EN ISO 4320:1997
Current
The latest, up-to-date edition.
Non-ionic surface active agents - Determination of cloud point index - Volumetric method (ISO 4320:1977, Including Erratum:1980)
01-05-1997
FOREWORD
0 INTRODUCTION
1 SCOPE
2 FIELD OF APPLICATION
3 REFERENCE
4 DEFINITION
5 PRINCIPLE
6 REAGENTS
7 APPARATUS
8 SAMPLING
9 PROCEDURE
10 EXPRESSION OF RESULTS
11 TEST REPORT
The determination is carried out by adding, at 30 degree Celsius, of distilled water to a propanol solution to the surface active agent until the appearance of cloudiness. The determination of the cloud point index provided a way of characterizing weakly alkoxylated derivates and their hydrocarbon hydrophobic groups. This simple and rapid measurement is a valuable means for checking the level of alkoxylation of non-ionic derivatives intended, for example, for sulphonation.
| Committee |
CEN/TC 276
|
| DocumentType |
Standard
|
| PublisherName |
Comite Europeen de Normalisation
|
| Status |
Current
|
| Standards | Relationship |
| I.S. EN ISO 4320:1998 | Identical |
| NF EN ISO 4320 : 1997 | Identical |
| BS EN ISO 4320:1998 | Identical |
| NBN EN ISO 4320 : 1997 | Identical |
| NEN EN ISO 4320 : 1997 | Identical |
| PN EN ISO 4320 : 2000 | Identical |
| ISO 4320:1977 | Identical |
| NS EN ISO 4320 : 1ED 1997 | Identical |
| UNE-EN ISO 4320:1997 | Identical |
| DIN EN ISO 4320:1997-07 | Identical |
| EN 12836:2002 | Surface active agents - Determination of the water number of alkoxylated products |
| ENV 12836 : 1999 | SURFACE ACTIVE AGENTS - DETERMINATION OF THE WATER NUMBER OF ALKOXYLATED PRODUCTS |
| I.S. EN 12836:2002 | SURFACE ACTIVE AGENTS - DETERMINATION OF THE WATER NUMBER OF ALKOXYLATED PRODUCTS |
| DD ENV 12836:2001 | Surface active agents. Determination of the water number of alkoxylated products |
| BS EN 12836:2002 | Surface active agents. Determination of the water number of alkoxylated products |
| ISO 607:1980 | Surface active agents and detergents — Methods of sample division |