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UDC 661.866
:543. 062
GB 8762.4 88
Yttrium oxide of phosphor grade- Determination
of iron oxide,lead oxide,nickel oxide and copper
oxide contents- Emission spectrographic method
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GBT 8762.4-1988 荧光级氧化钇中氧化铁、氧化铅、氧化镍和氧化铜量测定 发射光谱法.pdf