EN 13996:2002

Surface active agents - Foaming power and antifoaming power - Turbine stirring method

This European Standard specifies a method for measuring the foaming power of a surface active agent and the antifoaming power of a defoamer with regard to a foaming solution.
The method is applicable to all surface active agents and particularly to low foaming products and antifoaming surface active agents.
However, measurement of the foaming power of solutions of readily hydrolyzable agents does not give valid results, as the hydrolysis products gather in the films of liquid and affect the persistence of the foam.

Grenzflächenaktive Stoffe - Schäumvermögen und Entschäumerwirkung - Verfahren mittels Turbinenrührgerät

Agents de surface - Pouvoir moussant et pouvoir antimoussant - Méthode d'agitation par turbine

La présente Norme européenne spécifie une méthode de mesurage du pouvoir moussant d'un agent de surface et du pouvoir antimoussant d'un antimoussant vis-à-vis d'une solution moussante.
La méthode est applicable à tous les agents de surface et en particulier aux produits faiblement moussants et aux agents de surface antimoussants.
Toutefois, le mesurage du pouvoir moussant des solutions d'agents de surface facilement hydrolysables ne donne pas de résultats valables, puisque les produits d'hydrolyse se rassemblent dans les films de liquide et intervient sur la persistance de la mousse.

Površinsko aktivne snovi – Moč penjenja in protipenjenja – Metoda turbinskega mešanja

General Information

• Status: Published
• Publication Date: 22-Oct-2002
• Withdrawal Date: 29-Apr-2003
• ICS: 71.100.40 - Surface active agents
• Technical Committee: CEN/TC 276 - Surface active agents
• Drafting Committee: CEN/TC 276/WG 2 - Methods of test
• Current Stage: 9060 - Closure of 2 Year Review Enquiry - Review Enquiry
• Start Date: 03-Jun-2020
• Completion Date: 03-Jun-2020
• Ref Project: SIST EN 13996:2002 - Surface active agents - Foaming power and antifoaming power - Turbine stirring method

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.PHãDQMDGrenzflächenaktive Stoffe - Schäumvermögen und Entschäumerwirkung - Verfahren mittels TurbinenrührgerätAgents de surface - Pouvoir moussant et pouvoir antimoussant - Méthode d'agitation par turbineSurface active agents - Foaming power and antifoaming power - Turbine stirring method71.100.40Površinsko aktivna sredstvaSurface active agentsICS:Ta slovenski standard je istoveten z:EN 13996:2002SIST EN 13996:2002en01-december-2002SIST EN 13996:2002SLOVENSKI
STANDARD



SIST EN 13996:2002



EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 13996October 2002ICS 71.100.40English versionSurface active agents - Foaming power and antifoaming power -Turbine stirring methodAgents de surface - Pouvoir moussant et pouvoirantimoussant - Méthode d'agitaion par turbineGrenzflächenaktive Stoffe - Schäumvermögen undEntschäumerwirkung - Verfahren mittels TurbinenrührgerätThis European Standard was approved by CEN on 9 September 2002.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the 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 translationunder the responsibility of a CEN member into its own language and notified to the Management Centre has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2002 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 13996:2002 ESIST EN 13996:2002



EN 13996:2002 (E)2ContentspageForeword.31Scope.42Normative references.43Terms and definitions.44Principle.55Reagents.56Apparatus.57Sampling.68Preparation of test solutions.69Procedure.710Calculation and expression of results.711Precision.812Test report.8Annex A (informative)
Ring test result.15SIST EN 13996:2002



EN 13996:2002 (E)3ForewordThis document (EN 13996:2002) has been prepared by Technical Committee CEN /TC 276 "Surface activeagents", 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 orby endorsement, at the latest by April 2003 and conflicting national standards shall be withdrawn at the latest byApril 2003.Annex A is informative.According to the CEN/CENELE
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