标准摘要
[中文适用范围]: 本国际标准规定了测定多层管材长期静水压强度的两种替代方法:适用于多层 P 管材(所有聚合物层)的计算方法和适用于多层 P 管材和多层 M 管材(聚合物层和金属层)的试验方法。 )。 本国际标准不适用于由一层聚合物应力设计层或具有非应力设计外聚合物层的管道。 第 2 条中引用的国际标准涵盖了这些类型的多层管道。 [外文原描述]: ISO 17456:2006 specifies two alternative methods for determining the long-term hydrostatic strength of multilayer pipes: a calculation method applicable to multilayer P pipes (all polymer layers) and a test method applicable to both multilayer P and multilayer M pipes (polymer and metal layers). It is not applicable to pipes consisting of one polymeric stress-designed layer or having an outside polymeric layer that is not stress-designed.
英文名称Plastics piping systems — Multilayer pipes — Determination of long-term strength