Home / Standards / GB/T 9966.13-2021 GB/T 9966.13-2021 Active Test methods for natural stone—Part 13: Determination of water absorption coefficient by capillarity 天然石材试验方法 第13部分:毛细吸水系数的测定 Standard Type GBT ICS 91.100.15 CCS Q21 Status 现行 Issue Date 2021-05-21 Implementation 2021-12-01 Responsible Dept 中国建筑材料联合会 Drafting Unit N/A