GB/T 12690.1-2022 Chemical analysis methods for non-rare earth impurities of rare earth metals and their oxides-Part 1：Determination of carbon and sulfur contents-High frequency-infrared absorption method

Standard Number: GB/T 12690.1-2022
Chinese:稀土金属及其氧化物中非稀土杂质化学分析方法 第1部分：碳、硫量的测定 高频-红外吸收法
English:Chemical analysis methods for non-rare earth impurities of rare earth metals and their oxides-Part 1：Determination of carbon and sulfur contents-High frequency-infrared absorption method

Effective Date:2023-07-01
Regulatory Authority:Standardization Administration of PRC (SAC)
Issuing Regulatory Authority:State Administration for Market Supervision and Administration, State Standardization Administration

Adheres to international standards:N
PDF Downloadable:Y

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