DIN EN 15587-2014 Cereals and cereal products - Determination of Besatz in wheat (Triticum aestivum L ) durum wheat (Triticum durum Desf ) rye (Secale cereale L ) and feed barley (.pdf

1、February 2014 Translation by DIN-Sprachendienst.English price group 13No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).I

2、CS 67.060!%,BP“2093145www.din.deDDIN EN 15587Cereals and cereal products Determination of Besatz in wheat (Triticum aestivum L.),durum wheat (Triticum durum Desf.), rye (Secale cereale L.) andfeed barley (Hordeum vulgare L.);English version EN 15587:2008+A1:2013,English translation of DIN EN 15587:2

3、014-02Getreide und Getreideerzeugnisse Bestimmung von Besatz in Weizen (Triticum aestivum L.), Hartweizen (Triticum durumDesf.), Roggen (Secale cereale L.) und Futtergerste (Hordeum vulgare L.);Englische Fassung EN 15587:2008+A1:2013,Englische bersetzung von DIN EN 15587:2014-02Crales et produits cr

4、aliers Dtermination du pourcentage dimpurets dans le bl tendre (Triticum aestivum L.),le bl dur (Triticum durum Desf.), le seigle (Secale cereale L.) etlorge fourrag re (Hordeum vulgare L.);Version anglaise EN 15587:2008+A1:2013,Traduction anglaise de DIN EN 15587:2014-02SupersedesDIN EN 15587:2008-

5、12www.beuth.deDocument comprises 28 pagesIn case of doubt, the German-language original shall be considered authoritative.01.14eDIN EN 15587:2014-02 2 A comma is used as the decimal marker. National foreword This document (EN 15587:2008+A1:2013) has been prepared by Technical Committee CEN/TC 338 “C

6、ereals and cereal products” (Secretariat: AFNOR, France). The responsible German body involved in its preparation was the Normenausschuss Lebensmittel und landwirtschaftliche Produkte (Food and Agricultural Products Standards Committee), Working Committee NA 057-05-06 AA Getreide und Getreideerzeugn

7、isse. This standard includes Amendment A1 approved by CEN on 2013-08-24 as well as Technical Corrigendum 1 approved by CEN on 2009-01-14 which applied to the English version only and therefore did not affect the German version DIN EN 15587:2008. The start and finish of text introduced or altered by

8、Amendment 1 and Corrigendum 1 is indicated in the text by tags !“ and . Amendments This standard differs from DIN EN 15587:2008-12 as follows: a) the definitions given in 3.3, 3.3.2, 3.3.3, 3.3.4, 3.5, 3.5.2 and 3.5.3 and the diagram in Annex B have been modified; b) (German version only) in Clause

9、7, last paragraph, first sentence, “0,1 g” has been corrected to read “0,01 g”; c) the document has been editorially revised. Previous editions DIN EN ISO 15587: 2008-12 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 15587:2008+A1 October 2013 ICS 67.060 Supersedes EN 15587:2008 English Versio

10、n 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.) Crales et produits craliers - Dtermination du pourcentage dimpurets dans le bl tendre (Triticum aestivum L.), le b

11、l dur (Triticum durum Desf.), le seigle (Secale cereale L.) et lorge fourragre (Hordeum vulgare L.) Getreide und Getreideerzeugnisse - Bestimmung von Besatz in Weizen (Triticum aestivum L.), Hartweizen (Triticum durum Desf.), Roggen (Secale cereale L.) und Futtergerste (Hordeum vulgare L.) This Euro

12、pean Standard was approved by CEN on 21 June 2008 and includes Corrigendum 1 issued by CEN on 14 January 2009 and Amendment 1 approved by CEN on 24 August 2013. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard

13、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, Fr

14、ench, 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, Bulgari

15、a, 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, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turke

16、y and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2013 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Re

17、f. No. EN 15587:2008+A1:2013: E EN 15587:2008+A1:2013 (E) 2 Contents Page Foreword . 3 1 Scope 4 2 Normative references . 4 3 Terms and definitions 4 4 Principle 7 5 Apparatus . 7 6 Sampling . 8 7 Procedure (see diagram in Annex B) 8 8 Expression of results . 9 9 Precision . 10 10 Test report 11 Ann

