本标准中介绍的SCCDA标准实践解决了以下情况:管道公司根据其历史、运营和风险评估过程，将其管道的一部分确定为SCC相关领域，并决定直接评估是完整性评估的适当方法。本标准通过选择潜在管段、选择管段内的挖掘地点、检查管道、挖掘期间收集和分析数据、制定缓解计划、确定重新评估间隔以及评估SCCDA过程的有效性，为SCC管理提供了指导。 本标准由273工作组维护。

The standard practice for SCCDA presented in this standard addresses the situation in which a pipeline company has identified a portion of its pipeline as an area of interest with respect to SCC based on its history, operations, and risk assessment process and has decided that direct assessment is an appropriate approach for integrity assessment. This standard provides guidance for managing SCC by selecting potential pipeline segments, selecting dig sites within those segments, inspecting the pipe, collecting and analyzing data during the dig, establishing a mitigation program, defining the reevaluation interval, and evaluating the effectiveness of the SCCDA process. This standard is maintained by Task Group 273.