GB/T 18115.12-2006
ActiveChemical analysis methods of rare earth impurities in rare earth metals and their oxides Yttrium-Determination of lanthanum, cerium, praseodymium, neodymium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium and lutetium contents
稀土金属及其氧化物中稀土杂质化学分析方法 钇中镧、铈、镨、钕、钐、铕、钆、铽、镝、钬、铒、铥、镱和镥量的测定
Application Summary AI generated
This standard specifies chemical analysis methods for determining the content of 14 rare earth impurity elements (lanthanum through lutetium) in yttrium metal and yttrium oxide. It is applied in the metallurgical industry for quality control and purity verification of yttrium-based materials, particularly in the production of phosphors, laser crystals, and high-temperature superconductors. The standard ensures accurate impurity profiling during raw material inspection and final product certification.
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