ASTM International Standard Test Method for Water Vapor Transmission of Flexible Heat-Sealed Packages for Dry Products ASTM D3079-94(1999)

1.1 This test method covers the determination of the amount of water vapor transmission for flexible heat-sealed packages under specified conditions of exposure. Note-Adequate heat-seal efficiency should be determined prior to this test method. 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 and health practices and determine the applicability of regulatory limitations prior to use.