SIST EN ISO 663:2017

Animal and vegetable fats and oils - Determination of insoluble impurities content (ISO 663:2017)

ISO 663:2017 specifies a method for the determination of the insoluble impurities content of animal and vegetable fats and oils.
If it is not desired to include soaps (particularly calcium soaps) or oxidized fatty acids in the insoluble impurities content, it is necessary to use a different solvent and procedure. In this case, an agreement is to be reached between the parties concerned.
Milk and milk products (or fat coming from milk and milk products) are excluded from the scope of this document.

Tierische und pflanzliche Fette und Öle - Bestimmung des Anteils an unlöslichen Verunreinigungen (ISO 663:2017)

Dieses Dokument legt ein Verfahren zur Bestimmung des Anteils an unlöslichen Verunreinigungen in tierischen und pflanzlichen Fetten und Ölen fest.
Falls es unerwünscht ist, Seifen (besonders Calciumseifen) oder oxidierte Fettsäuren dem Anteil an unlös-lichen Verunreinigungen zuzurechnen, ist es notwendig, ein anderes Lösemittel und Verfahren anzuwenden. In diesem Fall sollte das Verfahren zwischen den Beteiligten vereinbart werden.
Milch und Milcherzeugnisse (oder Fett aus Milch und Milcherzeugnissen) sind vom Anwendungsbereich dieses Dokumentes ausgenommen.

Corps gras d'origines animale et végétale - Détermination de la teneur en impuretés insolubles (ISO 663:2017)

ISO 663:2017 spécifie une méthode de détermination de la teneur en impuretés insolubles des corps gras d'origines animale et végétale.
S'il est préférable de ne pas inclure les savons (en particulier les savons de calcium) ou les acides gras oxydés dans la teneur en impuretés insolubles, l'utilisation d'un solvant et d'un mode opératoire différents est nécessaire. Dans ce cas, un accord est à convenir entre les parties concernées.
Le lait et les produits laitiers (ou les corps gras issus du lait et des produits laitiers) sont exclus du domaine d'application du présent document.

Rastlinske in živalske maščobe in olja - Določevanje netopnih nečistoč (ISO 663:2017)

Ta dokument določa metodo za določevanje vsebnosti netopnih nečistoč živalskih in rastlinskih masti in olj.
Za izključitev mil (zlasti mil na osnovi kalcija) ali oksidiranih maščobnih kislin iz vsebnosti netopnih nečistoč je treba uporabiti drugo topilo in postopek. V tem primeru morajo zadevne stranke skleniti dogovor.
Mleko in mlečni izdelki (ali maščoba iz mleka in mlečnih izdelkov) niso zajeti v tem dokumentu.

General Information

• Status: Published
• Public Enquiry End Date: 19-Dec-2016
• Publication Date: 06-Apr-2017
• ICS: 67.200.10 - Animal and vegetable fats and oils
• Technical Committee: KŽP - Agricultural food products
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 14-Mar-2017
• Due Date: 19-May-2017
• Completion Date: 07-Apr-2017
• Ref Project: EN ISO 663:2017 - Animal and vegetable fats and oils - Determination of insoluble impurities content (ISO 663:2017)

Relations

• Replaces: SIST EN ISO 663:2009 - Animal and vegetable fats and oils - Determination of insoluble impurities content (ISO 663:2007)
• Effective Date: 01-May-2017

Overview

EN ISO 663:2017 - "Animal and vegetable fats and oils - Determination of insoluble impurities content" - is a CEN-endorsed adoption of ISO 663:2017. The standard defines a laboratory method to quantify insoluble impurities in animal and vegetable fats and oils using solvent extraction, filtration and gravimetric weighing. It excludes milk and milk‑derived fats, and notes that if soaps (e.g., calcium soaps) or oxidized fatty acids should be excluded from the result, an alternative solvent/procedure must be agreed between parties.

Key topics and requirements

• Scope: Applies to animal and vegetable fats and oils (milk fats excluded).
• Principle: Dissolve a weighed test portion in excess n‑hexane or light petroleum, filter the insoluble residue, dry at 103 °C and weigh the residue to calculate percentage insoluble impurities.
• Test portion & reagents: Typical test portion ~20 g; solvent options are n‑hexane or light petroleum (30–60 °C distillation range, residue ≤ 0.002 g/100 ml). Kieselgur (purified, calcined) is specified for coating crucibles when analysing acid oils.
• Apparatus: Analytical balance (±0.001 g), oven (103 °C ±2 °C), desiccator, ashless filter paper or glass‑fibre filter, or a glass filter crucible (grade P16, 10–16 µm).
• Procedure highlights: Add ~200 ml solvent, stand ~30 min, filter, rinse and evaporate solvent, dry filter/crucible at 103 °C, cool in desiccator and weigh. For organic impurity content, ignite the filter and subtract ash.
• Precision & reporting: The standard includes clauses on repeatability, reproducibility and results of interlaboratory tests, and specifies required information for test reports.
• Safety: Handling of flammable/dangerous solvents is emphasized; use recognized analytical‑grade reagents.

