ASTM F 2476:2024

1.1 This method covers a procedure for determination of the steady-state rate of transmission of carbon dioxide gas through plastics in the form of film, sheeting, laminates, coextrusions, or plastic-coated papers or fabrics. It provides for the determination of ( 1 ) carbon dioxide gas transmission rate (CO₂ TR), ( 2 ) the permeance of the film to carbon dioxide gas (PCO₂ ), and ( 3 ) carbon dioxide permeability coefficient (P'CO₂ ) in the case of homogeneous materials. This method is quantitative and has been demonstrated by the enclosed ILS to be effective for measuring materials from 56.7 cc/(m² × day) to 331 cc/(m² × day). 1.2 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.3 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

71.100.20