ISO R 909-1968 标准详情
- 标准号:ISO R 909-1968
- 中文标题:工业用盐酸 铁含量的测定 2,2'-联吡啶分光光度法
- 英文标题:Hydrochloric acid for industrial use; Determination of iron content; 2,2'- Bipyridyl spectrophotometric method
- 标准类别:国际标准化组织标准ISO
- 发布日期:1968-12-01
The principle consists in evaporation of the test portion, taking up by means of hydrochloric acid and reduction of iron(III) by means of hydroxylammonium chloride. Formation of an iron(II)-2.2''-bipyridyl complex in a buffered medium at a pH value
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