] [booth] to allow for installation within 4 inches of
walls.
2.2
MATERIALS AND CONSTRUCTION
[Single wall] [Double wall].
2.2.1
Walls and Roof Panels
Construct the walls and roof panels as a multilayered sandwich of
acoustical materials. The overall thickness of the panels shall be 100 mm
4 inches. The outer panels shall be 16 gage, cold-rolled steel. The inner
surface shall be 22 gage, cold-rolled steel with 2 mm 3/32 inch
perforations at 5 mm 3/16 inch staggered-on-centers. Frame the panels
using 16 gage channels with continuous arch-welded joints. The average
weight of the panels shall be a minimum of 50 kg per square meter 10 pounds
per square foot. The total weight of the panel shall be a maximum of 182 kg
400 pounds.
SECTION 13 21 48
Page 8
2.2.2
Floor Panel
Construct the floor panel as a multilayered sandwich of materials to allow
for the support of a load of 240 kg per sq m 50 pounds per square foot.
The overall thickness of the floor shall be 100 mm 4 inches. The walking
surface shall consist of a minimum of 11 gage, corrosion-resistant steel;
the bottom surface shall consist of a minimum of 16-gage steel,
structurally reinforced. The average weight of the floor panel shall be a
minimum of 50 kg per sq m 10 pounds per square foot. The total weight of
the panel shall be a maximum of 182 kg 400 pounds.
2.2.3
Vibration Isolation
Provide vibration isolation by mounting the audiometric test chamber
mounted on vibration isolation rails, consisting of rubber-in-shear
isolators mounted to 75 mm 3 inch structural channels for weight
distribution. The vibration isolators shall have a natural resonant
frequency of 6 1/4 Hz for maximum elimination of structure-borne vibration.
2.2.4
Door
The door shall be acoustically sealed and provide a minimum clear opening of
810 mm 32 inches. Unless otherwise indicated, the door shall be hinged on
the right (facing outward) and shall swing out of the chamber. The door
shall be constructed using materials similar to those used for the wall
panels. Equip the door with two magnetic compression seals spaced to
provide dead airspace. Equip the bottom of the door with either a
gravity-activated seal or a compression seal activated by a cam seating of
the door within the frame. Provide either surface mounted or butt-type
hinges. If butt-type hinges are used, the magnetic seals shall not be
broken by the hinges. The hinges shall contain a cam-lift mechanism to
ensure proper seating of the door.
2.2.5
Wall and Corner Joiners
All wall and roof panels shall be acoustically and structurally joined
together using a member shaped according to the corner or joint
configuration. The member shall be made of 16-gage steel and shall be made
to allow for the use of pop rivets or sheet metal screws to fasten it in
place. The dead airspace between the panels and the member shall be filled
with acoustical material and shall be caulked for air-tight integrity.
2.2.6
Acoustical Fill
Fill all panels, walls, and doors with inert mildew- and vermin-resistant
acoustical attenuating and absorbing material. When tested in accordance
with ASTM E84, the material shall have maximum fire hazard ratings of 25
for flame spread, zero for fuel contribution, and 50 for smoke density.
2.2.7
Windows
600 mm wide by 760 mm 24 inches wide by 30 inches high, double-glazed,
using 6 mm 1/4 inch safety glass. Mount glass with acoustically tight
rubber gaskets.
2.3
2.3.1
UTILITY FEATURES
Jack Panel
The jack panel shall be insulated and shall contain six 3 wire, phone-type
SECTION 13 21 48
Page 9
jacks with covers with one three-pin and one four-pin connector per panel,
in accordance with the manufacturers standard. Each phone jack shall be
insulated from the booth and from the other jacks. The jack panels shall
be designed to preserve the acoustical integrity of the room.
2.3.2
Ventilation System
The ventilation system shall be incorporated into the roof panel, except
where a multiposition chamber is specified the vent system shall be
incorporated into the wall. The silencer for the ventilation system shall
not intrude into the room. The noise from the ventilation system shall be
below the threshold of hearing when measured 900 mm 3 feet from the
opening. The airflow shall be a minimum of 50 L/s 100 cubic feet per minute,
except where a multiposition chamber is specified.
2.3.3
Electrical System
Equip the chamber with a recessed 110 volt light fixture with a 40 watt
incandescent lamp, except in multiposition test chambers, where indicated.
The chamber shall be prewired and shall include switches mounted 1400 mm 4
feet 8 inches above the floor, opposite the side of the door hinges for the
light fixture and the ventilation fan. Electrical components shall be UL
approved. Factory installed internal wiring shall be in rigid conduits
conforming to UL 6, concealed in the chamber. Wiring shall extend to the
outside of the enclosure connecting to a prewired electrical harness
terminating in a 4 meter 12 footpowercord with a hospital grade plug.
Provide convenience outlets as indicated.
2.3.4
Floor Covering
Cover the floor with a 100-percent, continuous-filament nylon carpet on a
pad. The carpet and pad system shall comply with ASTM D2859 and shall have
a minimum average critical radiant flux of 0.25 watt per square centimeter
when measured in accordance with ASTM E648.
2.3.5
Finish
Exposed sheet metal surfaces shall be cleaned and degreased. Fill and
grind welds smooth. Prime metal with a rust-inhibiting chromate modified
alkyd primer. The finish coat shall be an acrylic enamel-type paint. The
quality standards of the NAAMM AMP 500 National Association of
Architectural Metal Manufacturers shall apply. Color shall be selected from
the manufacturers color standards.
