Објављен
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.
ОБЈАВЉЕН
ISO 4320:1977
90.60
Завршетак поступка преиспитивања стандарда
3. 9. 2024.
Nejonske površinski aktivne materije - Određivanje indeksa zamućenja - Volumetrijska metoda (identičan sa ISO 4320:1977 + Erratum:1980)
90.93 Одлука о потврђивању стандарда