Name: EN 14669:2005
Brand: CEN

Surface active agents - Determination of anionic surface active agents and soaps in detergents and cleansers - Potentiometric two-phase titration method

Published date

22-06-2005

Publisher

Comite Europeen de Normalisation

Foreword
1 Scope
2 Normative references
3 Principle
4 Reagents
5 Apparatus
6 Sampling and preparation of the test solution
7 Procedure
8 Calculation and expression of results
9 Precision
10 Test report
Annex A (informative) Titration apparatus settings
Annex B (informative) Potentiometric two-phase titration- typical
titration curve
Annex C (informative) Results of inter-laboratory test
Bibliography

This European Standard specifies a method for the determination of the content of anionic surface active agents and soaps in detergents and cleansers, defined as being the amount of anionic surface active agents expressed in millimoles per 100 g of product.NOTE 1The applicability in products different that those tested should be checked in each particular case.NOTE 2In comparison to usual laboratory two-phase titration with visual endpoint determination (see ISO 2271), potentiometric titration offers the advantage of automation; operator-dependent differences in recognising the equivalence point can be neglected, and a non-critical solvent replaces the toxicologically critical chloroform.

Committee	CEN/TC 276
DocumentType	Standard
PublisherName	Comite Europeen de Normalisation
Status	Current

Standards	Relationship
UNI EN 14669 : 2005	Identical
NEN EN 14669 : 2006	Identical
NF EN 14669 : 2005	Identical
PN EN 14669 : 2005	Identical
UNE-EN 14669:2005	Identical
NS EN 14669 : 1ED 2005	Identical
I.S. EN 14669:2005	Identical
DIN EN 14669 E : 2005	Identical
BS EN 14669:2005	Identical
NBN EN 14669 : 2005	Identical
SN EN 14669 : 2005	Identical
DIN EN 14669:2005-09	Identical

ISO 2271:1989	Surface active agents Detergents Determination of anionic-active matter by manual or mechanical direct two-phase titration procedure
ISO 607:1980	Surface active agents and detergents Methods of sample division
ISO 5725-2:1994	Accuracy (trueness and precision) of measurement methods and results Part 2: Basic method for the determination of repeatability and reproducibility of a standard measurement method
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 14670:2005	Surface active agents - Sodium dodecyl sulfate - Analytical method