SIST EN ISO 2871-1:2010

Surface active agents - Detergents - Determination of cationic-active matter content - Part 1: High-molecular-mass cationic-active matter (ISO 2871-1:2010)

ISO 2871-1:2010 specifies a method for the determination of high-molecular-mass cationic-active materials such as quaternary ammonium compounds in which two of the alkyl groups each contain 10 or more carbon atoms, e.g. distearyl-dimethyl-ammonium chlorides, or salts of imidazoline or 3-methylimidazoline in which long-chain acylaminoethyl and alkyl groups are substituted in the 1- and 2-positions, respectively.
The method is applicable to solids or to aqueous solutions of the active material. The method is not applicable if anionic surface active agents are present.

Tenside - Waschmittel - Bestimmung des Gehaltes der kationaktiven Substanz - Teil 1: Hochmolekulare kationaktive Substanz (ISO 2871-1:2010)

Dieser Teil von ISO 2871 legt ein Verfahren fest zur Bestimmung hochmolekularer kationaktiver Substanz, wie z. B.
a)   von quarternären Ammoniumverbindungen, in denen zwei der Alkylgruppen jeweils 10 oder mehr Kohlen¬stoffatome enthalten, beispielsweise von Distearyldimethylammoniumchlorid, oder
b)   von Salzen des Imidazolins oder des 3 Methylimidazolins, in denen langkettige Acylaminoethyl  und Alkyl Gruppen in der 1  oder 2 Stellung substituiert sind.
Das Verfahren gilt für Feststoffe oder wässrige Lösungen der Aktivsubstanz, wenn die relative Molmasse der kationaktiven Substanz bekannt ist oder vorher bestimmt wurde, falls ihr Gehalt als Massenanteil in Prozent angegeben wird.
Das Verfahren gilt nicht, wenn anionische Tenside vorliegen.

Agents de surface - Détergents - Détermination de la teneur en matière active cationique - Partie 1: Matière active cationique à haute masse moléculaire (ISO 2871-1:2010)

L'ISO 2871-1:2010 spécifie une méthode de détermination des matières actives cationiques à haute masse moléculaire telles que les composés d'ammonium quartenaire dans lesquels deux des groupes alkyl contiennent chacun 10 atomes de carbone ou plus, les chlorures de distéaryl-diméthyl-ammonium par exemple, ou les sels d'imidazoline ou méthyl-3-imidazoline dans lesquels les groupes acylaminoéthyl et les groupes alkyl à longues chaînes sont respectivement substitués en positions 1 et 2.
La méthode s'applique à la matière active à l'état solide ou en solution aqueuse. La méthode ne s'applique pas si des agents de surface anioniques sont présents.

Površinsko aktivne snovi - Detergenti - Določevanje kationsko aktivnih snovi - 1. del: Kationsko aktivne snovi z veliko molekulsko maso (ISO 2871-1:2010)

Ta del ISO 2871 določa metodo za določevanje kationsko aktivnih materialov z veliko molekulsko maso kot so
a) kvartarne amonijeve sestavine, v katerih dve od alkilnih skupin vsaka vsebuje 19 ali več atomov ogljika, npr. distearilni dimetilni amonijevi kloridi, ali
b) soli imidazolina ali 3-metilimidazolina v katerem so dolge verige akilaminoetila in alkilnih skupin zamenjane z 1- in 2-pozicijo v tem vrstnem redu.  Metoda velja za trdne snovi ali za vodne raztopine aktivnega materiala, kadar je relativna molekulska masa kationsko aktivne snovi znana ali kadar je bila prej dognana, če je njegova sestava izražena kot odstotek mase. Metoda ne velja, če so prisotni anionski površinski aktivni agenti.

General Information

• Status: Published
• Public Enquiry End Date: 19-Dec-2009
• Publication Date: 18-Aug-2010
• ICS: 71.100.40 - Surface active agents
• Technical Committee: KDS - Cosmetics, chemical disinfectants and surface active agents
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 06-Aug-2010
• Due Date: 11-Oct-2010
• Completion Date: 19-Aug-2010
• Ref Project: EN ISO 2871-1:2010 - Surface active agents - Detergents - Determination of cationic-active matter content - Part 1: High-molecular-mass cationic-active matter (ISO 2871-1:2010)

Relations

• Replaces: SIST EN ISO 2871-1:1997 - Surface active agents - Detergents - Determination of cationic-active matter content - Part 1: High-molecular-mass cationic-active matter (ISO 2871-1:1988)
• Effective Date: 01-Sep-2010

Overview

EN ISO 2871-1:2010 (ISO 2871-1:2010) specifies a validated laboratory method for the determination of high‑molecular‑mass cationic‑active matter in detergents and surface‑active agent formulations. It covers quaternary ammonium compounds where two alkyl groups have ≥10 carbon atoms (e.g., distearyl‑dimethyl‑ammonium chlorides) and certain imidazoline‑based salts. The procedure applies to solids and aqueous solutions when the relative molecular mass of the cationic material is known or previously determined. The method is not applicable if anionic surfactants are present.

