Reference number
ISO 5379:1983
ISO 5379:1983
Starches and derived products — Determination of sulfur dioxide content — Acidimetric method and nephelometric method
Edition 1
1983-08
Retirada
ISO 5379:1983
11421
Retirada (Edición 1, 1983)

Resumen

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.

Informaciones generales

  •  : Retirada
     : 1983-08
    : Retirada de la Norma Internacional [95.99]
  •  : 1
     : 6
  • ISO/TC 93
    67.180.20 
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