Home / Standards / GB/T 14635-2020 GB/T 14635-2020 Active Rare earth metals and their compounds—Determination of total rare earth content 稀土金属及其化合物化学分析方法 稀土总量的测定 Standard Type GBT ICS 77.120.99 CCS H14 Status 现行 Issue Date 2020-11-19 Implementation 2021-10-01 Responsible Dept 国家标准委 Drafting Unit N/A