GB/T 8762.7-1988
荧光级氧化铕中氧化铈、氧化镨、氧化钐、氧化钆和氧化镝量测定 化学光谱和直接光谱法
Europium oxide of phosphor grade--Determination of cerium oxide, praseodymium oxide, samarium oxide, gadolinium oxide and dysprosium oxide contents--Spectrochemical method and direct spectrographic method
GBT8762.7-1988, GB8762.7-1988