标准摘要
[中文适用范围]： 本文件规定了根据 ISO 2531、ISO 7186 和 ISO 16631 适用于工厂应用的球墨铸铁管聚氨酯内衬的要求和测试方法。 它涵盖了用于输送原水、饮用水和污水的内衬。 温度高达 50 °C。 [外文原描述]： This document specifies the requirements and test methods applicable to factory applied internal polyurethane lining for ductile iron pipes according to ISO 2531 , ISO 7186 and ISO 16631 . It covers internal linings for use in the conveyance of raw water, potable water and sewage water for operating temperature up to 50 °C.
英文名称Internal protection by polymeric lining for ductile iron pipes — Requirements and test methods — Part 1: Polyurethane lining