Home / Standards / GB/T 46630-2025 GB/T 46630-2025 Active Safety valves for cryogenic vessels 低温容器用安全阀 Standard Type GBT ICS 23.020.30 CCS J 74 Status 现行 Issue Date 2025-10-31 Implementation 2026-05-01 Responsible Dept 国家标准委 Drafting Unit N/A