International Standard
ISO 4320:1977
Non-ionic surface active agents — Determination of cloud point index — Volumetric method
Reference number
ISO 4320:1977
Edición 1
International Standard
Vista previa
ISO 4320:1977
No disponible en español
Publicado (Edición 1, 1977)
Esta norma se revisó y confirmó por última vez en 2019. Por lo tanto, esta versión es la actual.

ISO 4320:1977

ISO 4320:1977
CHF 42
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The determination is carried out by adding, at 30 degree Celsius, of distilled water to a propanol solution to the surface active agent until the appearance of cloudiness. The determination of the cloud point index provided a way of characterizing weakly alkoxylated derivates and their hydrocarbon hydrophobic groups. This simple and rapid measurement is a valuable means for checking the level of alkoxylation of non-ionic derivatives intended, for example, for sulphonation.

Informaciones generales

  •  : Publicado
     : 1977-02
    : Norma Internacional en proceso de revisión sistemática [90.20]
  •  : 1
     : 3
  • ISO/TC 91
  • RSS actualizaciones

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