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SRPS ISO 5520:2011

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

Jan 31, 2011

General information

90.93     Aug 26, 2024

90.20    Jul 15, 2029

ISS

E034-3

International Standard

67.080.01  

English  

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Scope

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.

Life cycle

NOW

PUBLISHED
SRPS ISO 5520:2011
90.93 Standard confirmed
Aug 26, 2024

Related project

Adopted from ISO 5520:1981