本标准描述了确定最低要求的指南，以确保正确选择材料、应用和检查管道液体环氧涂层，用于修复和修复之前涂层的管道，以及在管道外表面上涂层现场接头。还包括两个表，列出了测试的涂层性能和资格要求。本标准由任务组（TG）247维护。

This standard describes guidelines for establishing minimum requirements to ensure proper material selection, application, and inspection of pipeline liquid-epoxy coatings used for the repair and rehabilitation of previously coated pipelines and for coating field joints on the external surfaces of pipe. Also includes two tables listing coating properties and qualification requirements for testing. This standard is maintained by Task Group (TG) 247.