标准摘要
[中文适用范围]： 规定了用于接头的承插口和插口的设计公式和衍生尺寸以及公差，以及用于建筑物内排放系统的 PP 管道的整体承插口，其中此类接头旨在适应膨胀和收缩。 [外文原描述]： Specifies the design formulae and the derived dimensions, together with tolerances, of sockets and spigots for joints and for integral sockets of PP pipes intended for use in discharge systems inside buildings where such joints are intended to accommodate expansion and contraction.
英文名称Plastics pipes and fittings — Dimensions of sockets and spigots for discharge systems inside buildings — Part 3: Polypropylene (PP)