ISO 3960:1977

Animal and vegetable oils and fats — Determination of peroxide value

Corps gras d'origines animale et végétale — Détermination de l'indice de peroxyde

Rastlinske in živalske maščobe in olja - Določanje peroksidnega števila

General Information

• Status: Withdrawn
• Publication Date: 31-May-1977
• Withdrawal Date: 31-May-1977
• ICS: 67.200.10 - Animal and vegetable fats and oils
• Technical Committee: ISO/TC 34/SC 11 - Animal and vegetable fats and oils
• Drafting Committee: ISO/TC 34/SC 11 - Animal and vegetable fats and oils
• Current Stage: 9599 - Withdrawal of International Standard
• Completion Date: 13-Aug-1998
• Ref Project: SIST ISO 3960:1995 - Animal and vegetable oils and fats -- Determination of peroxide value

Relations

• Revised: ISO 3960:1998 - Animal and vegetable fats and oils — Determination of peroxide value
• Effective Date: 15-Apr-2008
• Revised: SIST ISO 3960:1998 - Animal and vegetable fats and oils -- Determination of peroxide value
• Effective Date: 12-May-2008

Standards Content (Sample)

INTERNATIONAL STANDARD
3960
INTERNATIONAL ORGANIZATION FOR STANDARDIZATION .MEWlYHAPOnHAR OPïAHH3AUHR II0 CTAHnAPTM3AU~.ORGANlSATlON INTERNATIONALE DE NORMALISATION
i IO
Animal and vegetable oils and fats - Determination of
peroxide value
Corps gras d'origines animale et végétale - Détermination de l'indice de peroxyde
First edition - 1977-06-01
~~~~ ~
UDC 664.3 : 543.852.46
Ref. No. IS0 3960-1977 (E)
r-
r-
m
Descriptors : fats, oils, chemical analysis, determination of content, peroxide number.
Price based on 3 pages

---------------------- Page: 1 ----------------------
FOREWORD
IS0 (the International Organization for Standardization) is a worldwide federation
of national standards institutes (IS0 member bodies). The work of developing
International Standards is carried out through IS0 technical committees. Every
member body interested in a subject for which a technical committee has been set
up 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.
Draft International Standards adopted by the technical committees are circulated
to the member bodiés for approval before their acceptance as International
Standards by the IS0 Council.
International Standard IS0 3960 was developed by Technical Committee
ISO/TC 34, Agricultural food products, and was circulated to the member bodies
in October 1975.
It has been approved by the member bodies of the following countries :
Australia
Ghana Portugal
Austria Hungary Romania
Belgium India South Africa, Rep. of
Canada Iran Thailand
Chile
Korea, Rep. of Turkey
Czechoslovakia Mexico United Kingdom
France New Zealand Yugoslavia
Germany Poland
No member body expressed disapproval of the document.
This International Standard has also been approved by the International Union of
Pure and Applied Chemistry (IUPAC).
0 International Organization for Standardization, 1977
Printed in Switzerland

---------------------- Page: 2 ----------------------
IS0 3960-1977 (E)
INTERNATIONAL STANDARD
Animal and vegetable oils and fats - Determination of
peroxide value
1 SCOPE AND FIELD OF APPLICATION
5.3 Potassium iodide, saturated aqueous solution, recently
prepared and free from free iodine and from iodates.
This International Standard specifies a method for the
determination of the peroxide value of animal and vegetable NOTE - Make sure the solution remains saturated as indicated by
the presence of undissolved crystals. Store in the dark. Test daily by
oils and fats.
adding 2 drops of starch solution 15.5) to 0.5 ml of the potassium
iodide solution in 30 ml of acetic acid-chloroform (3:2) solution. If
a blue colour is formed which requires more than 1 drop of 0.01 N
2 REFERENCE
sodium thiosulphate solution to discharge, discard the iodide
solution and prepare a fresh solution.
IS0 . . . , Animal and vegetable oils .and fats - Sampling. 1)
5.4 Sodium thiosulphate, 0.01 N or 0,002 N standard
3 DEFINITION
volumetric solution, standardized just before use.
peroxide value : The quantity of those substances in the
5.5 Starch solution.
sample, expressed in terms of milliequivalents of active
oxygen per kilogram, which oxidize potassium iodide under
Mix 5 g of soluble starch in 30 mi of water, add this mixture
the operating conditions described.
to 1 O00 mi of boiling water and leave boiling for 3 min.
4 PRINCIPLE
6 APPARATUS
Treatment of a test portion, in solution in acetic acid and
chloroform, by a solution of potassium iodide. Titration of
All the equipment used shall be free from reducing or
the liberated iodine with standard volumetric sodium
oxidizing substances.
thiosulphate solution.
NOTE - Do not grease ground glass surfaces.
5 REAGENTS
Usual laboratory equipment and the following items :
All reagents shall be of analytical quality. The water used
6.1 Flasks, with ground necks and ground glass stoppers,
shall be distilled water or water of at least equivalent purity.
of about 250 ml capacity, dri
...

SLOVENSKI STANDARD
SIST ISO 3960:1995
01-december-1995
5DVWOLQVNHLQåLYDOVNHPDãþREHLQROMD'RORþDQMHSHURNVLGQHJDãWHYLOD
Animal and vegetable oils and fats -- Determination of peroxide value
Corps gras d'origines animale et végétale -- Détermination de l'indice de peroxyde
Ta slovenski standard je istoveten z: ISO 3960:1977
ICS:
67.200.10 5DVWOLQVNHLQåLYDOVNH Animal and vegetable fats
PDãþREHLQROMD and oils
SIST ISO 3960:1995 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST ISO 3960:1995

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SIST ISO 3960:1995
INTERNATIONAL STANDARD
3960
INTERNATIONAL ORGANIZATION FOR STANDARDIZATION .MEWlYHAPOnHAR OPïAHH3AUHR II0 CTAHnAPTM3AU~.ORGANlSATlON INTERNATIONALE DE NORMALISATION
i IO
Animal and vegetable oils and fats - Determination of
peroxide value
Corps gras d'origines animale et végétale - Détermination de l'indice de peroxyde
First edition - 1977-06-01
~~~~ ~
UDC 664.3 : 543.852.46
Ref. No. IS0 3960-1977 (E)
r-
r-
m
Descriptors : fats, oils, chemical analysis, determination of content, peroxide number.
Price based on 3 pages

