This standard was last reviewed and confirmed in 2022.
Therefore this version remains current.
Abstract
PreviewApplicable to products having SO4 contents of more than 0.05 % (m/m). Covers the dissolution of the test portion in hydrochloric acid and evaporation in hydrochloric acid solution for drying. Dissolution of the residue in a hydrochloric acid solution. Measurement of the turbidity obtained by precipitation, under specified conditions, of barium sulphate using a spectrophotometer at a wavelength of about 470 nm or a photoelectric absorptiometer.
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Status: PublishedPublication date: 1976-07
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Edition: 1Number of pages: 3
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- ICS :
- 71.100.10 Materials for aluminium production
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en
| Format | Language | |
|---|---|---|
| std 1 40 | ||
| std 2 40 | Paper |
- CHF40
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