Home / Standards / GB/T 45823-2025 GB/T 45823-2025 Active High purity sand applied inside quartz crucible for photovoltaic monocrystalline silicon growth 光伏单晶硅生长用石英坩埚高纯内层砂 Standard Type GBT ICS 81.040.10 CCS Q35 Status 现行 Issue Date 2025-05-30 Implementation 2025-12-01 Responsible Dept 中国建筑材料联合会 Drafting Unit N/A