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| Standard Insuued on: 1988-02 |
GB/T 8762.5-1988 Yttrium oxide of phosphor grade--Determination of trace rare earth oxide contents--Spectrochemical method and direct spectrographic method
荧光级氧化钇中微量稀土氧化物测定 化学光谱和直接光谱法
| Category No.: | GB | Valid Status: | superseded |
| Issued Organization: | National Bureau of Standards | Issued Date: | 1988-02-25 |
| Implemented Date: | 1989-2-1 | Abolished Date: | |
| Superseded Standard.: | GB/T 18115.12-2006 Chemical analysis methods of rare earth impurities in rare earth metals and their oxides Yttrium - Determination of lanthanum, cerium, praseodymium, neodymium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium and lu |
Superseded Date: | 2006-10-1 |
GB/T 8694-1988
GB 8782-1988
GB 8829-1988
GB/T 8844-1988
GB/T 5687.5-1988
GB/T 8873-2008
GB/T 8874-2008
GB/T 8875-2008
GB/T 8871-2001
FZ/T 01094-1999
FZ/T 01093-1999
FZ/T 20021-1999
FZ/T 01092-1999
FZ/T 20022-1999
FZ/T 01091-1999
GB/T 8919-1996
GB/T 8918-1996
GB/T 352-1988
YY 91076-1999
YY 91079-1999
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