EN ISO 3961:2011
(Main)Animal and vegetable fats and oils - Determination of iodine value (ISO 3961:2009)
Animal and vegetable fats and oils - Determination of iodine value (ISO 3961:2009)
ISO 3961:2009 specifies a reference method for the determination of the iodine value (IV) of animal and vegetable fats and oils, hereinafter referred to as fats.
Annex A describes a method for the calculation of the IV from fatty acid compositional data. This method is not applicable to fish oils.
Tierische und pflanzliche Fette und Öle - Bestimmung der Iodzahl (ISO 3961:2009)
Diese Internationale Norm legt ein Bezugsverfahren zur Bestimmung der Iodzahl (IZ) in tierischen und pflanzlichen Fetten und Ölen fest, die nachfolgend als Fette bezeichnet werden. Anhang A beschreibt ein Verfahren zur Berechnung der IZ aus Daten zur Fettsäurezusammensetzung. Dieses Verfahren ist nicht auf Fischöl anwendbar. ANMERKUNG Das Verfahren in Anhang A beruht auf dem Dokument AOCS Recommended Practice Cd 1c-85 [4] [Leitfaden zur empfohlenen Praxis der American Oil Chemists' Society (Amerikanische Öl-Chemiker-Gesellschaft)].
Corps gras d'origines animale et végétale - Détermination de l'indice d'iode (ISO 3961:2009)
L'ISO 3961:2009 spécifie une méthode de référence pour la détermination de l'indice d'iode (II) des huiles et graisses d'origines animale et végétale, désignées ci-après par le terme corps gras.
L'Annexe A décrit une méthode de calcul de l'II à partir de données relatives à la composition en acides gras. Cette méthode ne s'applique pas aux huiles de poisson.
Rastlinske in živalske maščobe in olja - Ugotavljanje jodnega števila (ISO 3961:2009)
Ta mednarodni standard določa referenčno metodo za ugotavljanje jodnega števila (IV) pri živalskih in rastlinskih maščobah in oljih, v nadaljevanju maščobe. Dodatek A opisuje metodo za izračunavanje IV iz podatkov o sestavi maščobnih kislin. Ta metoda ne velja za ribja olja.
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
01-januar-2012
1DGRPHãþD
SIST EN ISO 3961:2000
5DVWOLQVNHLQåLYDOVNHPDãþREHLQROMD8JRWDYOMDQMHMRGQHJDãWHYLOD ,62
Animal and vegetable fats and oils - Determination of iodine value (ISO 3961:2009)
Tierische und pflanzliche Fette und Öle - Bestimmung der Iodzahl (ISO 3961:2009)
Corps gras d'origines animale et végétale - Détermination de l'indice d'iode (ISO
3961:2009)
Ta slovenski standard je istoveten z: EN ISO 3961:2011
ICS:
67.200.10 5DVWOLQVNHLQåLYDOVNH Animal and vegetable fats
PDãþREHLQROMD and oils
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD
EN ISO 3961
NORME EUROPÉENNE
EUROPÄISCHE NORM
September 2011
ICS 67.200.10 Supersedes EN ISO 3961:1999
English Version
Animal and vegetable fats and oils - Determination of iodine
value (ISO 3961:2009)
Corps gras d'origines animale et végétale - Détermination Tierische und pflanzliche Fette und Öle - Bestimmung der
de l'indice d'iode (ISO 3961:2009) Iodzahl (ISO 3961:2009)
This European Standard was approved by CEN on 11 September 2011.
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, 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
© 2011 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 3961:2011: E
worldwide for CEN national Members.
Contents Page
Foreword .3
Foreword
The text of ISO 3961:2009 has been prepared by Technical Committee ISO/TC 34 “Food products” of the
International Organization for Standardization (ISO) and has been taken over as EN ISO 3961:2011 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 March 2012, and conflicting national standards shall be withdrawn at
the latest by March 2012.
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 3961:1999.
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 3961:2009 has been approved by CEN as a EN ISO 3961:2011 without any modification.
INTERNATIONAL ISO
STANDARD 3961
Fourth edition
2009-04-01
Animal and vegetable fats and oils —
Determination of iodine value
Corps gras d'origines animale et végétale — Détermination de l'indice
d'iode
Reference number
ISO 3961:2009(E)
©
ISO 2009
ISO 3961:2009(E)
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ii © ISO 2009 – All rights reserved
ISO 3961:2009(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies
(ISO member bodies). The work of preparing International Standards is normally carried out through ISO
technical committees. Each member body interested in a subject for which a technical committee has been
established has the right to be represented on that committee. International organizations, governmental and
non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the
International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International Standards
adopted by the technical committees are circulated to the member bodies for voting. Publication as an
International Standard requires approval by at least 75 % of the member bodies casting a vote.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. ISO shall not be held responsible for identifying any or all such patent rights.
ISO 3961 was prepared by Technical Committee ISO/TC 34, Food products, Subcommittee SC 11, Animal
and vegetable fats and oils.
This fourth edition cancels and replaces the third edition (ISO 3961:1996), which has been technically revised.
INTERNATIONAL STANDARD ISO 3961:2009(E)
Animal and vegetable fats and oils — Determination of iodine
value
1 Scope
This International Standard specifies a reference method for the determination of the iodine value (IV) of
animal and vegetable fats and oils, hereinafter referred to as fats.
Annex A describes a method for the calculation of the IV from fatty acid compositional data. This method is
not applicable to fish oils.
[4]
NOTE The method in Annex A is based upon the AOCS Recommended Practice Cd 1c-85 .
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenced
document (including any amendments) applies.
ISO 661, Animal and vegetable fats and oils — Preparation of test sample
ISO 3696, Water for analytical laboratory use — Specification and test methods
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
iodine value
IV
w
I
mass of halogen, expressed as iodine, absorbed by the test portion following the specified procedure, divided
by the mass of the test portion
NOTE The IV is expressed as grams per 100 g of fat.
4 Principle
Dissolution of a test portion in solvent and addition of Wijs reagent. After a specified time, addition of
potassium iodide and water, and titration of the liberated iodine with sodium thiosulfate solution.
NOTE Annex A describes a method for the calculation of the IV from fatty acid compositional data. However, this is
not intended to be a rapid method. The method gives two results from one analytical procedure. The volumetric method is
the reference method.
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