Home / Standards / GB/T 9978.4-2008 GB/T 9978.4-2008 Active Fire-resistance tests－Elements of building construction－Part 4: Specific requirements for loadbearing vertical separating elements 建筑构件耐火试验方法 第4部分：承重垂直分隔构件的特殊要求 Standard Type GBT ICS 13.220.50 CCS C82 Status 现行 Issue Date 2008-06-26 Implementation 2009-03-01 Responsible Dept 国家消防救援局 Drafting Unit N/A