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| International Standard Category: Cadmium, cobalt and their alloys |
GB/T 8639.1-1988 Vanadium; Determination of vanadium content; Potassium permanganate-ammonium ferrous sulphate volumetric method
钒化学分析方法 高锰酸钾-硫酸亚铁铵滴定法测定钒量 ;
| Category No.: | 77.120.70 | Valid Status: | superseded |
| Issued Organization: | SAC | Issued Date: | 1988-02-08 |
| Implemented Date: | 1989-1-1 | Abolished Date: | |
| Superseded Standard.: | YS/T 540.1-2006 Vanadium -- Determination of vanadium content -- Potassium permanganate-ammonium ferrous sulphate volumetric method |
Superseded Date: | 2006-10-11 |
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