ISO 4176-1981 标准详情
- 标准号:ISO 4176-1981
- 中文标题:肥料-硝态氮含量测定-硝酸试剂重量分析法
- 英文标题:fertilizers-determination of nitrate nitrogen content-nitron gravimetric method
- 标准类别:国际标准化组织标准ISO
- 发布日期:1981-04-01
The method is suitable as a reference method and is applicable to all fertilizers. It consists in precipitating of nitrate ions in acid solution as a complex with nitron reagent, filtrating of the precipitate, drying and weighing.
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