NACE International RP0502-2002 (Chinese), Pipeline External Corrosion Direct Assessment Methodology 21110-SG

管道外壁腐蚀直接评价方法的推荐作法 Translated to Chinese by the NACE China Section. Covers the NACE external corrosion direct assessment (ECDA) process—a process of assessing and reducing the impact of external corrosion on pipeline integrity. ECDA is a continuous improvement process providing the advantages of locating areas where defects can form in the future, not just areas where defects have already formed, thereby helping to prevent future external corrosion damage. This standard covers the four components of ECDA: Pre-Assessment, Indirect Inspections, Direct Examinations, and Post Assessment. Key words: direct assessment, pipelines.