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.
Frequently Asked Questions
EN 14111:2022 is a standard published by the European Committee for Standardization (CEN). 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.
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.
EN 14111:2022 has the following relationships with other standards: It is inter standard links to EN 14111:2003. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
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.
You can purchase EN 14111:2022 directly from iTeh Standards. The document is available in PDF format and is delivered instantly after payment. Add the standard to your cart and complete the secure checkout process. iTeh Standards is an authorized distributor of CEN standards.
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
...
Die Norm EN 14111:2022 befasst sich mit der Bestimmung des Iodwerts in Fettsäure-Methylestern (FAME) und bietet eine titrimetrische Methode zur Analyse dieses wichtigen Parameters. Der Iodwert ist ein entscheidender Indikator für den Grad der ungesättigten Fettsäuren in FAME und hat somit große Bedeutung in der Chemie und Lebensmittelindustrie. Der Umfang dieses Dokuments ist klar definiert; es spezifiziert nicht nur die Methodik zur Bestimmung des Iodwerts, sondern gibt auch präzise Angaben zur Präzision der Methode. Die Ergebnisse dieser Analyse wurden durch eine Round Robin-Übung validiert, bei der Iodwerte im Bereich von 111 g Iod/100 g bis 129 g Iod/100 g getestet wurden. Dies hebt die Stärken der Norm hervor, da die geringen Variationen innerhalb dieser Werte eine hohe Zuverlässigkeit der Methodik bestätigen. Es ist wichtig zu beachten, dass die Methode auch für niedrigere Iodwerte anwendbar ist, jedoch die Präzision in diesen Bereichen nicht explizit anerkannt ist, was eine sinnvolle Einschränkung darstellt. Ein weiterer bedeutender Aspekt dieser Norm ist die klare Warnung hinsichtlich der Verwendung gefährlicher Materialien, Methoden und Geräte. Nutzer der Norm werden aufgefordert, geeignete Sicherheitsmaßnahmen zu ergreifen, was auf das Verantwortungsbewusstsein und die Gewissenhaftigkeit der Norm hinweist. Dies unterstreicht nicht nur die Relevanz der Norm für die Branche, sondern zeigt auch, dass die Sicherheit von Bedienern und Prozessen beim Arbeiten mit chemischen Substanzen höchste Priorität hat. Zusammenfassend lässt sich sagen, dass die EN 14111:2022 eine relevante und präzise Norm für die Bestimmung des Iodwerts in FAME darstellt, die wichtige Richtlinien für die Anwendung in der Industrie enthält, während sie gleichzeitig auf die potenziellen Gefahren hinweist, die mit der Handhabung der chemischen Materialien verbunden sind.
The standard EN 14111:2022 presents a comprehensive methodology for the determination of the iodine value in Fatty Acid Methyl Esters (FAME). Its specific focus on a titrimetric method ensures a precise evaluation of iodine levels, which is critical for assessing the quality and application of fatty acid derivatives in various industries, including biofuels and food production. A notable strength of this standard lies in its rigorously defined precision statement, which was established through a Round Robin exercise. This statistical backing underscores the reliability of the results within the specified iodine value range of 111 g iodine/100 g to 129 g iodine/100 g. Such a clearly delineated scope not only enhances the method's credibility but also facilitates consistency in testing across laboratories. While the standard allows for applications involving lower iodine values, it transparently communicates that the precision for values below 111 g iodine/100 g has not been established. This critical information enables users to make informed decisions regarding the applicability of this method to their specific needs, thus maintaining the integrity of analytical results. Moreover, EN 14111:2022 includes a cautionary note regarding the hazards related to the materials, operations, and equipment associated with the iodine value determination method. By emphasizing the responsibility of users to implement safety measures, the standard aligns with best practices in laboratory safety and risk management. In summary, EN 14111:2022 provides a well-structured and scientifically validated approach for determining iodine values in FAME. Its strengths lie in its precision statement, clear limitations, and attention to safety, making it a relevant and essential standard for professionals engaged in the analysis and application of fat and oil derivatives.
