This standard was last reviewed and confirmed in 2018.
Therefore this version remains current.
Abstract
PreviewApplicable to products having sulphate contents equal to or more than 0.0005 % (m/m). Analysis by reduction of the sulphate to sulphide by a mixture of hydriodic acid and hypophosphorus acid. Absorption of the hydrogen sulphide evolved in a mixture of acetone and sodium hydroxide solution. Titration with a standard volumetric solution of mercury(II) acetate in the presence of dithizone as indicator. Has also been approved by the IUPAC.
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Status: PublishedPublication date: 1974-11
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Edition: 1Number of pages: 3
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- ICS :
- 71.060.30 Acids
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| Format | Language | |
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| std 1 40 | ||
| std 2 40 | Paper |
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Life cycle
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Previously
WithdrawnISO/R 847:1968
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