Single Polypropylene Fitted Bags Cat. Nos. 232 - Air

Single Polypropylene Fitted Bags Cat. Nos. 232 - Air
Operating Instructions
863 Valley View Road, Eighty Four, PA 15330 USA
Tel: 724-941-9701 Fax: 724-941-1369 e-mail: [email protected]
Single Polypropylene Fitted Bags
232, 236, 252, and 262 Series Sample Bags
The 232, 236, 252, and 262 Series sample bags feature a single polypropylene fitting
that is used for both filling the bag and removing the sample for analysis. The fitting
contains a syringe port with silicone septum and a hose connection and acts as a
valve to open or close the hose connection.
Guidelines for Bag Sampling
1.
Ensure that the bag material and fittings are appropriate for the
compounds to be sampled.
2.
Use only PTFE tubing to connect the sample bag to the pump to prevent
sample loss by adsorption on tubing walls.
3.
Before using, flush the bag thoroughly with purified air or nitrogen.
4.
Analyze the sample within 24 to 48 hours. Long-term storage of aircontaminant mixtures in bags is not recommended.
5.
Do not ship sample bags by air unless the cargo cabin is pressurized.
6.
Inflate bag properly; see page 3 for details.
FlexFoil Bag Note: Due to the physical properties of foil bag material, minor crimps
and creases may appear on the bags during SKC manufacturing and quality testing,
as well as, user handling. These marks only affect the aesthetics of the bag and not
its performance. Foil bags exhibiting minor crimps and creases are not subject to
replacement or refund as functionality is not affected.
Cautions
Do not use sample bags to sample compounds with boiling points > 249.8 F (121 C).
SKC sample bags are designed for sampling air at atmospheric pressure only.
Attempting to pressurize the bag can result in bag rupture and sample loss. Do not
ship bag samples by air freight in non-pressurized cargo cabin. Bags can burst under
such conditions.
All federal and state packaging and transporting regulations apply.
Failure to follow warnings and cautions voids any warranty.
Sample bags are designed for single use only.
Operation
1.
Flush the bag at least 3 times with purified air or nitrogen before use.
2.
To fill a bag, connect PTFE tubing from the exhaust port of an air sample
pump to the hose connection on the bag (the side stem protruding from the
polypropylene fitting).
3.
To open the valve, hold the side stem and turn the
entire upper portion of the fitting (including the
brown or white septum cap and the white septum
body to which it is attached) counterclockwise
one revolution. Turn on the pump and sample
(see Proper Bag Inflation).
CAUTION: Do not turn side stem.
Do not use sample bags to sample compounds
with boiling points > 249.8 F (121 C).
4.
When sampling is complete, turn off the pump.
To close the valve, hold the side stem and turn
the entire upper portion of the fitting (including
the brown or white septum cap and the white
septum body to which it is attached) clockwise
until it is snug.
5.
To withdraw samples using a needle and syringe,
carefully insert the needle into the syringe port
in the center of the brown or white septum cap
and pierce the septum.
Do not allow the needle to puncture the bag
material when piercing the septum.
2
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Valves
SKC bag fitting valves are extremely durable but are not intended for use as handles
or hanging devices. This type of handling may damage the seal, causing leakage.
This is considered to be misuse and will void the SKC warranty.
Proper Bag Inflation
Avoid filling any bag more than 80% of its maximum volume. At the end of the
sampling period, turn off the pump and close the valve on the bag.
Incorrect
Inflation
Correct
Inflation
Filling Bags Using Negative Pressure
The SKC Vac-U-Chamber is a rigid air sample box that allows the direct filling of
an air sample bag using negative pressure provided by most personal air sample
pumps. When using the Vac-U-Chamber, the air sample enters the bag directly,
without passing through the pump. This eliminates the risk of contaminating the
pump or sample. The Vac-U-Chamber has rigid walls that will not collapse under
vacuum conditions, thus eliminating possible errors. All surfaces in contact with
samples are constructed of inert materials.
Small Vac-U-Chamber (supplied without pump) with polypropylene fittings;
suitable for use with 1-liter bags .................................................................Cat. No. 231-940
Large Vac-U-Chamber (supplied without pump) with stainless steel fittings;
suitable for use with 8-liter bags .................................................................Cat. No. 231-939
Extra-large Vac-U-Chamber (supplied without pump) with stainless steel fittings;
suitable for use with 10-liter bags ...............................................................Cat. No. 231-944
Jumbo Vac-U-Chamber (supplied without pump) with stainless steel fittings;
suitable for use with 25-liter bags ...............................................................Cat. No. 231-946
See Accessories on page 4 for tubing.
SKC sample bags are available in Tedlar®, FluoroFilm FEP, SamplePro
FlexFilm, Standard FlexFoil®, and FlexFoil PLUS with fittings made of stainless
steel, polypropylene, or PTFE in sizes ranging from 0.5 to 100 liters. SKC
also manufactures custom sample bags. Contact SKC at 724-941-9701 or
[email protected]
For sample bag stability reports, visit
http://www.skcinc.com/catalog/pdf/instructions/1805.pdf.
3
Accessories
PTFE Tubing, fits over bag fitting and Grab Air pump exhaust,
3/16-inch ID, 1/4-inch OD ......................................................... 10 feet ....Cat. No. 231-9-23
PTFE Tubing, fits inside bag fitting,
1/16-inch ID, 1/8-inch OD ......................................................... 10 feet ....Cat. No. 231-9-21
PTFE Tubing, fits Vac-U-Chamber inlet and 222 pump exhaust,
1/4-inch ID, 5/16-inch OD .......................................................... 10 feet .....Cat. No. 231-937
50 feet .....Cat. No. 231-924
Twin Port Pocket Pump Tubing Adapter Kit includes two
lengths of silicone tubing: 1/8-inch ID, 1/4-inch OD for bag
fitting and 3/16-inch ID, 3/8-inch OD for pump fitting; use with
Cat. No. 231-9-23 PTFE tubing (above) .................................................... Cat. No. 231-926
For more product information or assistance with applications, contact
SKC Technical Service at [email protected]
SKC Limited Warranty and Return Policy
SKC products are subject to the SKC Limited Warranty and Return Policy, which
provides SKC’s sole liability and the buyer’s exclusive remedy. To view the complete SKC Limited Warranty and Return Policy, go to http://www.skcinc.com/
warranty.asp.
www.skcinc.com
Form 3781 Rev 1501
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