18、ex A (informative) Schematic summary on Besatz 12 Annex B (normative) Diagram of procedure . 13 Annex C (informative) Example of calculation . 14 Annex D (informative) Results of interlaboratory test . 15 Bibliography 26 DIN EN 15587:2014-02 EN 15587:2008+A1:2013 (E) 3 Foreword This document (EN 155

19、87:2008+A1:2013) has been prepared by Technical Committee CEN/TC 338 “Cereals 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 April

20、 2014, and conflicting national standards shall be withdrawn at the latest by April 2014. 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 righ

21、ts. This document supersedes EN 15587:2008. This document includes Corrigendum 1 issued by CEN on 2009-01-14 and Amendment 1 approved by CEN on 2013-08-24. The start and finish of text introduced or altered by amendment is indicated in the text by tags !“. The modifications of the related CEN Corrig

22、endum have been implemented at the appropriate places in the text and are indicated by the tags . 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, Czec

23、h Republic, Denmark, Estonia, Finland, France, Former Yugoslav Republic of Macedonia, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom

24、. DIN EN 15587:2014-02 EN 15587:2008+A1:2013 (E) 4 1 Scope This European Standard specifies the term Besatz (impurities) and describes methods for the determination of its components. The term Besatz is used as a parameter for certain quality aspects in common wheat (Triticum aestivum L.), durum whe

25、at (Triticum durum Desf.), rye (Secale cereale L.) and feed barley (Hordeum vulgare L.). 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. F

26、or undated references, the latest edition of the referenced document (including any amendments) applies. 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 13

27、690:1999) prEN ISO 24333, Cereals and cereal products Sampling (ISO/DIS 24333:2006) ISO 5223, Test sieves for cereals 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 Besatz all matter of a sample of grain other than the basic cereal of unimpa

28、ired quality NOTE 1 It comprises the four fractions: broken grains, grain impurities, sprouted grains and miscellaneous impurities. NOTE 2 Live pests are not considered as Besatz. They are specified as a separate criterion. NOTE 3 A schematic summary on Besatz is given in Annex A. NOTE 4 Pictures of

29、 examples are given in 9. 3.2 broken grains all grains belonging to the basic cereal not damaged by pests and whose endosperm is partially uncovered, including grains damaged by threshing and grains from which the germ has been removed !3.3 grain impurities fraction consisting of shrivelled grains,

30、other cereals, grains damaged by pests, grains in which the germ is discoloured (only for common and durum wheat), mottled grains (only for durum wheat) and grains overheated during drying Note 1 to entry: For common wheat, grains in which the germ is discoloured are disregarded up to 8 %.“ DIN EN 1

31、5587:2014-02 EN 15587:2008+A1:2013 (E) 5 3.3.1 shrivelled grains grains which after elimination of all other matter defined in this European standard pass through 20 mm slotted sieves with widths of the following dimensions: common wheat 2,0 mm durum wheat 1,9 mm rye 1,8 mm feed barley 2,2 mm feed b

32、arley with moisture content below 12,5% 2,0 mm and grains damaged by frost and unripe grains (green) NOTE Frost damaged kernels can show the following appearance: black or brown discoloration, bleached or blistered, distinctly wax-like or candied surface. Frequently they have dark stripes showing th

33、rough the sides of the kernel. !3.3.2 other cereals all cereals grains, whatever their state, not belonging to the considered species Note 1 to entry: In a durum wheat sample, all common wheat grains and their grain dockage components are classified as other cereals and vice versa. 3.3.3 grains dama

34、ged by pests grains which show visible damage due to attack by insects, rodents, mites or other pests Note 1 to entry: Grains attacked by wheat midge are considered unsound grains (3.5.2) only when more than half the surface of the back of the grain is coloured grey to black as a result of secondary

35、 cryptogamic attack. Where discoloration covers less than half the surface of the back of the grain, they are classed as grains damaged by pests. 3.3.4 grains with discoloured germ, mottled grains grains either a) with discoloured germ in which the tegument covering the germ is coloured brown to bro

