NF EN 1890 : 2006

Avant-propos
Introduction
1 Domaine d'application
2 Références normatives
3 Termes et définitions
4 Principe
5 Réactifs
6 Appareillage
7 Préparation et stockage des échantillons
8 Mode opératoire
9 Expression des résultats
10 Fidélité
11 Rapport d'essai
Bibliographie

Defines procedures for determining the cloud point of solutions of non-ionic surface active agents obtained by the reaction of ethylene oxide with a hydrophobic base molecule. Applicable mainly to surfactants obtained by reaction of ethylene oxide with hydrophobic base molecules, eg fatty alcohols, fatty acids, long-chain alkylphenols, fatty amines, fatty acid esters of sugar derivatives among other ethoxylated non-ionic surfactants, which are the most commonly used.