SIST EN 14111:2022
(Main)Fat and oil derivatives - Fatty Acid Methyl Esters (FAME) - Determination of iodine value
Fat and oil derivatives - Fatty Acid Methyl Esters (FAME) - Determination of iodine value
This document specifies a titrimetric method for the determination of iodine value in Fatty Acid Methyl Esters, hereinafter referred as FAME.
The precision statement of this test method was determined in a Round Robin exercise with iodine values in the range 111 g iodine/100 g to 129 g iodine/100 g.
The test method is also applicable for lower iodine values; however, the precision statement is not established for iodine values below 111 g iodine/100 g.
WARNING - The use of this document can involve hazardous materials, operations and equipment. This document does not purport to address all of the safety problems associated with its use. It is the responsibility of users of this document to take appropriate measures to ensure the safety and health of personnel prior to the application of the document, and to determine the applicability of any other restrictions for this purpose.
Erzeugnisse aus pflanzlichen und tierischen Fetten und Ölen - Fettsäure-Methylester (FAME) - Bestimmung der Iodzahl
Dieses Dokument legt ein titrimetrisches Verfahren zur Bestimmung der Iodzahl von Fettsäure Methylestern, nachfolgend FAME genannt, fest.
Die Präzisionsangabe dieses Prüfverfahrens wurde in einem Ringversuch mit Iodzahlen im Bereich 111 g Iod/100 g bis 129 g Iod/100 g bestimmt.
Dieses Prüfverfahren ist auch anzuwenden für niedrigere Iodzahlen, die Präzisionsangabe ist jedoch nicht für Iodzahlen unter 111 g Iod/100 g festgelegt.
WARNUNG - Die Anwendung dieses Dokuments kann die Anwendung gefährlicher Stoffe, Arbeitsgänge und Geräte mit sich bringen. Dieses Dokument beansprucht nicht, alle damit verbundenen Sicherheitsprobleme zu behandeln. Es liegt in der Verantwortung des Anwenders dieses Dokuments, vor der Anwendung dieses Dokuments geeignete Maßnahmen für die Sicherheit und den Gesundheitsschutz des Personals zu ergreifen, und die Geltung weiterer diesbezüglicher Auflagen zu prüfen.
Produits dérivés des corps gras - Esters méthyliques d'acides gras (EMAG) - Détermination de l'indice d'iode
Le présent document spécifie une méthode titrimétrique de détermination de l’indice d’iode des esters méthyliques d’acides gras, ci-après appelés EMAG.
Les mesures de fidélité de la présente méthode d’essai ont été déterminées lors d’un essai interlaboratoires avec des indices d’iode compris entre 111 g d’iode/100 g et 129 g d’iode/100 g.
La méthode d’essai s’applique également à des indices d’iode plus faibles ; cependant, les mesures de fidélité ne sont pas établies pour des indices d’iode inférieurs à 111 g d’iode/100 g.
AVERTISSEMENT - Le présent document peut impliquer l’utilisation de produits, de manipulations et d’équipements dangereux. Le présent document n’a pas pour objet d’aborder tous les problèmes de sécurité liés à son utilisation. Il incombe à l’utilisateur du présent document de prendre les mesures appropriées pour assurer l’hygiène et la sécurité du personnel avant l’application du présent document, et de déterminer l’applicabilité de toute autre restriction.
Derivati maščob in olj - Metil estri maščobnih kislin (FAME) - Določevanje jodnega števila
Ta dokument določa titrimetrijsko metodo za ugotavljanje jodnega števila v metilnih estrih maščobnih kislin (v nadaljevanju: FAME).
Izjava o natančnosti te preskusne metode je bila določena z medlaboratorijsko vajo z jodnimi števili v razponu od 111 g joda/100 g do 129 g joda/100 g.
Preskusna metoda se lahko uporablja tudi za nižje vrednosti joda, vendar izjava o natančnosti ni določena za jodna števila pod 111 g joda/100 g.
OPOZORILO: Pri uporabi tega dokumenta so lahko prisotni nevarni materiali, postopki in oprema. Ta dokument ne obravnava vseh varnostnih težav, ki se navezujejo na njegovo uporabo. Za sprejetje ustreznih ukrepov za zagotavljanje varnosti in zdravja osebja pred uporabo dokumenta ter za določanje, ali so potrebne morebitne druge omejitve za ta namen, so odgovorni uporabniki tega dokumenta.
