GB/T 18115.5-2006
稀土金屬及其氧化物中稀土雜質化學分析方法.釤中鑭、鈰、鐠、釹、銪、釓、鋱、鏑、鈥、鉺、銩、鐿、镥和釔量的測定
Chemical analysis methods of rare earth impurities in rare earth metals and their oxides Samarium.Determination of lanthanum,cerium,praseodymium,neodymium,europium,gadolinium, terbium,dysprosium,holmium,erbium,thulium, ytterbium, lutetium and yttrium cont
GBT18115.5-2006, GB18115.5-2006