Gas Sample Bag Selection Guide
Gas Sample Bags are one of the types of sampling media used in air sampling, onto/into which the contaminant is collected. Other sampling media includes the sorbent in sorbent tubes and filters. Use this convenient guide to help you select a gas sample bag to meet your application.
Gas Sample Bag
Material |
Thickness mil (mm) |
Fittings |
Benefits |
Disadvantages |
|
|
|
- Dual SS
- Single PP
- Breath-gas Analysis
|
- Classic Dupont film
- Good stability for VOCs, CO, CO2, methane, SF6 and some sulphur compounds including H2S
|
|
|
|
|
|
- Effectively retains H2S for 48 hours
- Good light and moisture barrier properties
- Good stabilty for CO, CO2, methane, hydrogen, H2S, carbonyl sulphide, methyl and ethyl mercaptan and SF6
|
|
|
|
|
- Single SS
- Single PP
- Breath-gas Analysis
|
- All the benefits of Standard FlexFoil
- Low VOC background
- Good stabilty for VOCs
- Suitable for collecting low ppm to high ppb level VOCs
|
|
|
|
|
|
- Low VOC background
- Good stability for many VOCs, CO, CO2, methane and SF6
- Acceptable stability for some sulphur compounds
- Most economical option
|
- Not recommended for H2S or carbonyl sulphide
- Requires flat storage and transport for sample integrity
|
Table Notes:
SS - Stainless Steel
PP - Polypropylene