General Information
Relations
Overview
EN 14111:2022 is a CEN standard that specifies a titrimetric method for determination of the iodine value in Fatty Acid Methyl Esters (FAME). It updates and supersedes EN 14111:2003 and is aligned with EN ISO 3961 adapted for FAME. The method uses Wijs reagent and back-titration with sodium thiosulfate to quantify unsaturation expressed as grams of iodine per 100 g of FAME. The precision statement was established in a round-robin for iodine values between 111–129 g I/100 g; the method can be applied to lower values but precision is not validated below 111 g I/100 g.
Key topics and requirements
- Scope: Titrimetric determination of iodine value in FAME (report as g iodine/100 g).
- Principle: Addition of Wijs reagent to a dissolved test portion; liberated iodine is reduced and titrated with standardized sodium thiosulfate after addition of potassium iodide and water.
- Reagents & apparatus: Wijs reagent, KI solution, starch indicator, standardized Na2S2O3 solution, solvent (cyclohexane/glacial acetic acid), 500 ml Erlenmeyer flasks, pipettes, burette, analytical balance.
- Test portion: Typical mass 0.13–0.15 g (adjusted for low iodine values).
- Calculation: Iodine value computed from titration volumes, sodium thiosulfate concentration and sample mass (formula provided in the standard).
- Precision: Repeatability limit r ≈ 3 g I/100 g and reproducibility limit R ≈ 5 g I/100 g (general values; see Clause 12 and Annex A for trial data).
- Safety: Use involves hazardous reagents and operations; users must implement laboratory safety and chemical handling procedures.
- Documentation: Test report must reference EN 14111:2022 and include sample ID, sampling method, result (rounded to nearest 1 g I/100 g), deviations and test date.
Applications and users
EN 14111:2022 is intended for:
- Quality control laboratories in biodiesel and FAME production (monitoring unsaturation level).
- Manufacturers of fats, oils and derivatives requiring standardized compositional analysis.
- Regulatory and conformity assessment bodies verifying product specifications.
- Research labs comparing FAME samples or validating production processes.
Practical uses include batch QC, specification compliance, and comparative analysis of feedstock-derived FAME (rapeseed, sunflower, etc.). The iodine value is commonly used as an indicator of unsaturation, which influences oxidative stability and product properties.
Related standards
- EN ISO 3961 - Determination of iodine value (basis for this method)
- EN ISO 661 - Preparation of test sample
- EN ISO 3170 / EN ISO 5555 - Sampling of petroleum/fats and oils
- EN ISO 3696 - Water for analytical laboratory use
- EN ISO 4259 - Precision data (interlaboratory statistics)
Keywords: EN 14111:2022, iodine value, FAME, Fatty Acid Methyl Esters, titrimetric method, Wijs reagent, sodium thiosulfate, CEN standard, biodiesel analysis.
Standards Content (Sample)
SLOVENSKI STANDARD
01-september-2022
Nadomešča:
SIST EN 14111:2003
Derivati maščob in olj - Metil estri maščobnih kislin (FAME) - Določevanje jodnega
števila
Fat and oil derivatives - Fatty Acid Methyl Esters (FAME) - Determination of iodine value
Erzeugnisse aus pflanzlichen und tierischen Fetten und Ölen - Fettsäure-Methylester
(FAME) - Bestimmung der Iodzahl
Produits dérivés des corps gras - Esters méthyliques d'acides gras (EMAG) -
Détermination de l'indice d'iode
Ta slovenski standard je istoveten z: EN 14111:2022
ICS:
67.200.10 Rastlinske in živalske Animal and vegetable fats
maščobe in olja and oils
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EN 14111
EUROPEAN STANDARD
NORME EUROPÉENNE
June 2022
EUROPÄISCHE NORM
ICS 67.200.10 Supersedes EN 14111:2003
English Version
Fat and oil derivatives - Fatty Acid Methyl Esters (FAME) -
Determination of iodine value
Produits dérivés des corps gras - Esters méthyliques Erzeugnisse aus pflanzlichen und tierischen Fetten und
d'acides gras (EMAG) - Détermination de l'indice d'iode Ölen - Fettsäure-Methylester (FAME) - Bestimmung
der Iodzahl
This European Standard was approved by CEN on 23 April 2022.
