Home / Standards / GB/T 45335-2025 GB/T 45335-2025 Active Determination of the content of attapulgite phase—X-ray diffraction standard curve method 凹凸棒石相含量的测定 X射线衍射-标准曲线法 Standard Type GBT ICS 73.080 CCS Q69 Status 现行 Issue Date 2025-02-28 Implementation 2025-09-01 Responsible Dept 中国建筑材料联合会 Drafting Unit N/A