Fruits, vegetables and derived products — Qualitative method for the detection of sulphur dioxide
NORMA vydána dne 1.8.1981
Designation standards: ISO 5521:1981
Publication date standards: 1.8.1981
The number of pages: 2
Approximate weight : 6 g (0.01 lbs)
Country: International technical standard
Kategorie: Technické normy 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.