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-CENELEC 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-CENELEC 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, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2022 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 14111:2022 E
worldwide for CEN national Members.
Contents Page
European foreword . 3
Introduction . 4
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 5
4 Principle . 5
5 Reagents . 6
6 Apparatus . 6
7 Sampling . 6
8 Preparation . 6
9 Procedure . 6
10 Calculation . 7
11 Expression of results . 7
12 Precision . 7
13 Test report . 8
Annex A (informative) Result of an interlaboratory trial . 9
Bibliography . 10
European foreword
This document (EN 14111:2022) has been prepared by Technical Committee CEN/TC 307 “Oilseeds,
vegetable and animal fats and oils and their by-products - Methods of sampling and analysis”, 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 December 2022, and conflicting national standards shall
be withdrawn at the latest by December 2022.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN 14111:2003.
In comparison with the previous edition, the following technical modifications have been made:
— glass weighing scoops should no longer be inserted into the flask.
This document has been prepared under a mandate given to CEN by the European Commission and the
European Free Trade Association.
Any feedback and questions on this document should be directed to the users’ national standards body.
A complete listing of these bodies can be found on the CEN website.
According to the CEN-CENELEC Internal Regulations, the national standards organisations 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, Republic of North
Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United
Kingdom.
Introduction
This document is based on EN ISO 3961 [1] which was specifically adapted for the determination of
iodine value of Fatty Acid Methyl Esters (FAME).
1 Scope
This document specifies a titrimetric method for the determination of iodine value in Fatty Acid Methyl
Esters, hereinafter referred as FAME.
The precision statement of this test method was determined in a Round Robin exercise with iodine values
in the range 111 g iodine/100 g to 129 g iodine/100 g.
The test method is also applicable for lower iodine values; however, the precision statement is not
established for iodine values below 111 g iodine/100 g.
WARNING — The use of this document can involve hazardous materials, operations and equipment. This
document does not purport to address all of the safety problems as
...
Frequently Asked Questions
SIST EN 14111:2022 is a standard published by the Slovenian Institute for Standardization (SIST). Its full title is "Fat and oil derivatives - Fatty Acid Methyl Esters (FAME) - Determination of iodine value". This standard covers: This document specifies a titrimetric method for the determination of iodine value in Fatty Acid Methyl Esters, hereinafter referred as FAME. The precision statement of this test method was determined in a Round Robin exercise with iodine values in the range 111 g iodine/100 g to 129 g iodine/100 g. The test method is also applicable for lower iodine values; however, the precision statement is not established for iodine values below 111 g iodine/100 g. WARNING - The use of this document can involve hazardous materials, operations and equipment. This document does not purport to address all of the safety problems associated with its use. It is the responsibility of users of this document to take appropriate measures to ensure the safety and health of personnel prior to the application of the document, and to determine the applicability of any other restrictions for this purpose.
This document specifies a titrimetric method for the determination of iodine value in Fatty Acid Methyl Esters, hereinafter referred as FAME. The precision statement of this test method was determined in a Round Robin exercise with iodine values in the range 111 g iodine/100 g to 129 g iodine/100 g. The test method is also applicable for lower iodine values; however, the precision statement is not established for iodine values below 111 g iodine/100 g. WARNING - The use of this document can involve hazardous materials, operations and equipment. This document does not purport to address all of the safety problems associated with its use. It is the responsibility of users of this document to take appropriate measures to ensure the safety and health of personnel prior to the application of the document, and to determine the applicability of any other restrictions for this purpose.
SIST EN 14111:2022 is classified under the following ICS (International Classification for Standards) categories: 67.200.10 - Animal and vegetable fats and oils. The ICS classification helps identify the subject area and facilitates finding related standards.
SIST EN 14111:2022 has the following relationships with other standards: It is inter standard links to SIST EN 14111:2003. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
SIST EN 14111:2022 is associated with the following European legislation: Standardization Mandates: M/245. When a standard is cited in the Official Journal of the European Union, products manufactured in conformity with it benefit from a presumption of conformity with the essential requirements of the corresponding EU directive or regulation.
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