本文件规定了ISO？中规定的用于水应用的球墨铸铁（DI）管道的环境生命周期评估（E-LCA）的评估方法2531和ISO16631.本评估方法适用于球墨铸铁管产品，基于ISO14040及其在ISO中的应用指南14044

This document specifies the evaluation method of the environmental life cycle assessment (E-LCA) of ductile iron (DI) pipes used for water applications as specified in ISO？2531 and ISO？16631. This evaluation method, applicable to ductile iron pipe products, is based on concepts and methods developed in ISO？14040 and its application guidelines in ISO？14044.