GB/T 12690.1-2002

Chemical analysis methods for non-rare earth impurities in rare earth metals and their oxides — Determination of carbon and sulfur content by high-frequency infrared absorption method

稀土金属及其氧化物中非稀土杂质化学分析方法高频-红外吸收法测定碳、硫量

Standard Type

GBT

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CCS

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