本标准描述了主要用作地下水供水管线的共挤聚乙烯（PE）复合压力管，在聚乙烯内层和外层之间具有焊接铝管加强件。内层和外层通过聚合物熔胶粘合到铝管上。本标准描述了线性聚乙烯铝聚乙烯配置（以下简称PE-AL-PE管）和交联聚乙烯铝交联聚乙烯配置（以下简称PEX）- 铝PEX管。

This standard describes coextruded polyethylene (PE) composite pressure pipes with a welded aluminum tube reinforcement between the inner and outer layers of polyethylene, primarily for use as underground water service lines. The inner and outer layers are bonded to the aluminum tube by a polymeric melt adhesive. This standard describes both linear polyethylene-aluminum-polyethylene configurations, hereafter referred to as PE-AL-PE pipes, and crosslinked polyethylene-aluminum-crosslinked polyethylene configurations, hereafter referred to as PEX-AL-PEX pipes.