ISO 5520:1981

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

Publication date: 1 gush 1981

General information

Current stage: 90.93 Effective date: 26 gush 2024

Originator: ISO

Owner: ISO/TC 34/SC 3

Type: International Standard

ICS: 67.080.01

Gjuha: frëngjisht anglisht

Buying

Statusi: Publikuar

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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
ISO 5520:1981
90.93 Standard confirmed
26 gush 2024

REVISED BY

ABANDON
ISO/WD 5520

ABANDON
ISO/PWI 5520

National adoptions

SSH ISO 5520:2001

DPS

PFP - Percaktimi I alkalinitetit te hirit te pergjthshem dhe hirit te tretshem ne uje

60.60 Standard published

DPS/KT 275 më tepër