International Standard
ISO 5523:1981
Liquid fruit and vegetable products — Determination of sulphur dioxide content (Routine method)
Reference number
ISO 5523:1981
Edición 1
1981-08
International Standard
Vista previa
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ISO 5523:1981
11577
No disponible en español
Publicado (Edición 1, 1981)
Esta norma se revisó y confirmó por última vez en 2023. Por lo tanto, esta versión es la actual.

ISO 5523:1981

ISO 5523:1981
11577
Formato
Idioma
CHF 42
Convertir Franco suizo (CHF) a tu moneda

Resumen

The determination of free sulphur dioxide consists in direkt iodometric titration of the product at a pH between 0,7 and 1, followed by blank titration of the product, freed from sulphur dioxide by boiling under reflux or by binding its free sulphur dioxide content with an exess of acetaldehyde or propioaldehyde. The bond sulphur dioxide is determined after titration of free compound, rendering of the produkt alkaline and titration of the sulphur dioxideliberated by hydrolysis with iodine in an acid medium.

Informaciones generales

  •  : Publicado
     : 1981-08
    : Norma Internacional confirmada [90.93]
  •  : 1
     : 3
  • ISO/TC 34/SC 3
    67.080.01 
  • RSS actualizaciones

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