---------------------- Page: 3 ----------------------

SIST ISO 3960:1995
FOREWORD
IS0 (the International Organization for Standardization) is a worldwide federation
of national standards institutes (IS0 member bodies). The work of developing
International Standards is carried out through IS0 technical committees. Every
member body interested in a subject for which a technical committee has been set
up 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.
Draft International Standards adopted by the technical committees are circulated
to the member bodiés for approval before their acceptance as International
Standards by the IS0 Council.
International Standard IS0 3960 was developed by Technical Committee
ISO/TC 34, Agricultural food products, and was circulated to the member bodies
in October 1975.
It has been approved by the member bodies of the following countries :
Australia
Ghana Portugal
Austria Hungary Romania
Belgium India South Africa, Rep. of
Canada Iran Thailand
Chile
Korea, Rep. of Turkey
Czechoslovakia Mexico United Kingdom
France New Zealand Yugoslavia
Germany Poland
No member body expressed disapproval of the document.
This International Standard has also been approved by the International Union of
Pure and Applied Chemistry (IUPAC).
0 International Organization for Standardization, 1977
Printed in Switzerland

---------------------- Page: 4 ----------------------

SIST ISO 3960:1995
IS0 3960-1977 (E)
INTERNATIONAL STANDARD
Animal and vegetable oils and fats - Determination of
peroxide value
1 SCOPE AND FIELD OF APPLICATION
5.3 Potassium iodide, saturated aqueous solution, recently
prepared and free from free iodine and from iodates.
This International Standard specifies a method for the
determination of the peroxide value of animal and vegetable NOTE - Make sure the solution remains saturated as indicated by
the presence of undissolved crystals. Store in the dark. Test daily by
oils and fats.
adding 2 drops of starch solution 15.5) to 0.5 ml of the potassium
iodide solution in 30 ml of acetic acid-chloroform (3:2) solution. If
a blue colour is formed which requires more than 1 drop of 0.01 N
2 REFERENCE
sodium thiosulphate solution to discharge, discard the iodide
solution and prepare a fresh solution.
IS0 . . . , Animal and vegetable oils .and fats - Sampling. 1)
5.4 Sodium thiosulphate, 0.01 N or 0,002 N standard
3 DEFINITION
volumetric solution, standardized just before use.
peroxide value : The quantity of those substances in the
5.5 Starch solution.
sample, expressed in terms of milliequivalents of active
oxygen per kilogram, which oxidize potassium iodide under
Mix 5 g of soluble starch in 30 mi of water, add this mixture
the operating conditions described.
to 1 O00 mi of boiling water and leave boiling for 3 min.
4 PRINCIPLE
6 APPARATUS
Treatment of a test portion, in solution in acetic acid and
chloroform, by a solution of potassium iodide. Titration of
All the equipment used shall be free from reducing or
the liberated iodine with standard volumetric sodium
oxidizing substanc
...

