Home / Standards / GB/T 40795.2-2021 GB/T 40795.2-2021 Active Chemical analysis methods of lanthanum-cerium metals and their compounds—Part 2:Determination of rare earth content 镧铈金属及其化合物化学分析方法 第2部分:稀土量的测定 Standard Type GBT ICS 77.120.99 CCS H14 Status 现行 Issue Date 2021-10-11 Implementation 2022-05-01 Responsible Dept 国家标准委 Drafting Unit N/A