GB/T 18115.10-2006
稀土金屬及其氧化物中稀土雜質化學分析方法.鈥中鑭、鈰、鐠、釹、釤、銪、釓、鋱、鏑、鉺、銩、鐿、镥和釔量的測定
Chemical 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 cont