Home / Standards / GB/T 20702 GB/T 20702 Upcoming Test method for extinguishing performance of gaseous extinguishing agent 气体灭火剂灭火性能测试方法 Standard Type GBT ICS 13.220.10 CCS C 83 Status 即将实施 Issue Date 2026-03-31 Implementation 2026-10-01 Responsible Dept 国家消防救援局 Drafting Unit 国家消防救援局