ISO 3328-1975 标准详情
- 标准号:ISO 3328-1975
- 中文标题:工业用硝酸;硫酸盐含量测定;还原和滴定测量法
- 英文标题:nitric acid for industrial use; determination of sulphate content; method by reduction and titrimetry
- 标准类别:国际标准化组织标准ISO
- 发布日期:1975-07-15
Applicable to products the SO4 content of which is equal to or more than 0.0001 % (m/m). Heating of a test portion to dryness in the presence of sodium carbonate. Reduction of the sulphureous residue to sulphides by a mixture of hydriodic acid and hy
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