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BS ISO 5518:2007

Current
Current

The latest, up-to-date edition.

Fruits, vegetables and derived products. Determination of benzoic acid content. Spectrophotometric method
Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

28-02-2007

Publisher

British Standards Institution

Foreword
Introduction
1 Scope
2 Principle
3 Reagents
4 Apparatus
5 Sampling
6 Procedure
7 Calculation and expression of results
8 Repeatability
9 Test report

Specifies a method for determining the benzoic acid content of fruits, vegetables and derived products.

This International Standard specifies a method for determining the benzoic acid content of fruits, vegetables and derived products.

As chlorobenzoic acids are resistant to oxidation, the method cannot be applied in the presence of p-chlorobenzoic acid, as the absorption spectrum of this acid is close to that of benzoic acid. Neither can it be used in the presence of cinnamic acid, which is transformed into benzoic acid by chromic acid oxidation.

NOTE The cinnamic acid determined as benzoic acid in this method exists generally only in the form of traces in vegetables, and therefore has no effect on the result obtained, except in the case of cinnamon bark, which contains higher quantities.

Committee
W/-
DevelopmentNote
Supersedes 05/30140016 DC (02/2007)
DocumentType
Standard
Pages
12
PublisherName
British Standards Institution
Status
Current
Supersedes

Standards Relationship
ISO 5518:2007 Identical

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Hardcopy - English
PDF - English
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