Animal and vegetable fats and oils - Preparation of test sample (ISO 661:2003)

ISO 661:2003 specifies procedures for the preparation of a test sample from a laboratory sample of animal or vegetable fats and oils for the purpose of analysis.
The method is not applicable to emulsified fats such as butter, margarine or mayonnaise.

Tierische und pflanzliche Fette und Öle - Vorbereitung der Untersuchungsprobe (ISO 661:2003)

Diese Internationale Norm legt Verfahren für die Vorbereitung einer Untersuchungsprobe aus einer Laboratoriumsprobe von tierischen und pflanzlichen Fetten und Ölen zur Durchführung von Analysen fest.
Das Verfahren ist nicht für emulgierte Fette wie Butter, Margarine oder Mayonnaise anwendbar.

Corps gras d'origines animale et végétale - Préparation de l'échantillon pour essai (ISO 661:2003)

L'ISO 661:2003 spécifie les divers modes de préparation d'un échantillon pour essai à partir d'un échantillon pour laboratoire d'un corps gras d'origine animale ou végétale, en vue de l'analyse.
Cette méthode n'est pas applicable aux corps gras émulsionnés du type beurre, margarine ou mayonnaise.

Rastlinske in živalske maščobe in olja – Priprava preskusnih vzorcev (ISO 661:2003)

General Information

Status
Published
Publication Date
16-Aug-2005
Withdrawal Date
27-Feb-2006
Current Stage
6060 - Definitive text made available (DAV) - Publishing
Start Date
17-Aug-2005
Due Date
03-Jul-2006
Completion Date
17-Aug-2005

Relations

Effective Date
28-Jan-2026
Effective Date
28-Jan-2026
Effective Date
28-Jan-2026
Effective Date
28-Jan-2026
Effective Date
28-Jan-2026
Effective Date
28-Jan-2026
Effective Date
28-Jan-2026
Effective Date
28-Jan-2026
Effective Date
28-Jan-2026
Effective Date
28-Jan-2026
Effective Date
28-Jan-2026
Effective Date
28-Jan-2026
Effective Date
22-Dec-2008

Overview

EN ISO 661:2005 titled Animal and vegetable fats and oils - Preparation of test sample (ISO 661:2003) is a European and international standard developed by ISO and adopted by CEN. It specifies clear and reliable procedures for preparing test samples from laboratory samples of animal and vegetable fats and oils. The standard ensures that samples are accurately prepared for subsequent chemical and physical analysis.

This standard is essential for laboratories and industries involved in the quality control, research, and analysis of fats and oils. It excludes emulsified fats such as butter, margarine, and mayonnaise, focusing only on pure fats and oils in liquid or solid states.

Key Topics

  • Sample Homogenization
    Guidelines for achieving homogeneity in liquid and solid fat or oil samples by shaking or gentle warming to ensure accurate, representative testing.

  • Heating and Temperature Control
    Procedures for appropriately heating fats and oils to melting points or specific temperatures (e.g., 50 °C) during sample preparation. Emphasis on avoiding overheating to prevent oxidation or polymerization.

  • Filtration Methods
    Instructions on filtering samples using heated filter funnels or ovens to remove insoluble particles, ensuring samples are clear before analysis.

  • Moisture Removal with Drying Agents
    Use of anhydrous sodium sulfate as a desiccant to remove moisture, vital for tests sensitive to water content. Recommendations include drying under nitrogen atmospheres or vacuum to prevent sample degradation.

  • Avoidance of Oxidation
    Precautions throughout sample preparation to minimize oxidation, preserving sample integrity for reliable measurement outcomes.

  • Sample Storage
    Guidance on storing prepared test samples under conditions that maintain their stability until analysis.

Applications

  • Laboratory Testing of Fats and Oils
    Enables standardized preparation of samples prior to various analytical tests such as iodine value determination, moisture content measurement, and impurity quantification.

  • Food Quality Control
    Used by the food industry to assure compliance with quality and safety standards for edible fats and oils.

  • Research and Development
    Supports consistent sample preparation, facilitating reproducible results in R&D of fat and oil products.

  • Regulatory Compliance
    Assists regulatory bodies in enforcing standardized methods for analyzing fat and oil samples across multiple countries.

