DIN EN ISO 7326-2009 橡胶管和塑料管.静态条件下抗臭氧能力的评估(ISO 7326:2006),DIN EN ISO 7326:2009-10的英文版本

标准号：DIN EN ISO 7326-2009
中文标准名称：橡胶管和塑料管.静态条件下抗臭氧能力的评估(ISO 7326:2006),DIN EN ISO 7326:2009-10的英文版本
英文标准名称：Rubber and plastics hoses - Assessment of ozone resistance under static conditions (ISO 7326:2006); English version of DIN EN ISO 7326:2009-10
标准类型：G42;G33
发布日期：1999/12/31 12:00:00
实施日期：1999/12/31 12:00:00
中国标准分类号：G42;G33
国际标准分类号：23.040.70
引用标准：ISO 1431-1-2004;ISO 23529
适用范围：This International Standard specifies five methods for determining the ozone resistance of the outer covers ofhoses: method 1, for bore sizes up to and including 25 ram, 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 may beassessed on slabs in accordance with ISO 1431-1. using test sheets of the appropriate polymeric compound vulcanized tothe same degree.