BS EN 1890:2006
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
Hardcopy , PDF
English
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.
| 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 |
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.
| Standards | Relationship |
| NF EN 1890 : 2006 | Identical |
| EN 1890:2006 | Identical |
| NEN EN 1890 : 2006 | Identical |
| I.S. EN 1890:2006 | Identical |
| NBN EN 1890 : 2006 | Identical |
| NS EN 1890 : 2ED 2006 | Identical |
| DIN EN 1890:2006-09 | Equivalent |
| DIN EN 1890:2006-09 | Identical |
| UNE-EN 1890:2006 | 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 - Trilingual version (ISO 862:1984/Cor 1:1993) |
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