Plastics piping systems — Multilayer pipes — Determination of long-term strength
塑料管道系统——多层管道——长期强度的测定
发布日期:
2006-10-03
ISO 17456:2006规定了确定多层管道长期静水压强度的两种替代方法:适用于多层P管道(所有聚合物层)的计算方法和适用于多层P和多层M管道(聚合物和金属层)的试验方法。
它不适用于由一个聚合物应力设计层组成的管道,或具有一个非应力设计的外部聚合物层的管道。
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.