Home / Standards / GB 4715 GB 4715 Active Point-type smoke detectors using scattered light, transmitted light or ionization 点型感烟火灾探测器 Standard Type GB ICS 13.220.20 CCS C81 Status 现行 Issue Date 2024-04-29 Implementation 2025-05-01 Responsible Dept 国家消防救援局 Drafting Unit 国家消防救援局