Home / Standards / GB/T 45002-2024 GB/T 45002-2024 Active Method for determining water retention of cement mortar 水泥胶砂保水率测定方法 Standard Type GBT ICS 91.100.10 CCS Q11 Status 现行 Issue Date 2024-11-28 Implementation 2025-06-01 Responsible Dept 中国建筑材料联合会 Drafting Unit N/A