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download between 0-24 hoursReleased: 1977
ISO 4322:1977
ISO 4322:1977-Non-ionic surface active agents — Determination of sulphated ash — Gravimetric method
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| Standard´s number: | ISO 4322:1977 |
| Pages: | 2 |
| Edition: | 1 |
| Released: | 1977 |
DESCRIPTION
ISO 4322:1977
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.