International Standard
ISO 5522:1981
Fruits, vegetables and derived products — Determination of total sulphur dioxide content
Reference number
ISO 5522:1981
ISO 5522:1981
Edición 1
1981-09
1981-09
© ISO 2024
International Standard
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ISO 5522:1981
11576
No disponible en español
Publicado
(Edición 1, 1981)
Esta norma se revisó y confirmó por última vez en 2022.
Por lo tanto, esta versión es la actual.
Resumen
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.
Informaciones generales
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Estado: PublicadoFecha de publicación: 1981-09Etapa: Norma Internacional confirmada [90.93]
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Edición: 1Número de páginas: 7
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Comité Técnico :ISO/TC 34/SC 3ICS :67.080.01
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