规定了固定浸入式结构物外表面阴极保护的要求，包括海上平台、码头、码头、浮筒、污水处理厂、水处理厂、水闸、河流中的泵站桩、堰、系泊浮筒、打桩、基础和进水口/出水口结构。

Specifies requirements for the cathodic protection of external surfaces of fixed immersed structures, including offshore platforms, wharves, jetties, pontoons, sewage treatment plants, water treatment plants, lock gates, pump station piles in rivers, weirs, mooring buoys, piling, foundations and water inlet/outlet structures.