Home / Standards / GB/T 40530-2021 GB/T 40530-2021 Active Ships and marine technology—Safety valve for cargo tanks of LNG carriers—Design and testing requirements 船舶和海上技术 液化天然气运输船液货舱安全阀 设计与试验要求 Standard Type GBT ICS 47.020.30 CCS U52 Status 现行 Issue Date 2021-08-20 Implementation 2022-03-01 Responsible Dept 国家标准委 Drafting Unit N/A