ISO 3330-1975 标准详情
- 标准号:ISO 3330-1975
- 中文标题:工业用硝酸铵;氨态氮含量测定;蒸馏后进行滴定测量法
- 英文标题:ammonium nitrate for industrial use; determination of ammoniacal nitrogen content; titrimetric method after distillation
- 标准类别:国际标准化组织标准ISO
- 发布日期:1975-07-15
Based on dissolution of a test sample in water. Distillation of the ammonia after displacement by an alkali solution. Absorption in an excess of standard volumetric sulphuric acid solution and back-titration with standard volumetric sodium hydroxide
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