EN ISO 21415-4:2007

SLOVENSKI STANDARD
01-julij-2007
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Wheat and wheat flour - Gluten content - Part 4: Determination of dry gluten from wet
gluten by a rapid drying method (ISO 21415-4:2006)
Weizen und Weizenmehl - Glutengehalt - Teil 4: Bestimmung des Trockenglutens aus
Feuchtgluten mittels Schnelltrocknungsverfahren (ISO 21415-4:2006)
Blé et farines de blé - Teneur en gluten - Partie 4: Détermination du gluten sec a partir du
gluten humide par une méthode de séchage rapide (ISO 21415-4:2006)
Ta slovenski standard je istoveten z: EN ISO 21415-4:2007
ICS:
67.060 äLWDVWURþQLFHLQSURL]YRGLL] Cereals, pulses and derived
QMLK products
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN ISO 21415-4
NORME EUROPÉENNE
EUROPÄISCHE NORM
March 2007
ICS 67.060
English Version
Wheat and wheat flour - Gluten content - Part 4: Determination
of dry gluten from wet gluten by a rapid drying method (ISO
21415-4:2006)
Blé et farines de blé - Teneur en gluten - Partie 4: Weizen und Weizenmehl - Glutengehalt - Teil 4:
Détermination du gluten sec à partir du gluten humide par Bestimmung des Trockenglutens aus Feuchtgluten mittels
une méthode de séchage rapide (ISO 21415-4:2006) Schnelltrocknungsverfahren (ISO 21415-4:2006)
This European Standard was approved by CEN on 25 February 2007.
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, 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 United Kingdom.
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EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36  B-1050 Brussels
© 2007 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 21415-4:2007: E
worldwide for CEN national Members.

Foreword
The text of ISO 21415-4:2006 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 21415-4:2007 by Technical Committee CEN/TC 338 "Cereal and
cereal products", 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 September 2007, and conflicting national
standards shall be withdrawn at the latest by September 2007.

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, 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 United
Kingdom.
Endorsement notice
The text of ISO 21415-4:2006 has been approved by CEN as EN ISO 21415-4:2007 without any
modifications.
INTERNATIONAL ISO
STANDARD 21415-4
First edition
2006-05-01
Wheat and wheat flour — Gluten
content —
Part 4:
Determination of dry gluten from wet
gluten by a rapid drying method
Blé et farines de blé — Teneur en gluten —
Partie 4: Détermination du gluten sec à partir du gluten humide par une
méthode de séchage rapide
Reference number
ISO 21415-4:2006(E)
©
ISO 2006
ISO 21415-4:2006(E)
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ISO 21415-4:2006(E)
Contents Page
Foreword. iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions. 1
4 Principle. 1
5 Apparatus . 2
6 Procedure . 2
6.1 Preparation of the drying plates. 2
6.2 Drying wet gluten. 2
7 Calculation and expression of results. 2
7.1 Calculation of the dry gluten content . 2
7.2 Calculation of water content of the wet gluten.3
8 Precision. 3
8.1 Interlaboratory tests . 3
8.2 Repeatability. 3
8.3 Reproducibility. 3
9 Test report . 3
Annex A (normative) Electrically heated drying plates. 4
Annex B (informative) Results of an interlaboratory test. 5
Bibliography . 6

ISO 21415-4:2006(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 colla
...