SIST EN ISO 6885:2007
(Main)Animal and vegetable fats and oils - Determination of anisidine value (ISO 6885:2006)
Animal and vegetable fats and oils - Determination of anisidine value (ISO 6885:2006)
This European Standard specifies a method for the determination of the anisidine value, which is a measure of the amount of aldehydes (principally a,ß-unsaturated aldehydes), in animal and vegetable fats and oils.
Tierische und pflanzliche Fette und Öle - Bestimmung der Anisidinzahl (ISO 6885:2006)
Corps gras d'origines animale et végétale - Détermination de l'indice d'anisidine (ISO 6885:2006)
L'ISO 6885:2006 spécifie une méthode de détermination de l'indice d'anisidine qui correspond à un mesurage de la quantité d'aldéhydes (principalement des aldéhydes alpha, bêta-insaturés) présents dans les corps gras d'origines animale et végétale.
Rastlinske in živalske maščobe in olja - Določevanje anisidinskega števila (ISO 6885:2006)
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN ISO 6885:2007
01-november-2007
1DGRPHãþD
SIST EN ISO 6885:2001
5DVWOLQVNHLQåLYDOVNHPDãþREHLQROMD'RORþHYDQMHDQLVLGLQVNHJDãWHYLOD ,62
Animal and vegetable fats and oils - Determination of anisidine value (ISO 6885:2006)
Tierische und pflanzliche Fette und Öle - Bestimmung der Anisidinzahl (ISO 6885:2006)
Corps gras d'origines animale et végétale - Détermination de l'indice d'anisidine (ISO
6885:2006)
Ta slovenski standard je istoveten z: EN ISO 6885:2007
ICS:
67.200.10 5DVWOLQVNHLQåLYDOVNH Animal and vegetable fats
PDãþREHLQROMD and oils
SIST EN ISO 6885:2007 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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EUROPEAN STANDARD
EN ISO 6885
NORME EUROPÉENNE
EUROPÄISCHE NORM
August 2007
ICS 67.200.10 Supersedes EN ISO 6885:2000
English Version
Animal and vegetable fats and oils - Determination of anisidine
value (ISO 6885:2006)
Corps gras d'origines animale et végétale - Détermination Tierische und pflanzliche Fette und Öle - Bestimmung der
de l'indice d'anisidine (ISO 6885:2006) Anisidinzahl (ISO 6885:2006)
This European Standard was approved by CEN on 26 July 2007.
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: rue de Stassart, 36 B-1050 Brussels
© 2007 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 6885:2007: E
worldwide for CEN national Members.
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EN ISO 6885:2007 (E)
Foreword
The text of ISO 6885:2006 has been prepared by Technical Committee ISO/TC 34 "Agricultural
food products” of the International Organization for Standardization (ISO) and has been taken
over as EN ISO 6885:2007 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 February 2008, and conflicting national
standards shall be withdrawn at the latest by February 2008.
This document supersedes EN ISO 6885:2000.
"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."
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 United
Kingdom.
Endorsement notice
The text of ISO 6885:2006 has been approved by CEN as EN ISO 6885:2007 without any
modifications.
2
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INTERNATIONAL ISO
STANDARD 6885
Third edition
2006-06-01
Animal and vegetable fats and oils —
Determination of anisidine value
Corps gras d'origines animale et végétale — Détermination de l'indice
d'anisidine
Reference number
ISO 6885:2006(E)
©
ISO 2006
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ISO 6885:2006(E)
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ii © ISO 2006 – All rights reserved
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ISO 6885:2006(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 6885 was prepared by Technical Committee ISO/TC 34, Food products, Subcommittee SC 11, Animal
and vegetable fats and oils.
This third edition cancels and replaces the second edition (ISO 6885:1998), which has been technically
revised by changing the equation in Clause 10.
© ISO 2006 – All rights reserved iii
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INTERNATIONAL STANDARD ISO 6885:2006(E)
Animal and vegetable fats and oils — Determination of
anisidine value
1 Scope
This International Standard specifies a method for the determination of the anisidine value in animal and
vegetable fats and oils. This is a measure of the amount of aldehydes present (principally α,β-unsaturated
aldehydes).
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
anisidine value
one hundred times the increase in absorbance, measured at a wavelength of 350 nm in a 10 mm cell, of a test
solution when reacted with p-anisidine under the test conditions specified in this International Standard
NOTE The anisidine value has no dimensions, and is calculated and quoted on the basis of 1 g of the test sample in
100 ml of a mixture of solvent and reagent.
4 Principle
A test solution is prepared in isooctane (2,2,4-trimethylpentane). It is reacted with an acetic acid solution of
p-anisidine. The increase in absorbance at 350 nm is measured. The anisidine value is calculated.
5 Reagents
Use only reagents of recognized analytical grade, and water complying with grade 3 of ISO 3696.
5.1 Sodium sulfate (Na SO ), anhydrous.
2 4
5.2 Isooctane (2,2,4-trimethylpentane), having an absorbance not exceeding 0,01 against water in the
wavelength range 300 nm to 380 nm.
© ISO 2006 – All rights reserved 1
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ISO 6885:2006(E)
5.3 4-Methoxyaniline (p-anisidine), anhydrous cream-coloured crystals.
WARNING — p-Anisidine is toxic and care shall be taken to avoid contact with the skin.
Store the p-anisidine in a dark bottle at 0 °C to 4 °C in the dark.
No coloration (grey or pink) shall be observed. If this is present, purify the p-anisidine as follows.
Dissolve 4 g of p-anisidine in 1
...
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