It is explained the theory and methodology of RBI, and it is analyzed the main features of API570, API RP 580 and API pub 581 as well as the status of the three documents in pipeline RBI codes system.

• 文章阐述了管道RBI的理论、方法,分析了API570、APIRP580、APIpub581三个API文件的主要特点及其在管道RBI规范体系中的地位。