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ASTM D1251 1994 Edition, May 15, 1994
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Standard Test Method for Water Vapor Permeability of Packages by Cycle Method
Additional Comments: W/D NO S/S
Page Count:2
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1. Scope

1.1 This test method covers the determination of the water vapor permeability of finished packages subjected to extremes of temperature and relative humidity when closed and sealed in the conventional manner. It is intended for "shelf-size packages" that are shipped in outside containers.

1.2 This test method may be applied to the package as packed, after one or more performance tests such as drop (Test Method D 5276), drum (Test Method D 782), vibration (Test Method D 999), after a series of tests simulating the shipping environment (Practice D 4169), or after shipping tests have been completed, as required.

1.3 Packages with body walls having the property of absorbing water are not suitable for testing under this test method.

1.4 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.

1.5 The values stated in SI units are to be regarded as the standard. The values in parentheses are for information only.