EN ISO 734-2:2010

SLOVENSKI STANDARD
01-november-2010
1DGRPHãþD
SIST EN ISO 734-2:2009
2EURNLL]ROMQLF'RORþHYDQMHROMDGHO0HWRGDKLWUHHNVWUDNFLMH,62
SRSUDYOMHQDYHU]LMD
Oilseed meals - Determination of oil content - Part 2: Rapid extraction method (ISO 734-
2:2008, corrected version 2009-06-01)
Ölsamenschrote - Bestimmung des Ölgehaltes - Teil 2: Schnellextraktionsverfahren (ISO
734-2:2008, korrigierte Fassung 2009-06-01)
Tourteaux de graines oléagineuses - Détermination de la teneur en huile - Partie 2:
Méthode rapide par extraction (ISO 734-2:2008, version corrigée 2009-06-01)
Ta slovenski standard je istoveten z: EN ISO 734-2:2010
ICS:
67.200.20 Oljnice Oilseeds
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN ISO 734-2
NORME EUROPÉENNE
EUROPÄISCHE NORM
April 2010
ICS 67.200.20 Supersedes EN ISO 734-2:2008
English Version
Oilseed meals - Determination of oil content - Part 2: Rapid
extraction method (ISO 734-2:2008, corrected version 2009-06-
01)
Tourteaux de graines oléagineuses - Détermination de la Ölsamenschrote - Bestimmung des Ölgehaltes - Teil 2:
teneur en huile - Partie 2: Méthode rapide par extraction Schnellextraktionsverfahren (ISO 734-2:2008, korrigierte
(ISO 734-2:2008, version corrigée 2009-06-01) Fassung 2009-06-01)
This European Standard was approved by CEN on 13 March 2010.

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, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
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EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2010 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 734-2:2010: E
worldwide for CEN national Members.

Contents Page
Foreword .3

Foreword
The text of ISO 734-2:2008, corrected version 2009-06-01 has been prepared by Technical Committee
ISO/TC 34 “Food products” of the International Organization for Standardization (ISO) and has been taken
over as EN ISO 734-2:2010 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 October 2010, and conflicting national standards shall be withdrawn at
the latest by October 2010.
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 734-2:2008.
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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain,
Sweden, Switzerland and the United Kingdom.
Endorsement notice
The text of ISO 734-2:2008, corrected version 2009-06-01 has been approved by CEN as a EN ISO 734-
2:2010 without any modification.

INTERNATIONAL ISO
STANDARD 734-2
Second edition
2008-07-01
Corrected version
2009-06-01
Oilseed meals — Determination of oil
content —
Part 2:
Rapid extraction method
Tourteaux de graines oléagineuses — Détermination de la teneur en
huile —
Partie 2: Méthode rapide par extraction

Reference number
ISO 734-2:2008(E)
©
ISO 2008
ISO 734-2:2008(E)
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ISO 734-2:2008(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 734-2 was prepared by Technical Committee ISO/TC 34, Food products, Subcommittee SC 2,
Oleaginous seeds and fruits and oilseed meals.
This second edition cancels and replaces the first edition (ISO 734-2:1998), which has been technically
revised.
ISO 734 consists of the following parts, under the general title Oilseed meals — Determination of oil content:
⎯ Part 1: Extraction method with hexane (or light petroleum)
⎯ Part 2: Rapid extraction method
This corrected version of ISO 734-2:2008 incorporates the following corrections:
⎯ on p. 2, “and materials” has been deleted from the Clause 6 title;
⎯ on p. 3, a revised Figure 2 now indicates tolerances to the dimensions.

INTERNATIONAL STANDARD ISO 734-2:2008(E)

Oilseed meals — Determination of oil content —
Part 2:
Rapid extraction method
1 Scope
This part of ISO 734 specifies an extraction method which may be used to assess the efficiency of a de-oiling
process by comparing the oil content of the oilseed with the residual oil content of the corresponding
extraction meals, pellets and expeller cakes.
It is not applicable to disputed cases, for which ISO 734-1 is applicable.
It is applicable to oilseed meals obtained from oilseeds by expelling or by extraction with a solvent, as well as
to the pellets made from the residues.
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 771, Oilseed residues — Determination of moisture and volatile matter content
ISO 5502, Oilseed residues — Preparation of test samples
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
oil content
sum of the mass fractions of the substances extracted under the operating conditions specified in this part of
ISO 734 on the basis of the product as received
NOTE 1 The mass fraction is expressed as a percentage.
NOTE 2 On request, the oil content may be expressed relative to dry matter.
4 Principle
The test portion is ground in a micro-ball mill in the presence of a solvent and subsequently extracted with the
same solvent in a suitable apparatus. The solvent is removed from the extract by distillation, then the residue
is weighed after drying.
ISO 734
...