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ISO 5519:1978

Fruits, vegetables and derived products -- Determination of sorbic acid content

General information
Withdrawn from 18.02.2008
Directives or regulations
None

Standard history

Status
Date
Type
Name
18.02.2008
Main
The method consists in homogenizing the product, followed by quantitative entraining, by steam, of the acid present in a test portion, determination of the acid in the destillate obtained, either by spectrophotometry in the ultra-violet range (technique A) or by measuring by photocolorimetry or by spectrophotometry the pink colour obtained after oxidation by chromic acid and then treatment with thiobarbituric acid (technique B).
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Standard monitoring