EN ISO 6883:2017

Animal and vegetable fats and oils - Determination of conventional mass per volume (litre weight in air) (ISO 6883:2017)

ISO 6883:2017 specifies a method for the determination of the conventional mass per volume ("litre weight in air") of animal and vegetable fats and oils (hereinafter referred to as fats) in order to convert volume to mass or mass to volume.
The procedure is applicable to fats only when they are in a liquid state. Milk and milk products (or fat coming from milk and milk products) are excluded from the scope of this document.
NOTE          The determination of conventional mass per volume (litre weight in air) using the oscillating U-tube method can be found in ISO 18301.

Tierische und pflanzliche Fette und Öle - Bestimmung der konventionellen volumenbezogenen Masse (Litergewicht in Luft) (ISO 6883:2017)

Corps gras d'origines animale et végétale - Détermination de la masse volumique conventionnelle (poids du litre dans l'air) (ISO 6883:2017)

ISO 6883:2017 spécifie une méthode de détermination de la masse volumique conventionnelle («poids du litre dans l'air») des corps gras d'origines animale et végétale (appelés corps gras dans la suite du texte) afin de convertir le volume en masse et inversement.
Le mode opératoire s'applique aux corps gras uniquement lorsqu'ils sont à l'état liquide. 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.
NOTE          La détermination de la masse volumique conventionnelle (poids du litre dans l'air) à l'aide de la méthode du tube en U oscillant peut être trouvée dans l'ISO 18301.

Živalske in rastlinske maščobe in olja - Določanje dogovorjene mase na enoto prostornine (masa litra v zraku) (ISO 6883:2017)

Ta dokument določa metodo za določevanje dogovorjene mase na enoto prostornine (»masa litra v zraku«) v živalskih in rastlinskih maščobah in oljih (v nadaljnjem besedilu: maščobe), da se omogoči pretvorbo prostornine v maso ali mase v prostornino.
Postopek se uporablja samo za maščobe v tekočem stanju. Mleko in mlečni izdelki (ali maščoba iz mleka in mlečnih izdelkov) niso zajeti v tem dokumentu.
OPOMBA: Postopek določevanja dogovorjene mase na enoto prostornine (»masa litra v zraku«) z metodo z oscilirajočo U-cevjo je naveden v standardu ISO 18301.

General Information

• Status: Published
• Publication Date: 14-Feb-2017
• Withdrawal Date: 30-Aug-2017
• ICS: 67.200.10 - Animal and vegetable fats and oils
• 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-Feb-2017
• Completion Date: 15-Feb-2017
• Ref Project: SIST EN ISO 6883:2017 - Animal and vegetable fats and oils - Determination of conventional mass per volume (litre weight in air) (ISO 6883:2017)

Relations

• Replaces: EN ISO 6883:2014 - Animal and vegetable fats and oils - Determination of conventional mass per volume (litre weight in air) (ISO 6883:2007)
• Effective Date: 22-Feb-2017

Overview

EN ISO 6883:2017 - “Animal and vegetable fats and oils - Determination of conventional mass per volume (litre weight in air)” - specifies a laboratory method to determine the conventional mass per volume (also called litre weight in air) of animal and vegetable fats and oils when they are in a liquid state. The method enables reliable volume-to-mass or mass-to-volume conversion for fats used in trade, quality control and analytical reporting. Milk and milk‑derived fats are explicitly excluded.

Key topics and technical requirements

• Scope and principle
  • Measures the mass of a known volume of fat in a calibrated pyknometer at a specified temperature to obtain the litre weight (kg·L⁻¹).
  • Applicable only to fats in the liquid state; excludes milk and milk products.
• Apparatus
  • Use calibrated pyknometers (preferred: Jaulmes type with thermometer; alternative: Gay‑Lussac type per ISO 3507).
  • Maintain controlled water bath with ±0.1 °C stability and calibrated thermometer.
• Calibration and measurement
  • Pyknometer calibration procedure described; calibration at 40 °C if glass expansion coefficient is known, otherwise at 20 °C and 60 °C.
  • Calibration frequency: at least once per year (soda glass pyknometers: at least every 3 months).
  • Test sample preparation per ISO 661 (do not filter or dry) and avoid air bubbles.
• Procedure and results
  • Determination temperature must prevent crystallisation of fat.
  • Results expressed as conventional mass per volume; calculation formulas and expression rules provided.
• Quality and precision
  • Precision data, repeatability and reproducibility information provided based on interlaboratory tests (see normative precision section and Annex A).

Applications and users

• Practical uses:
  • Converting invoiced volumes to mass for trading edible oils, vegetable fats and animal fats.
  • Product specification, labelling and inventory control where volume/mass interchange is required.
  • Quality control and routine laboratory analysis in oil processing and food manufacturing.
• Typical users:
  • Analytical laboratories, oilseed processors, edible‑oil refiners, food manufacturers, regulatory bodies and standards laboratories.

Related standards

• ISO 18301 - oscillating U‑tube method for conventional mass per volume (alternate technique)
• ISO 661 - preparation of test sample for animal and vegetable fats and oils
• ISO 3507 - pyknometer (Gay‑Lussac) specifications
• ISO 5555 - recommended sampling methods

Keywords: EN ISO 6883:2017, conventional mass per volume, litre weight in air, animal and vegetable fats and oils, pyknometer calibration, volume-to-mass conversion, laboratory method, density measurement.

