GSO ISO 4311:2013
ISO 4311:1979
Gulf Standard
Current Edition
·
Approved on
01 April 2013
Anionic and non-ionic surface active agents - Determination of the critical micellization concentration - Method by measuring surface tension with a plate, stirrup or ring
GSO ISO 4311:2013 Files
English
3 Pages
Current Edition
Reference Language
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GSO ISO 4311:2013 Scope
Abstract
The method is carried out in the following way: Determination of the surface tension of a series of solutions whose concentrations bracket the critical micellization concentration. Plotting of the graph of surface tension as a function of the logarithm of the concentration: the critical micellization concentration corresponds to a singular point on this curve. In this point the curve shows a sharp change of slope.
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