This standard has been revised by ISO 5518:2007
Abstract
The method consists in homogenizing the product, followed by dilution and acidification of a test portion, extraction of the acid by diethyl ether, then alkaline re-extraction of this acid and purifying by oxidation using acidified potassium dichromate, determination of the acid with a suitable spectrophotometer. The method cannot be applied in the presence of p-chlorobenzoic acid and cinnamic acid, respectively.
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Status: WithdrawnPublication date: 1978-05
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Edition: 1Number of pages: 3
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- ICS :
- 67.080.01 Fruits, vegetables and derived products in general
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