标准摘要
[中文适用范围]： 本文件规定了硫化橡胶或热塑性橡胶在不同分压下的气体透过性的三种测定方法。这三种方法分别是：——一种压力传感器法（使用真空）：用于确定气体传输速率、气体渗透系数、气体扩散系数和气体溶解度系数；——一种简化的传感器法（使用施加的压力）：仅用于确定气体渗透系数；——一种气相色谱法：用于确定气体传输速率和气体渗透系数。这些方法适用于 Shore 硬度不低于 35 IRHD（国际橡胶硬度度单位）的硫化橡胶和热塑性橡胶，以及单一气体或气体混合物。 [外文原描述]： This document specifies three methods for the determination of the permeability to gases of vulcanized or thermoplastic rubber under a differential partial pressure. The three methods specified are as follows: — a pressure sensor method (using vacuum): for determining the gas transmission rate, gas permeability coefficient, gas diffusion coefficient and gas solubility coefficient; — a simplified sensor method (using applied pressure): for determining the gas permeability coefficient only; — a gas-chromatographic method: for determining the gas transmission rate and gas permeability coefficient. These methods apply to vulcanized and thermoplastic rubbers of hardness not less than 35 IRHD (international rubber hardness degrees) and to both single gases and mixtures of gases.
英文名称Rubber, vulcanized or thermoplastic — Determination of permeability to gases — Part 1: Differential-pressure methods