Operating Instructions
Tel: 724-941-9701 Fax: 724-941-1369 e-mail: skctech@skcinc.com
863 Valley View Road, Eighty Four, PA 15330 USA
Single Stainless Steel or PTFE Fitted Bags
233, 240, 243, 253, and 263 Series Sample Bags
These sample bags feature a single stainless steel or PTFE fi ing. The hose connection,
shut-off valve, and syringe port with PTFE-lined septum are all contained within
the single-port fi ing.
Guidelines for Bag Sampling
1. Ensure that the bag material and fi ings are appropriate for the compounds
to be sampled.
2. Use only PTFE tubing to connect the bag to the pump to prevent sample loss
by adsorption on tubing walls.
3. Before using, fl ush the bag thoroughly with purifi ed air or nitrogen.
4. Analyze the sample within 24 to 48 hours a er sampling. Long-term storage
of air-contaminant mixtures in bags is not recommended.
5. Do not ship sample bags by air unless the cargo cabin is pressurized.
6. Infl ate bag properly; see page 2 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
SKC sample bags are designed for sampling air at atmospheric pressure only.
A empting to pressurize the bag will result in bag rupture and sample loss. Do not
ship bag samples by air freight in a non-pressurized cargo cabin. Bags can burst
under such conditions.
All federal and state packaging and transporting regulations apply.
Do not use sample bags to sample compounds with boiling points > 249.8 F (121 C).
Failure to follow warnings and cautions voids any warranty.
Sample bags are designed for single use only.
¨
000277
Operation
1. Flush the bag at least 3 times
with purifi ed air or nitrogen
before use.
2. To fi ll a bag, connect PTFE
tubing from the exhaust port
of an air sample pump to the
stem on the bag fi ing.
3. To open the valve, turn the knurled disc on the stem
counterclockwise a maximum of 2 revolutions. Turn on the
pump and sample as usual (see Proper Bag Infl ation).
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 and close
the valve by turning the knurled disc clockwise until snug.
5. To withdraw samples using a needle and
syringe, carefully insert the needle into the
stem and pierce the septum centered in the
base of the syringe port.
Do not allow the needle to puncture the bag
material when piercing the septum.
Proper Bag Infl ation
Avoid fi lling any bag to more than 80% of its maximum volume. At the end of the
sampling period, turn off the pump and close the valve by turning the knurled disc
clockwise until snug.
Incorrect
Infl ation
Correct
Infl ation
2
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