ASTM D 3985 - 05 (Reapproved 2010) Standard Test Method for Oxygen Gas Transmission Rate Through Plastic Film and Sheeting Using a Coulometric Sensor

American Society for Testing and Materials (ASTM). Current edition approved Oct. 1, 2010. Published November 2010. Originally approved in 1981. Last previous edition approved in 2005 as D3985 – 05. 7 p. This test method covers a procedure for determination of the steady-state rate of transmission of oxygen gas through plastics in the form of film, sheeting, laminates, coextrusions, or plastic-coated papers or fabrics. It provides for the determination of (1) oxygen gas transmission rate (OTR), (2) the permeance of the film to oxygen gas (PO2), and (3) oxygen permeability coefficient (P’O2) in the case of homogeneous materials.