SKC 233 Series, 240 Series, 243 Series, 253 Series, 263 Series Operating Instructions Manual

Operating Instructions

863 Valley View Road, Eighty Four, PA 15330 USA

Tel: [phone] • www.skcinc.com

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 fitting. The hose
connection, shut-off valve, and syringe port with 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 after 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 Proper Bag Infl ation for details).

®

7. Due to the physical properties of FlexFoil
creases may appear on the bags during SKC manufacturing, quality testing,
and user handling. These marks only aff ect the aesthetics of the bag and not
its performance. FlexFoil bags exhibiting minor crimps and creases are not
subject to replacement or refund as functionality is not aff ected.

bag material, minor crimps and

Notes and 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).

• SKC bag fi  ing 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.

• Failure to follow warnings and cautions voids any warranty.

• Sample bags are designed for single use only.

12:42 03/15/2017

0.0 inH 2o

00:01:42

250

ml
min

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.

The outside diameter of the syringe needle should not
be larger than 12 gauge (0.109 inch).

Do not allow the syringe needle to puncture the bag
material when piercing the septum.

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.

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

SKC sample bags are available in Tedlar, Standard FlexFoil®, and FlexFoil PLUS with
fi ttings 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 [e-mail].

For sample bag stability reports,

visit www.skcinc.com/bags.asp.

Accessories

Replacement Septa, pk/10........................................................................................ Cat. No. 233-01-RS

PTFE Tubing, fi ts over bag fi tting and pump exhaust,

3/16-inch ID, 1/4-inch OD, 10 feet ................................................................................. Cat. No. 231-9-23

PTFE Tubing, fi ts inside bag fi tting, 1/16-inch ID, 1/8-inch OD, 10 feet .......................Cat. No. 231-9-21

PTFE Tubing, fi ts Vac-U-Chamber sample inlet port,

1/4-inch ID, 5/16-inch OD ......................................................................... 10 feet ......... Cat. No. 231-937

50 feet ......... Cat. No. 231-924

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 h p://www.skcinc.com/
warranty.asp.

www.skcinc.com

Form 37147 Rev 1803