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ISO 4322:1977 (R2019)
Non-ionic surface active agents — Determination of sulphated ash — Gravimetric method
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Summary
The method consists in calcination of a test portion in the presence of sulphuric acid solution and weighing of the ash in form of sulphate.
Notes
90.60 : Clôture de l'examen
Technical characteristics
| Publisher | International Organization for Standardization (ISO) |
| Publication Date | 05/01/1977 |
| Confirmation Date | 05/25/2019 |
| Edition | 1 |
| Page Count | 2 |
| EAN | --- |
| ISBN | --- |
| Weight (in grams) | --- |
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Previous versions
01/05/1977
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