GB/T 16480.1-1996 金属钇及氧化钇化学分析方法　氧化镧、氧化铈、氧化镨、氧化钕、氧化钐、氧化铕、氧化钆、氧化铽、氧化镝、氧化钬、氧化铒、氧化铥、氧化镱和氧化镥量的测定

GB/T 16480.1-1996 Method for chemical analysis of yttrium and yttrium oxide—Determination of lanthanum oxide, cerium oxide, praseodymium oxide, neodymium oxide, samarium oxide, europium oxide, gadolinium oxide, terbium oxide, dysprosium oxide, holmium oxide, erbium oxi, thulium oxide, ytterbium oxide and lutecium oxide contents