Standards Content (Sample)

SLOVENSKI STANDARD
01-maj-2017
1DGRPHãþD
SIST EN ISO 6883:2014
äLYDOVNHLQUDVWOLQVNHPDãþREHLQROMD'RORþDQMHGRJRYRUMHQHPDVHQDHQRWR
SURVWRUQLQHPDVDOLWUDY]UDNX,62
Animal and vegetable fats and oils - Determination of conventional mass per volume
(litre weight in air) (ISO 6883:2017)
Tierische und pflanzliche Fette und Öle - Bestimmung der konventionellen
volumenbezogenen Masse (Litergewicht in Luft) (ISO 6883:2017)
Corps gras d'origines animale et végétale - Détermination de la masse volumique
conventionnelle (poids du litre dans l'air) (ISO 6883:2017)
Ta slovenski standard je istoveten z: EN ISO 6883:2017
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 6883
EUROPEAN STANDARD
NORME EUROPÉENNE
February 2017
EUROPÄISCHE NORM
ICS 67.200.10 Supersedes EN ISO 6883:2014
English Version
Animal and vegetable fats and oils - Determination of
conventional mass per volume (litre weight in air) (ISO
6883:2017)
Corps gras d'origines animale et végétale - Tierische und pflanzliche Fette und Öle - Bestimmung
Détermination de la masse volumique conventionnelle der konventionellen volumenbezogenen Masse
(poids du litre dans l'air) (ISO 6883:2017) (Litergewicht in Luft) (ISO 6883:2017)
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 6883:2017 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
This document (EN ISO 6883:2017) 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 6883:2014.
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 6883:2017 has been approved by CEN as EN ISO 6883:2017 without any modification.
INTERNATIONAL ISO
STANDARD 6883
Fifth edition
2017-02
Animal and vegetable fats and oils —
Determination of conventional mass
per volume (litre weight in air)
Corps gras d’origines animale et végétale — Détermination de la
masse volumique conventionnelle (poids du litre dans l’air)
Reference number
ISO 6883:2017(E)
©
ISO 2017
ISO 6883:2017(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
or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior
written permission. Permission can be requested from either ISO at the address below or ISO’s member body in the country of
the requester.
ISO copyright office
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CH-1214 Vernier, Geneva, Switzerland
Tel. [phone]
Fax [phone]
[e-mail]
www.iso.org
ii © ISO 2017 – All rights reserved

ISO 6883:2017(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 1
5 Apparatus . 1
6 Sampling . 3
7 Preparation of test sample . 3
8 Procedure. 3
8.1 Calibration of pyknometer . 3
8.2 Determination . 3
8.2.1 General. 3
8.2.2 Fats which are solid at ambient temperatures . 4
8.2.3 Using the Jaulmes pyknometer . 4
8.2.4 Using the Gay-Lussac pyknometer . 4
9 Expression of results . 5
9.1 Calculation of the volume of the pyknometer . 5
9.2 Calculation of the conventional mass per volume . 6
10 Precision . 7
10.1 Interlaboratory tests . 7
10.2 Repeatability . 7
10.3 Reproducibility . 7
11 Test report . 7
Annex A (informative) Results of interlaboratory tests. 9
Bibliography .11
ISO 6883:2017(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.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www. iso. org/d irectives).
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. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www. iso. org/p atents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation on the meaning of ISO specific terms and expressions related to conformity assessment,
as well as information about ISO’s adherence to the World Trade Organization (WTO) principles in the
Technical Barriers to Trade (TBT) see the following URL: ww w .iso. org/iso / foreword. html.
This document was prepared by Technical Committee ISO/TC 34, Food products, Subcommittee SC 11,
Animal and vegetable fats and oils.
This fifth edition cancels and replaces the fourth edition (ISO 6883:2007), of which it constitutes a
minor revision to exclude its applicability for fat coming from milk and milk products and to include
further precision data.
iv © ISO 2017 – All rights reserved

INTERNATIONAL STANDARD ISO 6883:2017(E)
Animal and vegetable fats and oils — Determination of
conventional mass per volume (litre weight in air)
1 Scope
This document specifies a method for the determination of the conventional mass per volume (“litre
weight in air”) of animal and vegetable fats and oils (hereinafter referred to as fats) in order to convert
volume to mass or mass to volume.
The procedure is applicable to fats only when they are in a liquid state. Milk and milk products (or fat
coming from milk and milk products) are excluded from the scope of this document.
NOTE The determination of conventional mass per volume (litre weight in air) using the oscillating U-tube
method can be found in ISO 18301.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements 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
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— IEC Electropedia: available at http:// www .electropedia .org/
— ISO Online browsing platform: available at https:// www .iso .org/ obp/
3.1
conventional mass per volume
litre weight in air
quotient of the mass in air of fat to its volume at a given temperature
Note 1 to entry: It is expressed in kilograms per litre (numerically equal to grams per millilitre).
4 Principle
The mass of a volume of liquid fat in a calibrated pyknometer is measured at a specified temperature.
5 Apparatus
Usual laboratory apparatus and, in particular, the following.
5.1 Water bath, capable of being maintained to within 0,1 °C of the temperatures chosen for the
calibration and determination.
It should be fitted with a calibrated thermometer, graduated in divisions of 0,1 °C covering the relevant
temperature range.
ISO 6883:2017(E)
5.2 Pyknometer (Jaulmes), of capacity 50 ml, with side-arm.
It should be fitted by means of conical joints with a calibrated thermometer graduated in divisions of
0,1 °C and with a cap perforated at the top for the side-arm (see Figure 1).
The pyknometer should preferably be made of borosilicate glass, but if this is not available, then one
made of soda glass may be used.
NOTE The cap is only essential if the determination is carried out at a temperature below ambient.
Alternatively, the Type 3 (Gay-Lussac) pyknometer (see Figure 2) specified in ISO 3507 may be used;
however, the use of a pyknometer with thermometer is preferred.
Figure 1 — Jaulmes pyknometer
Figure 2 — Gay-Lussac pyknometer
2 © ISO 2017 – All rights reserved

ISO 6883:2017(E)
6 Sampling
A representative sample should have been sent to the
...