Related Standards

  • ISO 660 – Animal and vegetable fats and oils -- Determination of acid value and acidity
  • ISO 3596 – Animal and vegetable fats and oils -- Sampling
  • ISO 3960 – Animal and vegetable fats and oils -- Determination of peroxide value
  • ISO 6798 – Animal and vegetable fats and oils -- Determination of iodine value
  • CEN/TC 307 – Technical Committee on oilseeds, vegetable and animal fats and oils, and their by-products analysis

By adhering to EN ISO 661:2005, laboratories and industries ensure precise and reproducible preparation of fat and oil test samples, contributing directly to accurate analytical results and enhanced quality assurance in food and related sectors.

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Frequently Asked Questions

EN ISO 661:2005 is a standard published by the European Committee for Standardization (CEN). Its full title is "Animal and vegetable fats and oils - Preparation of test sample (ISO 661:2003)". This standard covers: ISO 661:2003 specifies procedures for the preparation of a test sample from a laboratory sample of animal or vegetable fats and oils for the purpose of analysis. The method is not applicable to emulsified fats such as butter, margarine or mayonnaise.

ISO 661:2003 specifies procedures for the preparation of a test sample from a laboratory sample of animal or vegetable fats and oils for the purpose of analysis. The method is not applicable to emulsified fats such as butter, margarine or mayonnaise.

EN ISO 661:2005 is classified under the following ICS (International Classification for Standards) categories: 67.200.10 - Animal and vegetable fats and oils. The ICS classification helps identify the subject area and facilitates finding related standards.

EN ISO 661:2005 has the following relationships with other standards: It is inter standard links to EN 14104:2003, EN 16995:2017, EN ISO 6974-6:2005, EN 14104:2021, EN ISO 6144:2006, EN 14106:2003, EN ISO 6145-9:2010, EN ISO 6145-1:2008, EN 14107:2003, EN ISO 6145-7:2010, EN ISO 6141:2015, EN 14111:2022, EN ISO 661:2005/AC:2006. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.

EN ISO 661:2005 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.

Standards Content (Sample)


SLOVENSKI STANDARD
01-december-2005
1DGRPHãþD
SIST EN ISO 661:1996
5DVWOLQVNHLQåLYDOVNHPDãþREHLQROMD±3ULSUDYDSUHVNXVQLKY]RUFHY ,62

Animal and vegetable fats and oils - Preparation of test sample (ISO 661:2003)
Tierische und pflanzliche Fette und Öle - Vorbereitung der Untersuchungsprobe (ISO
661:2003)
Corps gras d'origines animale et végétale - Préparation de l'échantillon pour essai (ISO
661:2003)
Ta slovenski standard je istoveten z: EN ISO 661:2005
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 661
NORME EUROPÉENNE
EUROPÄISCHE NORM
August 2005
ICS 67.200.10
English Version
Animal and vegetable fats and oils - Preparation of test sample
(ISO 661:2003)
Corps gras d'origines animale et végétale - Préparation de Tierische und pflanzliche Fette und Öle - Vorbereitung der
l'échantillon pour essai (ISO 661:2003) Untersuchungsprobe (ISO 661:2003)
This European Standard was approved by CEN on 28 July 2005.
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 Central Secretariat 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 Central Secretariat has the same status as the official
versions.
CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,
Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, 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
© 2005 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 661:2005: E
worldwide for CEN national Members.

Foreword
The text of ISO 661:2003 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 661:2005 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 2006, and conflicting national
standards shall be withdrawn at the latest by February 2006.

According to the CEN/CENELEC Internal Regulations, the national standards organizations of
the following countries are bound to implement this European Standard: Austria, Belgium,
Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary,
Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland,
Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.

Endorsement notice
The text of ISO 661:2003 has been approved by CEN as EN ISO 661:2005 without any
modifications.
INTERNATIONAL ISO
STANDARD 661
Third edition
2003-05-15
Animal and vegetable fats and oils —
Preparation of test sample
Corps gras d'origines animale et végétale — Préparation de
l'échantillon pour essai
Reference number
ISO 661:2003(E)
©
ISO 2003
ISO 661:2003(E)
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ISO 661:2003(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies
(ISO member bodies). The work of preparing In
...

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