Home / Standards / GB/T 47077-2026 GB/T 47077-2026 Upcoming Test method for available alkali content of mineral admixtures 矿物掺合料有效碱含量试验方法 Standard Type GBT ICS 91.100.30 CCS Q13 Status 即将实施 Issue Date 2026-01-28 Implementation 2026-08-01 Responsible Dept 中国建筑材料联合会 Drafting Unit N/A