ISO 5442-1980 标准详情
- 标准号:ISO 5442-1980
- 中文标题:工业用六氟硅酸钠.硫化物含量的测定.还原后碘量法
- 英文标题:sodium hexafluorosilicate for industrial use; determination of sulphur compounds content; iodometric method after reduction
- 标准类别:国际标准化组织标准ISO
- 发布日期:1980-10-15
Applicable to products having contents, expressed as sulphate2- , between 0.03 % (m/m) and 0.5 % (m/m). Reduction of the compounds to hydrogen sulphide by heating with a mixture of hydriodic and hypophosphorus acids in the presence of hydrochloric ac
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