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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

Jun 1, 1979

General information

90.93     Aug 29, 2022

ISO

ISO/TC 91

International Standard

71.100.40  

French   English  

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Scope

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.

Life cycle

NOW

PUBLISHED
ISO 4311:1979
90.93 Standard confirmed
Aug 29, 2022

National adoptions

SRPS ISO 4311:1994  
ISS

Anionic and non-ionic surface active agents — Determination of the critical micellization concentration — Method by measuring surface tension with a plate, stirrup or ring

90.93   Standard confirmed

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