ISO-4320 Non-ionic surface active agents -- Determination of cloud point index -- Volumetric method

ISO-4320 - 1ST EDITION - CURRENT


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 1ST EDITION - Feb. 1, 1977
 1ST EDITION ERRATUM - June 1, 1980

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.

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Document Number

ISO 4320:1977

Revision Level

1ST EDITION

Status

Current

Publication Date

Feb. 1, 1977

Committee Number

ISO TC 91