SKC 239 User Manual

Operating Instructions

Tel: [phone] Fax: [phone] e-mail: [e-mail]

863 Valley View Road, Eighty Four, PA 15330 USA

Breath-gas Analysis Bags

Cat. Nos. 249-01, 259-01, and 269-01

SKC Breath-gas Analysis Bags are ideal for collecting and storing human breath
samples. The samples are subsequently analyzed for volatile organic compounds
(VOCs) or volatile sulfur compounds (VSCs). Breath-gas Analysis Bags are
constructed of FlexFoil
stainless steel breath-gas fi  ing with plastic mouthpiece allows easy sample collection
and facilitates sample removal by gas-tight syringe for gas chromatography (GC)
analysis.

®

PLUS, SamplePro® FlexFilm, or Tedlar® material. The special

Guidelines for Bag Sampling

1. Long-term storage of samples in bags is not recommended.

2. SKC sample bags are designed for sampling air at atmospheric pressure only.
A empting to pressurize the bag can 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.

3. All federal and state packaging and transporting regulations apply.

4. Failure to follow warnings and cautions voids any warranty.

5. Do not reuse sample bags.

6. Due to the physical properties of the FlexFoil bag material, minor crimps
and creases may appear on bags during 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.

7. Store SamplePro FlexFilm bags fl at. Do not roll or crease bags during storage.

8. Do not use sample bags to sample compounds with boiling points > 249.9 F
(121 C).

Wear gloves when handling the bag and fi ttings (photos are shown without gloves for clarity).

Preparing the Fitting

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1. Remove the clean, single-use plastic mouthpiece

from packaging.

2. A ach the plastic mouthpiece to the stainless steel
breath-gas fi  ing on the bag by gently pushing
the narrow end of the mouthpiece down onto the
fi  ing until snug.

Sampling

1. Open the fi  ing by placing the bag on a fl at surface
and turning the knurled disc on the stainless
steel fi  ing counterclockwise a maximum of two
revolutions. The fi  ing is now open.

2. Provide breathing instructions to the test subject,
have subject place lips on the plastic mouthpiece,
and blow accordingly to collect the desired
sample volume.

Do not over-infl ate the sample bag (see graphic below).

Incorrect Correct

3. Immediately remove the mouthpiece from the
lips of the test subject and close the breath-gas
fi  ing by turning the knurled disc clockwise until
snug. The fi  ing is now closed.

4. Remove plastic mouthpiece by grasping the
stainless steel breath-gas fitting with one
hand and gently pulling/twisting the plastic
mouthpiece with the other hand.

5. The single-use mouthpieces may be disposed of
in regular trash.

Shipping

1. If sending the bag(s) containing the breath-gas sample(s) to a laboratory for
analysis, place bag(s) in the original packaging and ship.

Removing the Sample from the Bag

1. Using a gas-tight syringe and needle, carefully insert the needle into the septum
port in the center of the stainless steel breath-gas fi  ing and pierce the septum.

2. Use the syringe to withdraw the sample.

3. Analyze the sample.

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

Reference

Mochalski, P., Wzorek, B., Sliwka, I., and Amann, A., Suitability of Diff erent Polymer Bags for Storage
of Volatile Sulfur Compounds Relevant to Breath Analysis, Journal of Chromatography B, Vol. 877,
Issue 3, Jan. 15, 2009, pp. 189-196, h p://dx.doi.org/10.1016/j.jchromb.2008.12.003

Ordering Information

Description Cat. No.

1-liter Breath-gas Bags, includes 5 bags

and 5 individually packaged clean mouthpieces

Replacement Mouthpieces, pk/10 P20054

SKC sample bags for other applications are available in Tedlar, Standard FlexFoil,
FlexFoil PLUS, FluoroFilm FEP, and SamplePro FlexFilm material with fi ttings made of
stainless steel, polypropylene, or PTFE in sizes up to 100 liters. SKC also manufactures
custom sample bags. Contact SKC at 724-941-9701 or [e-mail].

For sample bag stability data, see http://www.skcinc.com/instructions/1805.pdf.

For more information or assistance with applications, contact

SKC Technical Service at [e-mail].

Tedlar
SamplePro FlexFilm
FlexFoil PLUS

249-01
259-01
269-01

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 37160 Rev 1402