ISO 1981-1977 标准详情
- 标准号:ISO 1981-1977
- 中文标题:工业用硝酸.亚硝酸化合物的测定.滴定法
- 英文标题:nitric acid for industrial use-determination of nitrous compounds-titrimetric method
- 标准类别:国际标准化组织标准ISO
- 发布日期:1977-11-15
Two cases are considered: content of nitrous compounds, expressed as HNO2, equal to or greater than 0, 01 % (m/m) and content of nitrous compounds, expressed as HNO2, less than 0, 01 % (m/m). The principle consists in oxidatiuon of the compounds pres
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