本标准介绍了通过CP有效控制UST系统外部腐蚀的标准实践。本标准旨在作为指南，制定使用CP控制金属UST系统外部腐蚀的最低要求，包括用于容纳油、气和水的系统，以及埋置、部分埋置或与土壤接触的系统。

This standard presents standard practices for effective control of external corrosion of UST systems by CP. It is intended to serve as a guideline to establish minimum requirements for using CP to control external corrosion of metallic UST systems, including those used to contain oil, gas, and water, and that are buried, partially buried, or in contact with the soil.