ISO 9438-1993 标准详情
- 标准号:ISO 9438-1993
- 中文标题:冶金级萤石.磷总含量的测定.还原磷钼酸盐光谱法
- 英文标题:metallurgical-grade fluorspar; determination of total phosphorus content; reduced-molybdophosphate spectrometric method
- 标准类别:国际标准化组织标准ISO
- 发布日期:1993-04-01
The principle of the method specified is to decompose a test portion by alkaline fusion and subsequent dissolution of the melt in excess of nitric acid, precipitation of iron(III) phosphate with ammonia solution, dissolution of the precipitate in nit
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