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ISO 5520:1981

Current Revision

Fruits, vegetables and derived products -- Determination of alkalinity of total ash and of water-soluble ash

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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.


SDO ISO: International Organization for Standardization
Document Number ISO 5520
Publication Date Not Available
Language en - English
Page Count
Revision Level
Supercedes
Committee ISO TC 34/SC 3
Publish Date Document Id Type View
Not Available ISO 5520:1981 Revision