ISO 5143-1977 标准详情
- 标准号:ISO 5143-1977
- 中文标题:工业用碳酸钠.硫化物含量的测定.还原和滴定法
- 英文标题:sodium carbonate for industrial use; determination of sulphur compounds content; method by reduction and titrimetry
- 标准类别:国际标准化组织标准ISO
- 发布日期:1977-11-01
Applicable to products having a S compounds content, expressed as sulphate, of equal to or more than 5 mg/kg. Bases of progressive neutralization, with evolution of carbon dioxide, by adding slowly a mixture of hydriodic acid and hypophosphoruos acid
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