GB/T 18115.2-2006
AbolishedChemical analysis methods of rare earth impurities in rare earth metals and their oxides Cerium-Determination of lanthanum, praseodymium, neodymium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium, lutetium and yttrium contents
稀土金属及其氧化物中稀土杂质化学分析方法 铈中镧、镨、钕、钐、铕、钆、铽、镝、钬、铒、铥、镱、镥和钇量的测定
Application Summary AI generated
This standard specifies chemical analysis methods for determining the content of 14 rare earth impurities (lanthanum through lutetium and yttrium) in cerium metal and cerium oxide. It is applied in the metallurgical industry for quality control and purity assessment of cerium-based materials used in catalysts, polishing powders, and specialty alloys. The standard ensures accurate impurity quantification to meet technical specifications for high-purity rare earth products.
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