Home / Standards / GB/T 42800-2023 GB/T 42800-2023 Active High purity opaque quartz glass 高纯不透明石英玻璃 Standard Type GBT ICS 81.040.30 CCS Q35 Status 现行 Issue Date 2023-05-23 Implementation 2023-12-01 Responsible Dept 中国建筑材料联合会 Drafting Unit N/A