EN ISO 16931:2009

Animal and vegetable fats and oils - Determination of polymerized triacylglycerols by high-performance size-exclusion chromatography (HPSEC) (ISO 16931:2009)

ISO 16931:2009 specifies a method using high-performance size-exclusion chromatography (HPSEC) to determine the contents, as mass fractions, of polymerized triacylglycerols (PTAGs) in oils and fats which contain at least 3 % (from peak areas) of these polymers. PTAGs (strictly speaking dimeric and oligomeric triacylglycerols) are formed during the heating of fats and oils, and thus, the method serves to assess the thermal deterioration of frying fats after use.
This method is applicable to frying fats and fats and oils that have been thermally treated, provided that the content of PTAGs is at least 3 %. It can also be applied to the determination of polymers in fats for animal feedstuffs, although in this case, the extraction method used can have an influence on the result.

Tierische und pflanzliche Fette und Öle - Bestimmung von polymerisierten Triacylglycerinen mit Hochleistungs-Ausschlusschromatographie (HPSEC) (ISO 16931:2009)

Diese Internationale Norm legt ein Verfahren zur Bestimmung der Gehalte an polymerisierten Triglyceriden in Ölen und Fetten, die mindestens 3 % (bezogen auf die Peakflächen) dieser Polymere enthalten, durch Hochleistungs-Größenausschlusschromatographie (en: high-performance size-exclusion chromatography (HPSEC)) fest. Polymerisierte Triglyceride (genau genommen dimere und oligomere Triglyceride) werden bei der Erhitzung von Fetten und Ölen gebildet; folglich dient dieses Verfahren der Beurteilung der thermisch bedingten Qualitätsminderung von Frittierfetten im Verlaufe ihrer Verwendung.
Das Verfahren ist auf Frittierfette anwendbar, die thermisch behandelt wurden, vorausgesetzt, der Gehalt an polymerisierten Triglyceriden beträgt mindestens 3 %. Es kann auch zur Bestimmung von Polymeren in Futterfetten angewendet werden. In diesem Fall kann das angewendete Extraktionsverfahren das Ergebnis beeinflussen (siehe ISO 6492).

Corps gras d'origines animale et végétale - Détermination de la teneur en triacylglycérols polymérisés par chromatographie liquide d'exclusion à haute performance (CLHP d'exclusion) (ISO 16931:2009)

L'ISO 16931:2009 spécifie une méthode utilisant la chromatographie liquide d'exclusion à haute performance (CLHP d'exclusion) pour la détermination de la teneur en triacylglycérols polymérisés (PTAG), en fraction massique, dans les corps gras contenant au moins 3 % (à partir des aires de pics) de ces polymères. Les PTAG (à proprement parler les triacylglycérols dimériques et oligomériques) se forment pendant le chauffage des corps gras; par conséquent, cette méthode sert à évaluer la détérioration thermique des corps gras ayant été utilisés en friture.
Cette méthode est applicable aux graisses de friture et aux corps gras ayant été traités thermiquement, à condition que la teneur en PTAG soit au moins égale à 3 %. Elle peut également être appliquée à la détermination des polymères dans les graisses contenues dans les aliments pour animaux. Dans ce cas, la méthode d'extraction utilisée peut avoir une influence sur le résultat.

Rastlinske in živalske maščobe in olja - Določevanje polimeriziranih triacilglicerolov s kromatografijo visoke ločljivosti z ločevanjem po velikosti (HPSEC) (ISO 16931:2009)

General Information

• Status: Published
• Publication Date: 14-Apr-2009
• Withdrawal Date: 30-Oct-2009
• ICS: 67.200.10 - Animal and vegetable fats and oils
• ICS: 67.220.10 - Spices and condiments
• Technical Committee: CEN/TC 307 - Oilseeds, vegetables and animal fats and oils and their by-products - Methods of sampling and analys
• Drafting Committee: CEN/TC 307 - Oilseeds, vegetables and animal fats and oils and their by-products - Methods of sampling and analys
• Current Stage: 6060 - Definitive text made available (DAV) - Publishing
• Start Date: 15-Apr-2009
• Due Date: 09-Jan-2011
• Completion Date: 15-Apr-2009
• Ref Project: SIST EN ISO 16931:2009 - Animal and vegetable fats and oils - Determination of polymerized triacylglycerols by high-performance size-exclusion chromatography (HPSEC) (ISO 16931:2009)

Relations

• Replaces: EN ISO 16931:2001 - Animal and vegetable fats and oils - Determination of polymerized triglycerides by high-performance size-exclusion chromatography (HPSEC) (ISO 16931:2001)
• Effective Date: 22-Dec-2008

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN ISO 16931:2009
01-julij-2009
1DGRPHãþD
SIST EN ISO 16931:2002
5DVWOLQVNHLQåLYDOVNHPDãþREHLQROMD'RORþHYDQMHSROLPHUL]LUDQLK
WULDFLOJOLFHURORYVNURPDWRJUDILMRYLVRNHORþOMLYRVWL]ORþHYDQMHPSRYHOLNRVWL
+36(&,62
Animal and vegetable fats and oils - Determination of polymerized triacylglycerols by
high-performance size-exclusion chromatography (HPSEC) (ISO 16931:2009)
Tierische und pflanzliche Fette und Öle - Bestimmung von polymerisierten
Triacylglycerinen mit Hochleistungs-Ausschlusschromatographie (HPSEC) (ISO
16931:2009)
Corps gras d'origines animale et végétale - Détermination de la teneur en triacylglycérols
polymérisés par chromatographie liquide d'exclusion à haute performance (CLHP
d'exclusion) (ISO 16931:2009)
Ta slovenski standard je istoveten z: EN ISO 16931:2009
ICS:
67.200.10 5DVWOLQVNHLQåLYDOVNH Animal and vegetable fats
PDãþREHLQROMD and oils
SIST EN ISO 16931:2009 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN ISO 16931:2009

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SIST EN ISO 16931:2009
EUROPEAN STANDARD
EN ISO 16931
NORME EUROPÉENNE
EUROPÄISCHE NORM
April 2009
ICS 67.200.10 Supersedes EN ISO 16931:2001
English Version
Animal and vegetable fats and oils - Determination of
polymerized triacylglycerols by high-performance size-exclusion
chromatography (HPSEC) (ISO 16931:2009)
Corps gras d'origines animale et végétale - Détermination Tierische und pflanzliche Fette und Öle - Bestimmung des
de la teneur en triacylglycérols polymérisés par Gehaltes an polymerisierten Triglyceriden mit
chromatographie liquide d'exclusion à haute performance Hochleistungs-Ausschlusschromatographie (HPSEC) (ISO
(CLHP d'exclusion) (ISO 16931:2009) 16931:2009)
This European Standard was approved by CEN on 16 March 2009.
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 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 Management Centre has the same status as the
official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, 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
© 2009 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 16931:2009: E
worldwide for CEN national Members.

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SIST EN ISO 16931:2009
EN ISO 16931:2009 (E)
Contents Page
Foreword .3

2

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SIST EN ISO 16931:2009
EN ISO 16931:2009 (E)
Foreword
This document (EN ISO 16931:2009) has been prepared by Technical Committee ISO/TC 34 "Agricultural
food products" in collaboration with 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 October 2009, and conflicting national standards shall be withdrawn at
the latest by October 2009.
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 16931:2001.
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, 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 I
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