GB/T 18115.10-2006
ActiveChemical analysis methods of rare earth impurities in rare earth metals and their oxides Holmium-Determination of lanthanum, cerium, praseodymium, neodymium, samarium, europium, gadolinium, terbium, dysprosium, 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 钬中镧、铈、镨、钕、钐、铕、钆、铽、镝、铒、铥、镱、镥和钇量的测定
Application Summary AI generated
This standard specifies chemical analysis methods for determining the concentration of 14 specific rare earth impurities (including lanthanum, cerium, praseodymium, neodymium, samarium, europium, gadolinium, terbium, dysprosium, erbium, thulium, ytterbium, lutetium, and yttrium) in holmium metal and holmium oxide. It is applied in the metallurgical industry for quality control and purity assessment of holmium-based materials, particularly in the production of rare earth metals and oxides used in advanced optics, magnets, and electronics. The standard ensures consistent impurity profiling during manufacturing, procurement, and testing of high-purity holmium products.
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GB/T 12690.12-2003
Chemical analysis methods for non-rare earth impurities of rare earth metals and their oxides--Determination of thorium content--Arsenazo III spectrophotometric method and inductively coupled plasma mass spectrum method
GB/T 12690.5-2003
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