GB/T 12690.20-2024
China national
standard english version:
GB
中华人民共和国国家标准
NATIONAL
STANDARD OF THE PEOPLE'S REPUBLIC OF CHINA
GB/T 12690.20-2024
Chemical analysis methods for non-rare earth impurities in rare earth metals and their oxides-Part 20: Determination of trace fluorine and chlorine in rare earth oxides-Ion chromatography 稀土金属及其氧化物中非稀土杂质化学分析方法-第20部分:稀土氧化物中微量氟、氯的测定-离子色谱法
Issued Date:2024/11/28
Implemented Date:2025/6/1
Issued by:
The Standardization Administration of the People's Republic of China