Abstract
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).
General information
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Status: WithdrawnPublication date: 1978-09Stage: Withdrawal of International Standard [95.99]
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Edition: 1Number of pages: 6
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Technical Committee :ISO/TC 34/SC 3ICS :67.080.01
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Life cycle
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Now
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Revised by
PublishedISO 5519:2008
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