ISO 1916-1972 标准详情
- 标准号:ISO 1916-1972
- 中文标题:工业用四硼酸二钠.氧化钠和氧化硼含量及其烧失量测定
- 英文标题:disodium tetraborates for industrial use-determination of sodium oxide and boric oxide contents and loss on ignition
- 标准类别:国际标准化组织标准ISO
- 发布日期:1972-05-15
The principle of the method consists in determination of the sodium oxide content by addition of an excess of a solution of hydrochloric acid and back titration with a standard volumetric solution of sodium hydroxide in presence of methyl red/bromocr
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