Home / Standards / GB/T 9966.1-2020 GB/T 9966.1-2020 Active Test methods for natural stone—Part 1:Determination of dry,wet and after freezing compressive strength 天然石材试验方法 第1部分：干燥、水饱和、冻融循环后压缩强度试验 Standard Type GBT ICS 91.100.15 CCS Q21 Status 现行 Issue Date 2020-03-06 Implementation 2021-02-01 Responsible Dept 中国建筑材料联合会 Drafting Unit N/A