Applications and users

EN ISO 663:2017 is used for:

• Quality control and acceptance testing in edible oil and fat production lines.
• Routine laboratory testing by food testing labs, refineries, oilseed processors and trade laboratories.
• Regulatory compliance, specification verification and dispute resolution between suppliers and buyers (note the requirement to agree if excluding soaps/oxidized fatty acids).
• Research labs assessing oil purification and refining efficiency (e.g., residue removal).

Typical users: laboratory analysts, quality managers in edible oil/animal fat industries, food safety authorities, standards and compliance officers.

Related standards

• ISO 661 - Preparation of test sample (referenced normative).
• ISO 5555 - Recommended sampling methods (sampling not part of ISO 663).
• Other ISO/CEN methods for fats and oils quality control (see the document bibliography).

Keywords: EN ISO 663:2017, insoluble impurities, animal and vegetable fats and oils, n‑hexane, light petroleum, filter crucible, kieselgur, laboratory method, quality control.

Standards Content (Sample)

SLOVENSKI STANDARD
01-maj-2017
1DGRPHãþD
SIST EN ISO 663:2009
5DVWOLQVNHLQåLYDOVNHPDãþREHLQROMD'RORþHYDQMHQHWRSQLKQHþLVWRþ,62

Animal and vegetable fats and oils - Determination of insoluble impurities content (ISO
663:2017)
Tierische und pflanzliche Fette und Öle - Bestimmung des Anteils an unlöslichen
Verunreinigungen (ISO 663:2017)
Corps gras d'origines animale et végétale - Détermination de la teneur en impuretés
insolubles (ISO 663:2017)
Ta slovenski standard je istoveten z: EN ISO 663:2017
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.

EN ISO 663
EUROPEAN STANDARD
NORME EUROPÉENNE
February 2017
EUROPÄISCHE NORM
ICS 67.200.10 Supersedes EN ISO 663:2008
English Version
Animal and vegetable fats and oils - Determination of
insoluble impurities content (ISO 663:2017)
Corps gras d'origines animale et végétale - Tierische und pflanzliche Fette und Öle - Bestimmung
Détermination de la teneur en impuretés insolubles des Anteils an unlöslichen Verunreinigungen (ISO
(ISO 663:2017) 663:2017)
This European Standard was approved by CEN on 8 February 2017.

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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, 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: Avenue Marnix 17, B-1000 Brussels
© 2017 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 663:2017 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
This document (EN ISO 663:2017) has been prepared by Technical Committee ISO/TC 34 “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 August 2017, and conflicting national standards shall
be withdrawn at the latest by August 2017.
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 663:2008.
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, Former Yugoslav Republic of Macedonia,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta,
Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.
Endorsement notice
The text of ISO 663:2017 has been approved by CEN as EN ISO 663:2017 without any modification.
INTERNATIONAL ISO
STANDARD 663
Fifth edition
2017-02
Animal and vegetable fats and
oils — Determination of insoluble
impurities content
Corps gras d’origines animale et végétale — Détermination de la
teneur en impuretés insolubles
Reference number
ISO 663:2017(E)
©
ISO 2017
ISO 663:2017(E)
© ISO 2017, Published in Switzerland
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form
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ii © ISO 2017 – All rights reserved

ISO 663:2017(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative reference . 1
3 Terms and definitions . 1
4 Principle . 1
5 Reagents . 1
6 Apparatus . 2
7 Sampling . 2
8 Preparation of test sample . 2
9 Procedure. 2
9.1 Test portion . 2
9.2 Determination . 3
10 Expression of results . 4
11 Precision . 4
11.1 Interlaboratory tests . 4
11.2 Repeatability . 4
11.3 Reproducibility . 4
12 Test report . 4
Annex A (informative) Results of interlaboratory tests. 5
Bibliography . 6
ISO 663:2017(E)
Foreword
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Attention is drawn to the possibility that some of the elements of this document may be the subject of
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