SKC 249-01 User manual

Breath-gas Analysis Bags
Cat. Nos. 249-01 and 269-01
Operating Instructions
863 Valley View Road, Eighty Four, PA 15330 USA
Tel: [phone] E-mail: [email protected]
www.skcinc.com
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®PLUS or Tedlar®material. The special stainless steel
breath-gas fitting with plastic mouthpiece allows easy sample collection and
facilitates sample removal by gas-tight syringe for gas chromatography (GC)
analysis.
Guidelines for Bag Sampling
Wear gloves when handling the bag and fittings (photos are shown without gloves for clarity).
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 affect 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 affected.
7. Do not use sample bags to sample compounds with boiling points > 249.9 F
(121 C).
8. 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.

Preparing the Fitting
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 flat 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-inflate the sample bag (see below).
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.
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Incorrect Correct
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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
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.
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.
Reference
Mochalski, P., Wzorek, B., Sliwka, I., and Amann, A., Suitability of Different 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

www.skcinc.com
Form 37160 Rev 1702
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.
Ordering Information
SKC sample bags for other applications are available in Tedlar, Standard FlexFoil, and
FlexFoil PLUS material with fittings 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 [email protected].
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 [email protected].
Description Cat. No.
1-liter Breath-gas Bags, includes 5 bags
and 5 individually packaged clean mouthpieces
Tedlar
FlexFoil PLUS
249-01
269-01
Replacement Mouthpieces, pk/10 P20054