International Standard
ISO 4320:1977
Non-ionic surface active agents — Determination of cloud point index — Volumetric method
Reference number
ISO 4320:1977
ISO 4320:1977
Edición 1
1977-02
1977-02
© ISO 2024
International Standard
p
ISO 4320:1977
10191
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.
Resumen
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.
Ciclo de vida
Got a question?
Check out our FAQs
Customer care
+41 22 749 08 88
Opening hours:
Monday to Friday - 09:00-12:00, 14:00-17:00 (UTC+1)