36、wnish black and in which the germ is normal and not sprouted; Note 1 to entry: If the germ is coloured only with one little spot, the grain is considered sound. Note 2 to entry: This fraction only exists for common wheat and durum wheat. Note 3 to entry: For common wheat these grains are disregarded

37、 up to 8 %. or b) mottled which show a brown to brownish black discoloration elsewhere than on the germ itself, particularly in the crease Note 4 to entry: If the coloration is only in the crease, grains are considered mottled only if the spot covers more than 1/4 of the length of the crease. Note 5

38、 to entry: This fraction only exists for durum wheat.“ DIN EN 15587:2014-02 EN 15587:2008+A1:2013 (E) 6 3.3.5 grains overheated during drying grains showing external signs of scorching but of which the kernels are sound NOTE Grains showing external signs of scorching and of which the kernels are col

39、oured yellowish-grey to brownish-black are considered unsound. 3.4 sprouted grains grains in which the radicle or plumule is clearly visible to the naked eye NOTE 1 Account should be taken of the general appearance of the sample when its content of sprouted grains is assessed. NOTE 2 In some cereal

40、classes the germ is protuberant, e.g. in durum wheat, and the germ tegument splits when the batch of cereals is shaken. These grains resemble sprouted grains but must not be included in that group. Sprouted grains are only those where the germ has undergone clearly visible changes which make it easy

41、 to distinguish the sprouted grain from the normal grain. !3.5 miscellaneous impurities (synonymous: Schwarzbesatz) fraction consisting of extraneous seeds, unsound grains, extraneous matter, husks, ergot, bunted grains and impurities of animal origin“ 3.5.1 extraneous seeds seeds of plants, whether

42、 or not cultivated, other than cereals NOTE 1 They comprise noxious and not noxious seeds. Noxious seeds means seeds which are toxic to humans and animals. This group also includes seeds hampering or complicating the cleaning and milling of cereals and seeds affecting the quality of products process

43、ed from cereals. NOTE 2 In some cases it may be necessary to distinguish between noxious seeds and not noxious seeds. An indicative list of noxious seeds is given in Annex A of ISO 7970:2000 4. !3.5.2 unsound grains grains of the species or another cereal rendered unfit for human consumption and, re

44、garding feed grain, for feed consumption, owing to putrefaction, mildew, grains affected with fungi (such as fusarium), bacterial or other causes Note 1 to entry: Unsound grains also include grains damaged by spontaneous heat generation or too extreme heating during drying which are fully grown grai

45、ns in which the tegument is coloured greyish-brown to black while the cross-section of the kernel is coloured-yellowish grey to brownish-black. Note 2 to entry: Grains attacked by wheat midge are considered unsound grains only when more than half the surface of the back of the grain is coloured grey

46、 to black as a result of secondary cryptogamic attack. Where discoloration covers less than half the surface of the back of the grain, they need to be classed with grains damaged by pests. Note 3 to entry: Grains affected with fusariosis are grains whose pericarp is contaminated with Fusarium myceli

47、um; such grains look often slightly shrivelled, wrinkled and have pink or white diffuse patches with an ill-defined outline. Grains affected by fusariosis are the major source of mycotoxins. DIN EN 15587:2014-02 EN 15587:2008+A1:2013 (E) 7 3.5.3 extraneous matter all matter in a sample of cereals re

48、tained by a sieve with apertures of 3,55 mm and passing through a sieve with apertures of 1,0 mm, and stones, sand, fragments of straw and similar impurities in the sample which pass through a sieve with apertures of 3,55 mm and are retained by a sieve with apertures of 1,0 mm Note 1 to entry: Other

49、 cereals and particularly large grains of the basic cereal and ergot which are retained by a sieve with apertures of 3,55 mm are not extraneous matter.“ 3.5.4 husks glumes and grain husks 3.5.5 ergot sclerotia of Claviceps purpurea 3.5.6 bunted grains grains filled with a fetid-smelling dust comprising the spores of smuts (Ustilago spp.) or brown-black spores of bunt (Tilletia spp.) 3.5.7 impurities of animal origin impurities originating from animals such as feathers, hairs, excrements, dead insects and fragment of insects 4