Key topics and technical requirements

• Analytical principle: direct two‑phase titration - titration of a standard sodium lauryl sulfate solution with the test sample (referencing ISO 2271).
• Reagents: chloroform, propan‑2‑ol (isopropanol), a standard sodium lauryl sulfate solution and a mixed indicator (as specified in ISO 2271).
• Apparatus: ordinary laboratory glassware plus class A burette and one‑mark 1 000 ml volumetric flask (ISO 385, ISO 1042).
• Sample preparation: dissolve weighed test portion in propan‑2‑ol, dilute to 1 000 ml with water to prepare the titrant solution.
• Titration procedure: titrate 10 ml of the sodium lauryl sulfate standard against the prepared test solution; observe colour changes in the chloroform phase to identify end point.
• Expression of results: cationic content reported as percentage by mass, calculated from titration volume, SLS concentration, sample mass and the relative molecular mass of the cationic species.
• Performance characteristics: repeatability limit ≈ 1.5% of the mean; reproducibility limit ≈ 3% of the mean.
• Limitations and interferences: method tolerates certain non‑ionic agents and common inorganic detergent ingredients; it fails in presence of anionic surfactants. Some hydrotropes or bleaching agents may require evaluation or destruction prior to analysis.

Applications and who uses this standard

• Quality control and formulation testing in detergent, textile, household‑care and personal‑care manufacturing.
• Analytical and regulatory laboratories verifying cationic surfactant content for labelling, compliance and batch release.
• R&D groups characterizing high‑molecular‑mass quaternary ammonium compounds and imidazoline derivatives.
• Standards committees and testing service providers adopting a harmonized titration method for consistent reporting.

Keywords: EN ISO 2871-1:2010, ISO 2871-1:2010, determination of cationic-active matter, high-molecular-mass cationic-active matter, detergents, surface active agents, direct two-phase titration, sodium lauryl sulfate.

Related standards

• ISO 2271 - Determination of anionic‑active matter (direct two‑phase titration)
• ISO 607 - Sample division for surface active agents
• ISO 385, ISO 1042 - Laboratory glassware specifications
• ISO 2871‑2 - Cationic‑active matter of low molecular mass (200–500)

Standards Content (Sample)

SLOVENSKI STANDARD
01-september-2010
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SIST EN ISO 2871-1:1997
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GHO.DWLRQVNRDNWLYQHVQRYL]YHOLNRPROHNXOVNRPDVR,62
Surface active agents - Detergents - Determination of cationic-active matter content -
Part 1: High-molecular-mass cationic-active matter (ISO 2871-1:2010)
Tenside - Waschmittel - Bestimmung des Gehaltes der kationaktiven Substanz - Teil 1:
Hochmolekulare kationaktive Substanz (ISO 2871-1:2010)
Agents de surface - Détergents - Détermination de la teneur en matière active cationique
- Partie 1: Matière active cationique à haute masse moléculaire (ISO 2871-1:2010)
Ta slovenski standard je istoveten z: EN ISO 2871-1:2010
ICS:
71.100.40 Površinsko aktivna sredstva Surface active agents
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN ISO 2871-1
NORME EUROPÉENNE
EUROPÄISCHE NORM
February 2010
ICS 71.100.40 Supersedes EN ISO 2871-1:1994
English Version
Surface active agents - Detergents - Determination of cationic-
active matter content - Part 1: High-molecular-mass cationic-
active matter (ISO 2871-1:2010)
Agents de surface - Détergents - Détermination de la Tenside - Waschmittel - Bestimmung des Gehaltes der
teneur en matière active cationique - Partie 1: Matière kationaktiven Substanz - Teil 1: Hochmolekulare
active cationique à haute masse moléculaire (ISO 2871- kationaktive Substanz (ISO 2871-1:2010)
1:2010)
This European Standard was approved by CEN on 11 February 2010.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European
Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national
standards may be obtained on application to the CEN Management Centre or to any CEN member.

This European Standard exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as the
official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland,
Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.

EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2010 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 2871-1:2010: E
worldwide for CEN national Members.

Contents Page
Foreword .3

Foreword
This document (EN ISO 2871-1:2010) has been prepared by Technical Committee ISO/TC 91 "Surface active
agents" in collaboration with Technical Committee CEN/TC 276 “Surface active agents” the secretariat of
which is held by AFNOR.
This European Standard shall be given the status of a national standard, either by publication of an identical
text or by endorsement, at the latest by August 2010, and conflicting national standards shall be withdrawn at
the latest by August 2010.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN ISO 2871-1:1994.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following
countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech
Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain,
Sweden, Switzerland and the United Kingdom.
Endorsement notice
The text of ISO 2871-1:2010 has been approved by CEN as a EN ISO 2871-1:2010 without any modification.

INTERNATIONAL ISO
STANDARD 2871-1
Second edition
2010-02-15
Surface active agents — Detergents —
Determination of cationic-active matter
content —
Part 1:
High-molecular-mass cationic-active
matter
Agents de surface — Détergents — Détermination de la teneur en
matière active cationique —
Partie 1: Matière active cationique à haute masse moléculaire

Reference number
ISO 2871-1:2010(E)
©
ISO 2010
ISO 2871-1:2010(E)
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ISO 2871-1:2010(E)
Foreword
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