Made from 5 mil FEP fluoropolymer film, flexible, sturdy Chemware® FEP bags are heat sealed on all four sides for complete chemical resistance and leak-proof operation. They are inert to most chemicals and have low permeability which limits sample loss. Available with either a nickel-plated, brass on/off valve that accepts 1/4" (6.4mm) I.D. flexible tubing or with PTFE/silicone septum in polypropylene housing for use with a hypodermic needle.
These FEP bags are easy to use. They can be stored for an unlimited period prior to use. Applications include gas sample analysis, extracting air samples from smokestack exhaust systems, monitoring air quality or calibrating instruments in the field. Custom sizes and configurations available on request. The bags are individually packaged. All bags also available in a pack of 10, except 50L size which is available in a pack of 5.