This standard specifies the determination method of samarium oxide, europium oxide, terbium oxide, dysprosium oxide and yttrium oxide content in gadolinium oxide. This standard applies to the simultaneous determination of samarium oxide, europium oxide, terbium oxide, dysprosium oxide and yttrium oxide in gadolinium oxide (99.50% to 99.99%). The measurement range is shown in Table 1.
GB/T 12690.10-1990 history
1990GB/T 12690.10-1990 Gadolinium oxide--Determination of samarium oxide, europium oxide, terbium oxide, dysprosium oxide and yttrium oxide contents--Emission spectrographic method