China 'GB/T 12690.20-2024 ' standard english version:

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

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GB Standard Code	GB/T 12690.20-2024
Standard Category	China National Standards
GB Standard English Title	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{译}
GB Standard Chinese Title	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
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