ISO 3423-1975 标准详情
- 标准号:ISO 3423-1975
- 中文标题:工业用硫酸和发烟硫酸 二氧化硫含量的测定 碘量法
- 英文标题:Sulphuric acid and oleums for industrial use; Determination of sulphur dioxide content; Iodometric method
- 标准类别:国际标准化组织标准ISO
- 发布日期:1975-11
Applicable of products the SO2 content of which is equal to or more than 2 mg/kg. Based on the displacement of the sulphur dioxide present in the test portion by a current of pure nitrogen and absorption in a known volume of iodine solution. Titratio
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