International Standard
ISO 4311:1979
Anionic and non-ionic surface active agents — Determination of the critical micellization concentration — Method by measuring surface tension with a plate, stirrup or ring
Reference number
ISO 4311:1979
ISO 4311:1979
Edición 1
1979-06
1979-06
© ISO 2024
International Standard
p
ISO 4311:1979
10177
No disponible en español
Publicado
(Edición 1, 1979)
Esta norma se revisó y confirmó por última vez en 2022.
Por lo tanto, esta versión es la actual.
Resumen
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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