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
  • 2
    (0.05)
  • Dual SS
  • Single PP
  • Breath-gas Analysis
  • Classic Dupont film
  • Good stability for VOCs, CO, CO2, methane, SF6 and some sulphur compounds including H2S
 
  • 5
    (0.13)
  • Single SS
  • Single PP
  • 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
 
  • 5
    (0.13)
  • 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
 
  • 3
    (0.07)
  • Dual SS
  • Single PP
  • 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

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