Fruits, vegetables and derived products — Qualitative method for the detection of sulphur dioxide
NORM herausgegeben am 1.8.1981
Bezeichnung normen: ISO 5521:1981
Ausgabedatum normen: 1.8.1981
Zahl der Seiten: 2
Gewicht ca.: 6 g (0.01 Pfund)
Land: Internationale technische Norm
Kategorie: Technische Normen ISO
Description / Abstract: The method is applicable to products having contents of 2 mg or more per kilogram. It consists in acidification of a test portion and decolourizing by the liberated gas of a starch indicator paper previously coloured blue by a trace of iodine vapour.