标准摘要
[中文适用范围]: 本文件规定了两种测定柔性泡沫聚合物材料空气流量值的方法: — 方法 A,适用于常规类型的柔性泡沫聚合物材料; — 方法 B,适用于所有类型的柔性泡沫聚合物材料,特别是透气性低的材料。对于方法 B,本文件规定了两种方法: — 方法 B1:手动测量; — 方法 B2:自动测量。 注 1 空气流量值可用于指示配方和生产变量对泡沫结构的影响。 注 2 在本文件中,“常规类型的柔性泡沫聚合物材料”一词是指不适用于密封用途的类型。 [外文原描述]: This document specifies two methods for determining the air flow value of flexible cellular polymeric materials: — method A, for conventional types of flexible cellular polymeric material; — method B, for all types of flexible cellular polymeric material, but especially for materials with a low permeability to air. For method B, two methods are specified in this document: — method B1: with manual measurement; — method B2: with automatic measurement. NOTE 1 Air flow values can be used to give an indication of the effects of formulation and production variables on the cellular structure. NOTE 2 In this document, the expression “conventional type of flexible cellular polymeric material” means types which are unsuitable for sealing purposes.
英文名称Polymeric materials, cellular, flexible — Determination of air flow value at constant pressure-drop