Home / Standards / GB/T 39804-2021 GB/T 39804-2021 Active Method for determination of leachable harmful substances in wall materials 墙体材料中可浸出有害物质的测定方法 Standard Type GBT ICS 91.100.01 CCS Q04 Status 现行 Issue Date 2021-03-09 Implementation 2021-10-01 Responsible Dept 中国建筑材料联合会 Drafting Unit N/A