NORME INTERNATIONALE 3960
INTERNATIONAL ORGANIZATION FOR STANDARDIZATION MEXnYHAPOnHAR OPïAHH3AUCIR il0 CTAHLIAPTM3AUHH.ORGANlSATlON INTERNATIONALE DE NORMALISATION
Corps gras d'origines animale et végétale - Détermination
I)
de l'indice de peroxyde
Animal and vegetable oils and fats - Determination of peroxide value
Première édition - 1977-06-01
-
U
-
CDU 664.3 : 543.852.46 Réf. no : IS0 3960-1977 (F)
b
I-
Descripteurs : corps gras, huile, analyse chimique, dosage, indice de peroxyde.
zi
R
a
Prix basé sur 3 pages

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AVANT-PROPOS
L'ISO (Organisation internationale de normalisation) est une fédération mondiale
d'organismes nationaux de normalisation (comités membresde VISO). L'élaboration
des Normes internationales est confiée aux comités techniques de I'ISO. Chaque
a le droit de faire partiedu comité technique
comité membre intéressé par une étude
correspondant. Les organisations internationales, gouvernementales et non
gouvernementales, en liaison avec I'ISO, participent également aux travaux.
Les projets de Normes internationales adoptés par les comités techniques sont
soumis aux comités membres pour approbation, avant leur acceptation comme
Normes internationales par le Conseil de I'ISO.
La Norme internationale IS0 3960 a été élaborée par le comité technique
34, Produits agricoles alimentaires, et a été soumise aux comités membres
ISO/TC
en octobre 1975.
Les comités membres des pays suivants l'ont approuvée :
Afrique du Sud, Rép. d' France Portugal
Allemagne Ghana Roumanie
Australie Hongrie Royaume-Uni
Autriche Inde Tchécoslovaquie
Belgique Iran Thaïlande
Mexique Turquie
Canada
Chili Nouvelle-Zélande Yougoslavie
Corée, Rép. de Pologne
Aucun comité membre ne l'a désapprouvée.
Cette Norme internationale a également été approuvée par l'Union internationale
de chimie pure et appliquée (IUPACJ.
O Organisation internationale de normalisation, 1977 O
I mDrimé en Suisse

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NORME INTERNATIONALE IS0 3960-1977 (FI
Corps gras d'origines animale et végétale - Détermination
de l'indice de peroxyde
1 OBJET ET DOMAINE D'APPLICATION 5.3 Iodure de potassium, solution aqueuse saturée, récem.
ment préparée, exempte d'iode et d'iodates.
La présente Norme internationale spécifie une méthode de
NOTE - S'assurer que la solution reste saturée, ce qui est indiqué
détermination de l'indice de peroxyde des corps gras
par la présence de cristaux non dissous. Conserver à l'obscurité.
0 d'origines animale et végétale.
Vérifier tous les jours par addition de 2 gouttes de l'empois
d'amidon (5.5) à 0,5 ml de la solution d'iodure de potassium dans
30 ml de solution d'acide acétique et de chloroforme (3:2). Si une
2 RÉFÉRENCE
coloration bleue apparaît et demande plus de 1 goutte de solution
de thiosulfate de sodium 0.01 N pour disparaître, rejeter la solution
ISO55)3i Corps gras d'origines animale et kgétale - Échan-
d'iodure de potassium et préparer une nouvelle solution.
tillonnage. 1 )
5.4 Thiosulfate de sodium, solution titrée 0,Ol N ou
3 DÉFINITION
0,002 N, étalonnée immédiatement avant l'emploi.
indice de peroxyde : Quantité de produit présent dans
5.5 Empois d'amidon
l'échantillon, exprimée en milliéquivalents d'oxygène actif
par kilogramme, oxydant l'iodure de potassium dans les
Mélanger 5 g d'amidon soluble avec 30 ml d'eau, ajouter ce
conditions opératoires décrites.
mélange à 1 O00 ml d'eau bouillante, et laisser bouillir
durant 3 min.
4 PRINCIPE
6 APPAREILLAGE
Traitement d'une prise d'essai, en solution dans de l'acide
acétique et du chloroforme, par une solution d'iodure de
Tout le matériel utilisé doit être exempt de substances
potassium. Titrage de l'iode libéré par une solution titrée
réductrices ou oxydantes.
de thiosulfate de sodium.
NOTE - Ne pas utiliser de graisse pour les rodages en verre.
0
5 RÉACTIFS
Matériel courant de laboratoire, et notamment :
Tous les réactifs doivent être de qualité analytique. L'eau
6.1 Flacons, à col rodé, munis de bouchons en verre rodés,
utilisée doit être de l'eau distillée ou de l'eau de pureté au
de capacité environ 250 ml, préalablement séchés et remplis
moins équivalente.
d'un gaz inerte, pur et sec (azote ou, de préférence, dioxyde
Tous les réactifs et l'eau doivent être exempts d'oxygène
de carbone).
dissous.
6.2 Nacelles en verre, de capacité appropriée à la prise
5.1 Chloroforme, privé d'oxygè
...