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ISO 5520:1981 (R2024)
Fruits, vegetables and derived products — Determination of alkalinity of total ash and of water-soluble ash
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Summary
After incineration of the product at 525 +/- 25 degrees centigrade the method consists in a) in the case of total ash: addition of an excess of standard volumetric sulphuric acid solution and back titration with standard volumetric sodium hydroxide solution, b) in the case of water-soluble ash: extraction of the ash with hot water and neutralization of the aqueous extract with standard volumetric sulphuric acid solution.
Notes
90.93 : Norme internationale confirmée
Technical characteristics
| Publisher | International Organization for Standardization (ISO) |
| Publication Date | 08/01/1981 |
| Confirmation Date | 08/26/2024 |
| Edition | 1 |
| Page Count | 3 |
| EAN | --- |
| ISBN | --- |
| Weight (in grams) | --- |
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01/08/1981
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