SIST EN 15585:2009

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Getreide- und Getreideerzeugnisse - Hartweizen (T. Durum Desf.) - Bestimmung des prozentualen Anteils an mehligen Körnern und Berechnung des prozentualen Anteils an glasigen KörnernCéréales et produits céréaliers - Blé dur (T. durum Desf.) - Détermination du taux de mitadinage et calcul du taux de vitrositéCereals and cereal products - Durum wheat (T. durum Desf.) - Determination of percentage of mitadine grains and calculation of percentage of vitreous grains67.060QMLKCereals, pulses and derived productsICS:Ta slovenski standard je istoveten z:EN 15585:2008SIST EN 15585:2009en,fr,de01-januar-2009SIST EN 15585:2009SLOVENSKI
STANDARD



SIST EN 15585:2009



EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 15585July 2008ICS 67.060 English VersionCereals and cereal products - Durum wheat (T. durum Desf.) -Determination of percentage of mitadine grains and calculationof percentage of vitreous grainsCéréales et produits céréaliers - Blé dur (T. durum Desf.) -Détermination du taux de mitadinage et calcul du taux devitrositéGetreide- und Getreideerzeugnisse - Hartweizen (T. DurumDesf.) - Bestimmung des prozentualen Anteils an mehligenKörnern und Berechnung des prozentualen Anteils anglasigen KörnernThis European Standard was approved by CEN on 21 June 2008.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards 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 translationunder the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as theofficial 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.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2008 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 15585:2008: ESIST EN 15585:2009



EN 15585:2008 (E) 2 Contents Page Foreword.3 1 Scope.4 2 Normative references.4 3 Terms and definitions.4 4 Principle.4 5 Apparatus.5 6 Sampling.5 7 Procedure.5 8 Expression of results.6 9 Precision.7 10 Test report.8 ANNEX A (informative).9 Results of interlaboratory tests.9 Bibliography.11
SIST EN 15585:2009



EN 15585:2008 (E) 3 Foreword This document (EN 15585:2008) has been prepared 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 January 2009, and conflicting national standards shall be withdrawn at the latest by January 2009. 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. 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 the United Kingdom.
SIST EN 15585:2009



EN 15585:2008 (E) 4 1 Scope This European Standard specifies a reference method for the determination of the proportion of mitadine grains, applicable exclusively to durum wheat (Triticum durum Desf.). 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. EN 15587, Cereals and cereal products - Determination of Besatz in wheat (Triticum aestivum L.), durum wheat (Triticum durum Desf.), rye (Secale cereale L.) and feed barley (Hordeum vulgare L.) EN ISO 6644, Flowing cereals and milled cereal products - Automatic sampling by mechanical means (ISO 6644:2002) EN ISO 13690, Cereals, pulses and milled products - Sampling of static batches (ISO 13690:1999) prEN ISO 24333, Cereals and cereal products - Sampling (ISO/DIS 24333:2008) ISO 5223, Test sieves for cereals 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 vitreous grain translucent grain, the cut grain having a smooth, shiny surface without any mealy appearance 3.2 mitadine grain durum wheat grain which is not considered to be completely vitreous under the conditions of this European Standard NOTE In some countries, these grains are also called piebald grains. 3.3 proportion of mitadine grains percentage by mass of mitadine grains in a sample of durum wheat as determined with the method described in this European Standard 3.4 proportion of vitreous grains percentage by mass as calculated with the formula given in 8 4 Principle Removal of any impurities, including grains of common wheat (Triticum aestivum), by sifting and sorting by hand according to EN 15587, followed by separation of visibly mitadine grains, and verification of the vitreous state of the other grains after cutting with a scalpel. SIST EN 15585:2009



EN 15585:2008 (E) 5 5 Apparatus 5.1 Sample divider 5.2 Sieve, with perforated plate having slots 1,9 mm x 20,0 mm, complying with the requirements of ISO 5223. 5.3 Scalpel. 5.4 Balance, having an accuracy of 0,1 g. 6 Sampling It is important the laboratory receive a sample which is truly representative and has not been damaged or changed during transport and storage.
Sampling is not part of the method specified in this International Standard. Recommended sampling methods are given in EN ISO 6644, EN ISO 13690 and prEN ISO 24333. 7 Procedure 7.1 Preparation of the test sample 7.1.1 Take approximately 50 g of the laboratory sample using the sample divider (5.1), and weigh it to the nearest 0,1 g (mass m). 7.1.2 Place the test sample on the sieve (5.2) and shake by hand or machine for 30 s, keeping the sieve horizontal and moving it in the direction parallel with the length of the slots. Discard the material passing through the sieve. 7.1.3 Remove by hand any impurities
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