Reference number
ISO 5379:1983
© ISO 2024
ISO 5379:1983
Starches and derived products — Determination of sulfur dioxide content — Acidimetric method and nephelometric method
Edition 1
1983-08
Withdrawn
Withdrawn (Edition 1, 1983)

Abstract

Entrainment in a current of nitrogen of the gas extracted from the acidified and heated product, and fixing and oxidation of the gas by bubbling through a dilute solution of neutral hydrogen peroxid. Titration of the sulphuric acid formed with standard volumetric sodium hydroxide solution of nephelometric determination in the case of low contents.

General information

  • Status
     : Withdrawn
    Publication date
     : 1983-08
    Stage
    : Withdrawal of International Standard [95.99]
  • Edition
     : 1
    Number of pages
     : 6
  • Technical Committee :
    ISO/TC 93
    ICS :
    67.180.20 
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