ISO 4322:1977 PDF
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Non-ionic surface active agents — Determination of sulphated ash — Gravimetric method
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.
| Edition | 1977 |
|---|---|
| Published Date | 1977 |
| Published By | International Standardization Organisation |
| Page Count | 2 |
