China 'GB/T 40798-2021
' standard english version:
NATIONAL STANDARD OF THE PEOPLE'S REPUBLIC OF CHINA
GB/T 40798-2021
Chemical analysis method of ion-adsorption rare earth ore—Determination of total rare earth contents—Inductively coupled plasma mass spectrometry 离子型稀土原矿化学分析方法 稀土总量的测定 电感耦合等离子体质谱法
Issued Date:2021/10/11
Implemented Date:2022/5/1
Issued by:
The Standardization Administration of the People's Republic of China