90.93 Standard confirmed Jan 28, 2009
CEN
CEN/TC 276 Surface active agents
European Norm
71.100.40 Surface active agents
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.
PUBLISHED
EN ISO 4320:1997
90.93
Standard confirmed
Jan 28, 2009