ISO 3697-1976 标准详情
- 标准号:ISO 3697-1976
- 中文标题:工业用氢氧化钠;钙和镁含量测定;火焰原子吸收法
- 英文标题:sodium hydroxide for industrial use; determination of calcium and magnesium contents; flame atomic absorption method
- 标准类别:国际标准化组织标准ISO
- 发布日期:1976-11-15
Applicable to products having contents of more than 2.5 mg Ca/kg and 0.5 mg Mg/kg if an acetylene-air flame is used or 0.6 mg Ca/kg and 1.0 mg Mg/kg if an acetylen-dinitrogen monoxide flame is used. The principle consists in the acidification of a te
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