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Gas Sample Bags

SKC produced its first sample bag in the late 1970s. The bag was made of Tedlar® film and soon became the classic sample bag for VOCs. Over the last 30 years, SKC Tedlar bags have been the number one choice of professionals for grab air sampling. However, SKC has also introduced newer high-performance materials, which provide new standards of performance for storage stability and background in bag sampling applications.

SKC manufactures its sample bags out of clean top-grade films including, SamplePro FlexFilm (SKC proprietary brand), FlexFoil and FlexFoil PLUS. Seams are strong, evenly sealed, and leak tested.


SKC sample bag fittings are not "off-the-shelf" industrial fittings, but are designed specifically for air sampling. The fittings, offered in a choice of materials, feature an efficient design that combines the hose/valve and septum fitting into one lightweight fitting. Use only PTFE tubing for bag sampling to prevent sample loss through adsorption to the tubing's inner surface. The fittings are 3/16 inch OD and suitable PTFE tubing is 231-9-23.

Possible applications for gas sample bags include:

  • Indoor air monitoring
  • Biogas/landfill monitoring
  • Soil vapour monitoring
  • Stack emissions
  • Worker or process exposure
  • Material testing

See our Gas Sample Bag Selection Guide for more advice.

Tedlar Sample Bags

Tedlar Gas Sample BagDuPont Tedlar film for sample integrity and valid data. It resists permeation both into and out of the bag, and is the classic bag for VOCs, being referenced in many EPA methods.

SamplePro FlexFilm Sample Bags

SamplePro FlexFilm Gas Sample BagGood stability for a wide variety of VOCs and CO, CO2, methane and SF6.

Standard FlexFoil Sample Bags

Standard FlexFoil Gas Sample BagThe only bag that effectively holds hydrogen sulphide (H2S) for 48 hours. Good stability for low molecular weight compounds such as CO, CO2, methane, hydrogen and SF6. Light- and moisture-proof.

FlexFoil PLUS Sample Bags

FlexFoil Plus Gas Sample BagAll the benefits of Standard FlexFoil plus detection and good storage stability for low ppm to high ppb VOCs.

Breath-Gas Analysis Bags

Breath-Gas Analysis Gas Sample BagBags with specially designed fitting for collecting samples of human breath.

Sample Bag Accessories

Vac-U-Chamber for quickly taking gas samplesVac-U-Chamber for quick bag samples.

Custom Sample Bags

Form for requesting Custom Sample BagsSKC offers the largest selection of bag materials and sizes. Why not request a no-obligation quotation for a custom bag?