本文件规定了拟用于承受明显压力/温度变化和/或潜在腐蚀条件或工艺和侵蚀性化学品的工艺容器内表面的内涂层和衬里系统的表面处理、材料、应用、检查和测试的最低技术要求，用于石油和天然气行业。 本文件涵盖工艺容器的新建和维护工程，以及缺陷和劣化涂层和衬里系统的维修。 本文件还规定了涂层和衬里样品的最低要求及其批准标准。

This document specifies the minimum technical requirements for surface preparation, materials, application, inspection and testing of internal coating and lining systems that are intended to be applied on internal surfaces of process vessels that are subject to marked pressure/temperature changes and/or potentially corrosive conditions or processes and aggressive chemicals, used in the oil and gas industry. This document covers both new construction and maintenance works of process vessels as well as the repair of defective and deteriorated coating and lining systems. This document also provides the minimum requirements for the coated and lined samples and the criteria for their approval.