EN 14112:2003

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.ORþHYDQMHErzeugnisse aus pflanzlichen und tierischen Fetten und Ölen - Fettsäure-Methylester (FAME) - Bestimmung der Oxidationsstabilität (beschleunigter Oxidationstest)Produits dérivés des corps gras - Esters méthyliques d'acides gras (EMAG) - Détermination de la stabilité a l'oxydation (Essai d'oxydation accélérée)Fat and oil derivatives - Fatty Acid Methyl Esters (FAME) - Determination of oxidation stability (accelerated oxidation test)67.200.10Animal and vegetable fats and oilsICS:Ta slovenski standard je istoveten z:EN 14112:2003SIST EN 14112:2003en01-november-2003SIST EN 14112:2003SLOVENSKI
STANDARD



SIST EN 14112:2003



EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 14112April 2003ICS 67.200.10English versionFat and oil derivatives - Fatty Acid Methyl Esters (FAME) -Determination of oxidation stability (accelerated oxidation test)Produits dérivés des corps gras - Esters méthyliquesd'acides gras (EMAG) - Détermination de la stabilité àl'oxydation (essai d'oxydation accélérée)Erzeugnisse aus pflanzlichen und tierischen Fetten un Ölen- Fettsäure-Methylester (FAME) - Bestimmung derOxidationsbeständigkeit (Beschleunigte Oxydationsprüfung)This European Standard was approved by CEN on 2 January 2003.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,Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerland and UnitedKingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2003 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 14112:2003 ESIST EN 14112:2003



EN 14112:2003 (E)2ForewordThis document (EN 14112:2002) has been prepared by Technical Committee CEN/TC 307, "Oilseeds, vegetableand animal fats and oils and their by-products - Methods of sampling and analysis", the secretariat of which is heldby 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 October 2003, and conflicting national standards shall be withdrawn at the latestby October 2003.This document has been prepared under Mandate M/245 on Fatty Acid Methylester (FAME) given to CEN by theEuropean Commission and the European Free Trade Association.Annexes A and B are informative.According to the CEN/CENELEC Internal Regulations, the national standards organizations of the followingcountries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland,France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal,Slovakia, Spain, Sweden, Switzerland and the United Kingdom.SIST EN 14112:2003



EN 14112:2003 (E)3IntroductionThis European Standard is based on the ISO 6886 [1], which was specifically adapted for the determination ofoxidation stability of fatty acid methyl esters (FAME).SIST EN 14112:2003



EN 14112:2003 (E)41 ScopeThis European Standard specifies a method for the determination of the oxidation stability of fatty acid methylesters (FAME) at 110 °C.2 Terms and definitionsFor the purposes of this European Standard, the following terms and definitions apply.2.1induction periodtime which passes between the moment when the measurement is started and the moment when the formation ofoxidation products rapidly begins to increase2.2oxidation stabilityinduction period determined according to the procedure specified in this European Standard. Oxidation stability isexpressed in hours3 PrincipleA stream of purified air is passed through the sample which has been brought to a specified temperature. Thevapours released during the oxidation process, together with the air, are passed into a flask containing water whichhas been demineralized or distilled and contains an electrode for measuring the conductivity. The electrode isconnected to a measuring and recording device. It indicates the end of the induction period when the conductivitybegins to increase rapidly. This accelerated increase is caused by the dissociation of vola
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