Home / Standards / GB/T 40238-2021 GB/T 40238-2021 Active Reaction to fire tests for building materials and products—General rules for selection of substrates, conditioning and mounting of specimen 建筑材料及制品燃烧试验 基材选取、试样状态调节和安装要求 Standard Type GBT ICS 13.220.40 CCS C80/90 Status 现行 Issue Date 2021-05-21 Implementation 2021-12-01 Responsible Dept 国家消防救援局 Drafting Unit N/A