ISO 622-1981 标准详情
- 标准号:ISO 622-1981
- 中文标题:固体矿物燃料 磷含量的测定 还原磷钼酸盐光度法
- 英文标题:Solid mineral fuels; Determination of phorphorus content; Reduced molybdophosphate photometric method
- 标准类别:国际标准化组织标准ISO
- 发布日期:1981-08
For taking the phosphorus into solution the following two methods are specified: The carbonaceous material is removed by ashing in amuffle furnace under specified conditions and the phosphorus is extracted by treatment with hydrofluoric and sulphuric
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