标准摘要
[中文适用范围]： 本文件规定了一种测定以薄膜、板材、层压材料、共挤材料或柔性塑料涂层材料形式存在的任何塑料材料气体透过率的方法。附录中描述了目前实际应用中的具体方法示例。 [外文原描述]： This document specifies a method for the determination of the gas-transmission rate of any plastic material in the form of film, sheeting, laminate, co-extruded material or flexible plastic-coated material. Specific examples, currently in use, of the method are described in the annexes.
英文名称Plastics film and sheeting — Determination of gas-transmission rate — Part 2: Equal-pressure method