International Standard
ISO 3423:1975
Sulphuric acid and oleums for industrial use — Determination of sulphur dioxide content — Iodometric method
Reference number
ISO 3423:1975
Edición 1
International Standard
Vista previa
ISO 3423:1975
No disponible en español
Publicado (Edición 1, 1975)
Esta norma se revisó y confirmó por última vez en 2019. Por lo tanto, esta versión es la actual.

ISO 3423:1975

ISO 3423:1975
CHF 42
Convertir Franco suizo (CHF) a tu moneda


Applicable of products the SO2 content of which is equal to or more than 2 mg/kg. Based on the displacement of the sulphur dioxide present in the test portion by a current of pure nitrogen and absorption in a known volume of iodine solution. Titration of the excess of iodine with standard volumetric sodium thiosulphate solution. The diagram of the glass apparatus for absorption is shown in a figure.

Informaciones generales

  •  : Publicado
     : 1975-11
    : Norma Internacional confirmada [90.93]
  •  : 1
     : 3
  • ISO/TC 47
  • RSS actualizaciones

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