本文件以参考线的形式规定了作为时间和温度函数的预期强度的最小值，用于计算交联聚乙烯（PE-X）管和交联中密度聚乙烯（PE-MDX）管。 注1本文件适用于根据第4条生产后具有最低交联水平的管道。 注2根据ISO 17855-1:20 14[2]，中密度聚乙烯的密度范围为926 kg/m3至940 kg/m3。

This document specifies the minimum values for expected strength as a function of time and temperature in the form of reference lines, for use in calculations on crosslinked polyethylene (PE-X) pipes and crosslinked medium density polyethylene (PE-MDX) pipes. NOTE 1 This document is applicable for pipes with the minimum level of crosslinking after production in accordance with Clause 4. NOTE 2 The density range for medium density polyethylene is 926 kg/m3 to 940 kg/m3 in accordance with ISO 17855-1:2014^[2].