ISO 6840:1982

Status : Published (Under review)

This standard was last reviewed and confirmed in 2019. Therefore this version remains current.

	Format	Language
std 1 40	PDF
std 2 40	Paper

CHF40

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Abstract

The determination is carried out as follows: Potentiometric determination of the chloride or bromide ion activity of a series of solutions of cationic surface active agents the concentration of which cover the expected micellization concentration. Plotting the graph of potential as a function of the logarithm of the concentration; the c.m.c. corresponds to the singularity on this curve. The method is applicable to purified cationic surface active agents (hydrochlorides and/or hydrobromides), which are soluble in water and which have a Krafft temperature below 60 degree Celsius.

General information

Status
: Published

Publication date
: 1982-10

Stage
: International Standard confirmed [90.93]
Edition
: 1

Number of pages
: 3
Technical Committee :
ISO/TC 91

ICS :
71.100.40
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