Home / Standards / GB/T 42629.4-2023 GB/T 42629.4-2023 Active Code of practice for international seabed area and high seas environmental survey—Part 4: Physical features survey of marine sediments 国际海底区域和公海环境调查规程 第4部分:海洋沉积物物理特性调查 Standard Type GBT ICS 07.060 CCS A45 Status 现行 Issue Date 2023-08-06 Implementation 2024-03-01 Responsible Dept 自然资源部(海洋) Drafting Unit N/A