1.1本试验方法涵盖了一种快速测定薄膜或片材形式的柔性阻隔材料的水蒸气透过率的程序。本试验方法适用于厚度小于等于3 mm的薄板和薄膜，由单层或多层合成或天然聚合物和金属箔（包括涂层材料）组成。 1.2本标准无意解决与其使用相关的所有安全问题（如有）。本标准的用户有责任在使用前制定适当的安全和健康实践，并确定监管限制的适用性。

1.1 This test method covers a rapid procedure for determining the rate of water vapor transmission of flexible barrier materials in film or sheet form. This test method is applicable to sheets and films up to 3 mm in thickness, consisting of single-layer or multilayer synthetic or natural polymers and metal foils including coated materials. 1.2 This standard does not purport to address all of the safety problems, 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.