本标准描述了在正常施工条件下，安装在地下或水下的钢制输水管道的供水行业中使用的车间和现场应用液体环氧涂层和衬里的材料和应用。涂层和衬里系统可由以下三种类型中的任何一种组成:两组分化学固化环氧底漆和一层或多层不同的两组分化学固化环氧面漆；同一双组分化学固化环氧树脂的两层或两层以上涂层，在这种情况下，第一层应视为prine涂层；一层由两部分组成的化学固化环氧树脂。本版标准包括许多更新和增补，包括一个新名称，并对各个部分进行了重命名、重新排列和修订。

This standard describes the material and application for shop- and field-applied, liquid-epoxy coatings and linings used in the water-supply industry for steel water pipelines installed underground or underwater, under normal construction conditions.The coating and lining systems may consist of any of the following three types:A two-part chemically cured epoxy primer and one or more coats of a different two-part chemically cured epoxy top-coat;Two or more coats of the same two-part chemically cured epoxy, in which case the first coat shall be considered the prine coat; orA single coat of a two-part chemically cured epoxy.This edition of the standard includes numerous updates and additions, including a new name, and various sections were renamed, rearranged, and revised.