0 Items
My account
Phone: (011) 7541-421, 3409-301, 3409-335, 6547-293, 3409-310
E-mail: Standards sales: prodaja@iss.rs Education: iss-edukacija@iss.rs Information about standards: infocentar@iss.rs
Stevana Brakusa 2, 11030 Beograd
Main menu

SRPS ISO 6840:1994

Cationic surface active agents (Hydrochlorides and hydrobromides) — Determination of critical micellization concentration — Method by measurement of counter ion activity

Sep 8, 1994
Sep 8, 1994

General information

90.93     Nov 1, 2024

90.20    Oct 15, 2029

ISS

H091

International Standard

71.100.40  

Serbian  

Terms

Buying

Published

Language in which you want to receive the document.

Scope

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.

Life cycle

NOW

PUBLISHED
SRPS ISO 6840:1994
90.93 Standard confirmed
Nov 1, 2024

Related project

Adopted from ISO 6840:1982