표준 참고 문서 EN 14111:2022는 지방산 메틸 에스터(FAME)의 요오드 값을 결정하기 위한 적정법을 규정하고 있습니다. 이 문서의 범위는 FAME의 요오드 값을 정확하게 측정할 수 있는 방법론을 제공하는 것으로, 이는 식품 및 화학 산업에서 지방 및 기름의 품질 관리를 위한 중요한 기준이 됩니다. 이 표준의 강점은 높은 정밀도를 통해 요오드 값을 111 g 요오드/100 g에서 129 g 요오드/100 g 범위 내에서 신뢰성 있게 측정할 수 있다는 점입니다. 실험실의 품질 보증 과정을 통해 검증된 이 테스트 방법은 실용적이고 표준화된 절차를 통해 일관된 결과를 제공합니다. 또한, 이 방법은 낮은 요오드 값에 대해서도 적용 가능하지만, 111 g 요오드/100 g 이하의 경우 정밀도에 대한 명확한 명세는 마련되어 있지 않다는 점을 유의해야 합니다. 이 문서의 실제 응용에 있어 주의해야 할 점은 유해 물질, 작업, 장비의 사용 가능성을 언급하고 있으며, 사용자는 안전하고 건강을 보장하기 위한 적절한 조치를 취할 책임이 있습니다. 이러한 경고는 FAME의 요오드 값을 측정하는 과정에서의 안전성 문제를 다루기 위한 필요성을 강조하고 있습니다. SIST EN 14111:2022 문서는 FAME의 정확한 분석 및 품질 판단에 있어 업계에서 필수적인 기준으로 자리 잡고 있으며, 이로 인해 지방 및 기름의 파생물이 안전하고 효과적으로 다뤄질 수 있는 기틀을 제공합니다. 이 표준은 실험실 및 산업 분야에서 유용하게 활용될 수 있을 것입니다.
La norme SIST EN 14111:2022 se concentre sur les dérivés des graisses et des huiles, spécifiquement sur la détermination de la valeur d'iode des esters méthyliques d'acides gras (FAME). Le champ d'application de ce document précise une méthode titrimétrique pour évaluer la valeur d'iode dans les produits FAME, offrant ainsi une approche standardisée et fiable pour les professionnels du secteur. L'un des points forts de cette norme réside dans sa précision, établie lors d'un exercice de Round Robin. Les valeurs d'iode mesurées dans le cadre de cette étude variaient de 111 g d'iode/100 g à 129 g d'iode/100 g, ce qui donne aux utilisateurs une confiance accrue dans la validité des résultats obtenus. De plus, bien que la méthode soit applicable pour des valeurs d'iode inférieures, il est crucial de noter que la déclaration de précision pour ces valeurs plus basses n'est pas établie, ce qui souligne l'importance de respecter les limites définies pour garantir des résultats fiables. La pertinence de cette norme est accentuée par son application dans des domaines critiques où la composition et la qualité des FAME sont essentielles. En fournissant une méthode normalisée pour la détermination de la valeur d'iode, cette norme contribue à l'harmonisation des tests au sein de l'industrie, facilitant ainsi la communication et l'échange d'informations entre les différents acteurs. Cependant, il est impératif de prendre en compte les avertissements concernant l'utilisation de cette méthode, car elle peut impliquer des matériaux, des opérations et des équipements dangereux. Cela renforce la responsabilité des utilisateurs de veiller à la sécurité et à la santé du personnel en amont de l'application de ce document, en s'assurant que toutes les restrictions nécessaires sont respectées. En résumé, la norme SIST EN 14111:2022 se révèle être un outil essentiel pour la détermination de la valeur d'iode dans les esters méthyliques d'acides gras, avec un cadre précis et des validations robustes, consolidant ainsi son importance dans l'industrie des graisses et des huiles.
EN 14111:2022は、脂肪酸メチルエステル（FAME）のヨウ素価を決定するための滴定法を規定した標準文書です。この標準の範囲は、ヨウ素価の測定手法を明示しており、特に111 gヨウ素/100 gから129 gヨウ素/100 gの範囲での精度声明が得られています。この測定手法は、より低いヨウ素価にも適用可能ですが、111 gヨウ素/100 g未満のヨウ素価に対しては精度声明が確立されていない点に留意する必要があります。 この標準の強みは、FAMEの分析における精密な水準を提供し、業界が必要とする信頼性の高い測定方法を確立しているところにあります。また、滴定法という明確な手法を採用しているため、実施の際も比較的扱いやすく、 Laboratoriesが日常的に使用するための基準となることが期待されます。 さらに、EN 14111:2022は、FAMEの品質管理において非常に関連性が高いです。リパブリックの技術や化学的特性の把握に寄与し、製品の一貫性を確保するための重要な基盤を提供しています。ただし、文書で言及されているように、使用時に危険な材料や操作が伴う可能性があるため、適切な安全対策を講じることが求められます。この点は、利用者が安全性と健康を確保するための義務を持つことを強調しており、業界内での認識を深める必要があります。 全体として、EN 14111:2022は、FAMEのヨウ素価を正確に測定する手法を提供し、品質管理のための強力なツールとして機能することから、関連する分野において極めて重要な標準となっています。
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.
Loading comments...