标准编号：ISO 7326:2016
中文名称：橡胶和塑料软管 静态条件下抗臭氧性能的评定
英文名称：Rubber and plastics hoses — Assessment of ozone resistance under static conditions
发布日期：2016-10
标准范围
This document specifies five methods for determining the ozone resistance of the outer covers of hoses:— method 1, for bore sizes up to and including 25 mm, carried out on the hose itself;— method 2, for bore sizes greater than 25 mm, carried out on a test piece from the hose wall;— method 3, for bore sizes greater than 25 mm, carried out on a test piece from the cover;— method 4, for all bore sizes, carried out on the hose itself;— method 5, for all bore sizes, carried out on hoses that are expandable, for example textile-reinforced hoses.NOTE For hoses with built-in fittings from which it is not possible to take test pieces, the ozone resistance can be assessed on slabs in accordance with ISO 1431-1, using test sheets of the appropriate polymeric compound vulcanized to the same degree.
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