ISO 5522:1981

Fruits, vegetables and derived products — Determination of total sulphur dioxide content

STANDARD published on 1.9.1981

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The information about the standard:

Designation standards: ISO 5522:1981
Publication date standards: 1.9.1981
The number of pages: 7
Approximate weight : 21 g (0.05 lbs)
Country: International technical standard
Category: Technical standards ISO

Annotation of standard text ISO 5522:1981 :

Description / Abstract: The method consists in acidifying and heating a test portion, entraining, in a current of nitrogen, the gas liberated, absorbing and oxidizing the gas by bubbling it through a neutral, dilute hydrogen peroxide solution, then determining the sulphuric acid thus formed using standard volumetric sodium hydroxide solution. Verification of the determination is described in the annexes A and B, respectively.