Home / Standards / GB/T 37321-2019 GB/T 37321-2019 Active Chemical analysis methods of different sulfur forms in gypsum and gypsum products 石膏及石膏制品中形态硫化学分析方法 Standard Type GBT ICS 91.100.10 CCS Q27 Status 现行 Issue Date 2019-03-25 Implementation 2020-02-01 Responsible Dept 中国建筑材料联合会 Drafting Unit N/A