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| International Standard Category: Cadmium, cobalt and their alloys |
GB/T 3312-1982 Determination of thorium dioxide in thorium-tungsten alloys;Weight method
钨钍合金中二氧化钍的测定 重量法 ;
| Category No.: | 77.120.70 | Valid Status: | superseded |
| Issued Organization: | China State Bureau of Standards | Issued Date: | 1982-01-02 |
| Implemented Date: | 1983-9-1 | Abolished Date: | |
| Superseded Standard.: | YS/T 501-2006 Determination of thorium dioxide in thorium-tungsten alloys -- weight method |
Superseded Date: | 2006-10-11 |
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