These flexible, sturdy bags, made from 5 mil thick FEP fluoropolymer film, are heatsealed on all four sides for complete chemical resistance and leakproof operation. Can be used for gas sample analysis, extracting air samples from smokestack exhaust systems, monitoring air quality or calibrating instruments in the field.

• Easy to use
• Flexible and sturdy
• Completely chemical-resistant
• Wil not contaminate samples
• Leak proof, heat sealed all four sides
• Completely chemical-resistant
• Low permeability – no sample loss
• No aging – unlimited storage life
• Unique seam construction for added strength

The bags are available with either a nickel-plated, brass on/off valve that accepts ¹/₄" Int.Ø flexible tubing or with PTFE/silicone septum in polypropylene housing for use with a hypodermic needle. Because of the precision of manufacturing controls, Chemware® gas sampling bags do not require a second outboard seal. The single seam resists most corrosives and is suitable for use where difficult chemical conditions exist.