规定了用于输送污水和工业废物的重力操作用陶土管道和配件及柔性接头（套筒和套筒类型）的标称尺寸范围（DN 100至DN 1000）、抗压强度等级（3和4）、尺寸和性能要求。附录列出了管道、通用配件和承插式柔性接头的试验程序、尺寸和公差、采购指南以及确定是否符合本标准的方法。

Specifies range of nominal sizes (DN 100 to DN 1000), crushing strength classes (3 and 4), dimensional and performance requirements for vitrified clay pipes and fittings and flexible joints (socket and sleeve types), for operation under gravity, intended for the conveyance of sewage and industrial waste. Appendices set out test procedures, dimensions and tolerances for pipes, common fittings and socket type flexible joints, purchasing guidelines and methods for determination of compliance with this Standard.