ISO 5315-1984 标准详情
- 标准号:ISO 5315-1984
- 中文标题:肥料 氮总含量的测定 蒸馏后滴定法
- 英文标题:Fertilizers; Determination of total nitrogen content; Titrimetric method after distillation
- 标准类别:国际标准化组织标准ISO
- 发布日期:1984-06
The method consists in reducing of nitrate to ammonia by chromium powder in acid medium, converting of organic and urea nitrogen into ammonium sulfate by digestion with concentrated sulfuric acid in the presence of a catalyst, distilling of the ammon
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