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BS EN 1890:2006

Current
Current

The latest, up-to-date edition.

Surface active agents. Determination of cloud point of non-ionic surface active agents obtained by condensation of ethylene oxide
Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

31-07-2006

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Reagents
6 Apparatus
7 Preparation and storage of samples
8 Procedure
9 Expression of results
10 Precision
11 Test report
Bibliography

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.

This document specifies methods for the determination of the cloud point of solutions of non-ionic surface active agents obtained by the reaction of ethylene oxide with a hydrophobic base molecule. This document primarily applies to surfactants obtained by reaction of ethylene oxide with hydrophobic base molecules, such as fatty alcohols, fatty acids, long-chain alkylphenols, fatty amines, fatty acid esters of sugar derivatives among other ethoxylated non-ionic surfactants, which are by far the most commonly used. NOTE Other non-ionic surfactants containing other structural units, such as propylene oxide-ethylene oxide block copolymers, have distinctive behaviours that make the determination of the cloud point more difficult. This leads sometimes to a gradual turbidity over a temperature range of several degrees or even to the occurrence of two cloud points at significantly different temperatures.

Committee
CII/34
DevelopmentNote
Supersedes BS 6829-4.1(1991) and 95/122243 DC (08/2004)
DocumentType
Standard
Pages
14
PublisherName
British Standards Institution
Status
Current
Supersedes

Standards Relationship
NF EN 1890 : 2006 Identical
EN 1890:2006 Identical
NEN EN 1890 : 2006 Identical
I.S. EN 1890:2006 Identical
UNE-EN 1890:2006 Identical
NBN EN 1890 : 2006 Identical
NS EN 1890 : 2ED 2006 Identical
SN EN 1890 : 2006 Identical
UNI EN 1890 : 2006 Identical
DIN EN 1890:2006-09 Identical

ISO 1065:1991 Non-ionic surface-active agents obtained from ethylene oxide and mixed non-ionic surface-active agents Determination of cloud point
ISO 607:1980 Surface active agents and detergents Methods of sample division
ISO 3696:1987 Water for analytical laboratory use — Specification and test methods
EN ISO 3696:1995 Water for analytical laboratory use - Specification and test methods (ISO 3696:1987)
EN ISO 862 : 1995 SURFACE ACTIVE AGENTS - VOCABULARY

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