本文件规定了未增塑聚氯乙烯的定义和要求 （PVC-U）、聚丙烯（PP）和聚乙烯（PE）人孔和检查室 适用于最大深度为6m的无压地下排水和污水系统 从地面到人孔或检查室的内底。 本文件涵盖检修孔和检查室，底座带有流道，以及 它们与管道系统的接头。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 document specifies the definitions and requirements for unplasticized poly(vinyl chloride) (PVC-U), polypropylene (PP) and polyethylene (PE) manholes and inspection chambers intended for non-pressure underground drainage and sewerage systems up to a maximum depth of 6 m from ground level to the invert of the manhole or inspection chamber. This document covers manholes and inspection chambers, with bases having a flow channel, and their joints to the piping system.All current amendments available at time of purchase are included with the purchase of this document.