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ISO 5518:2007-ed.2.0

Fruits, vegetables and derived products — Determination of benzoic acid content — Spectrophotometric method

NORM herausgegeben am 18.1.2007

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Informationen über die Norm:

Bezeichnung normen: ISO 5518:2007-ed.2.0
Ausgabedatum normen: 18.1.2007
Zahl der Seiten: 5
Gewicht ca.: 15 g (0.03 Pfund)
Land: Internationale technische Norm
Kategorie: Technische Normen ISO

Die Annotation des Normtextes ISO 5518:2007-ed.2.0 :

Description / Abstract: ISO 5518:2007 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.