橡胶和塑料软管和软管组件. 耐真空性能测定

[中文适用范围]： 本文件规定了三种确定塑料或橡胶制造的软管和软管组件的耐真空性的方法。 每种方法适用的软管尺寸如下： ——方法 A，标称尺寸不超过 80 的软管； ——方法B，适用于公称尺寸大于80的软管； ——方法 C 适用于所有尺寸的软管。 如果产品标准中没有另外规定，方法C可作为方法A和B的替代方法。 方法A和B也可用于检查一段硬质衬里与加强件的粘合力（分层）。 墙壁软管或软管组件。 [外文原描述]： This document specifies three methods for determining the resistance to vacuum of hoses and hose assemblies manufactured from plastic or rubber. Applicable dimensions of hoses for each method are as follows: — method A for hoses of nominal size up to and including 80; — method B for hoses of nominal size greater than 80; — method C for hoses of all dimensions. If not otherwise specified in the product standard, method C can be used as an alternative to methods A and B. Methods A and B can also be used to check the adhesion of the lining to the reinforcement (delamination) in a length of hard-wall hose or hose assembly.