本英国标准规定了机械配件的要求和相关试验方法，旨在: a） 将聚乙烯压力管与铝屏蔽层连接起来，以供应冷饮用水，安装在受污染的土地上；b） 将新的供水管道连接到现有的供水管道，以便进行维修、分支 连接或管道改造；和c）修复现有供水管道。购买本文件时可获得的所有当前修订均包含在购买本文件中。

This British Standard specifies the requirements and associated test methods for mechanical fittings intended to: a) join polyethylene pressure pipes with an aluminium barrier layer for the supply of cold potable water for installation in contaminated land;b) join new water supply pipes to existing water supply pipes for the purposes of repair, branch connections or pipeline renovation; andc) repair existing water supply pipes.All current amendments available at time of purchase are included with the purchase of this document.