Home / Standards / GB/T 12690.14-2006 GB/T 12690.14-2006 Active Chemical analysis methods of non-rare earth impurities in rare earth metals and their oxides Determination of titanium in rare earth metals 稀土金属及其氧化物中非稀土杂质化学分析方法 钛量的测定 Standard Type GBT ICS 77.120.99 CCS H14 Status 现行 Issue Date 2006-04-13 Implementation 2006-10-01 Responsible Dept 国家发展改革委 Drafting Unit N/A