2.4
MULTIPOSITION TEST CHAMBERS
The following additional requirements shall be provided:
a.
The jack panels shall provide two 3-wire phone jacks per position. The
wiring for the group system jacks shall be Contractor-furnished but
Government-installed.
b.
Each position within the test chamber shall be divided by a heavy
canvas divider.
c.
Provide metal stools with upholstered tops.
d.
Vibration isolator rails shall extend the full length of the long
dimension of the test chamber.
SECTION 13 21 48
Page 10
e.
Ventilation systems shall be installed on the exterior walls. The
airflow shall be a minimum of 140 L/s 300 cubic feet per minute for 4
position rooms, 210 L/s 450 cubic feet per minute for 6 position rooms,
and 240 L/s 500 cubic feet per minute for 10 position rooms.
f.
The window shall be mounted in the door.
2.5
ITEMS
Items are listed by joint schedule number (JSN) referenced from MIL-STD-1691.
**************************************************************************
NOTE:
1. All available item specifications applicable to
this section have been furnished in joint schedule
number (JSN) alpha-numerical order. The JSN is
referenced from MIL-STD-1691.
2. Delete any items not used, and add additional
items as required.
**************************************************************************
**************************************************************************
NOTE: The first paragraph following is a sample
guide to be used in generating an item
specification. The item number should correspond
with the JSN used on the schedule. If no JSN is
available, have the item number correspond with the
appropriate identification code used on the contract
documents.
**************************************************************************
2.5.1
Item [_____], [_____]:
**************************************************************************
NOTE: In paragraph entitled "Item [_____], [_____]"
insert the item identification number and the item
name in the first blank space, respectively. Insert
a description of the item in the second blank space
to determine the type of product required. Avoid
repetition of detailed information which is to
appear in the salient features listed thereafter. In
paragraphs entitled "Item M-0250, Audiometric
Testing Room" and "Item M-0300, Audiometric
Examination Booth" use the second bracketed option
for double wall construction.
**************************************************************************
The unit shall be [[_____].]
2.5.1.1
Include the following:
[a.
[_____].]
[b.
[_____].]
[c.
[_____].]
SECTION 13 21 48
Page 11
2.5.2
Item M-0250, Audiometric Testing Room
**************************************************************************
NOTE: In paragraph entitled "Item [_____], [_____]"
insert the item identification number and the item
name in the first blank space, respectively. Insert
a description of the item in the second blank space
to determine the type of product required. Avoid
repetition of detailed information which is to
appear in the salient features listed thereafter. In
paragraphs entitled "Item M-0250, Audiometric
Testing Room" and "Item M-0300, Audiometric
Examination Booth" use the second bracketed option
for double wall construction.
**************************************************************************
The audiometric testing room shall be prefabricated; approximately [1980 mm
high by 2100 mm wide by 2235 mm deep inside, 2235 mm high by 2340 mm wide
by 2440 mm deep outside,] [1980 mm high by 2100 mm wide by 2235 mm deep
inside, 2235 mm high by 2740 mm wide by 2840 mm deep outside,] [78 inches
high by 84 inches wide by 88 inches deep inside, 88 inches high by 92
inches wide by 96 inches deep outside,] [78 inches high by 84 inches wide
by 88 inches deep inside, 96 inches high by 108 inches wide by 112 inches
deep outside,] and shall have a continuous ventilating system and a shelf
mounted on the outer wall beneath the observation window.
2.5.3
Item M-0300, Audiometric Examination Booth
**************************************************************************
NOTE: In paragraph entitled "Item [_____], [_____]"
insert the item identification number and the item
name in the first blank space, respectively. Insert
a description of the item in the second blank space
to determine the type of product required. Avoid
repetition of detailed information which is to
appear in the salient features listed thereafter. In
paragraphs entitled "Item M-0250, Audiometric
Testing Room" and "Item M-0300, Audiometric
Examination Booth" use the second bracketed option
for double wall construction.
**************************************************************************
The audiometric examination booth shall be prefabricated; approximately
[1980 mm high by 1000 mm wide by 900 mm deep inside, 2235 mm high by 1200
mm wide by 1120 mm deep outside,] [1980 mm high by 1000 mm wide by 900 mm
deep inside, 2440 mm high by 1625 mm wide by 1500 mm deep outside,] [78
inches high by 40 inches wide by 36 inches deep inside, 88 inches high by
48 inches wide by 44 inches deep outside,] [78 inches high by 40 inches
wide by 36 inches deep inside, 96 inches high by 64 inches wide by 60
inches deep outside,] and shall have a continuous ventilation system and a
shelf mounted on the outside wall beneath the observation window.
PART 3
3.1
EXECUTION
INSTALLATION
**************************************************************************
NOTE: Provide a ramp of sufficient size to
SECTION 13 21 48
Page 12
facilitate the use of wheeled equipment.
**************************************************************************
Install the items at the locations indicated. Conform to the installation
requirements of Section 11 70 00 GENERAL REQUIREMENTS FOR MEDICAL AND
DENTAL EQUIPMENT.
3.1.1
[Audiometric Testing Rooms] [and] [Examination Booths]
Assemble the [audiometric testing rooms] [and] [examination booths] on the
site using prefabricated panels, doors, windows, ventilation silencers, and
assembly hardware, meeting all the requirements specified in this section.
3.2
3.2.1
FIELD QUALITY CONTROL
Inspection
Examine each item for visual defects, and correct all defects to conform to
the specifications.
-- End of Section --
SECTION 13 21 48
Page 13
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