DIN EN ISO 5223-2016 Test sieves for cereals (ISO 5223 1995 including Amendment 1 1999) German version EN ISO 5223 2015《检验用谷物选筛(ISO 5223-1995 包括Amendment 1-1999) 德文版本EN ISO 5223-20.pdf

1、May 2016 English price group 9No 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).ICS 67.260!%UV“2505192www.din.deDIN EN IS

2、O 5223Test sieves for cereals (ISO 5223:1995, including Amendment 1:1999);English version EN ISO 5223:2015,English translation of DIN EN ISO 5223:2016-05Analysensiebe fr Getreide (ISO 5223:1995, einschlielich nderung 1:1999);Englische Fassung EN ISO 5223:2015,Englische bersetzung von DIN EN ISO 5223

3、:2016-05Tamis de contrle pour crales (ISO 5223:1995, y compris Amendement 1:1999);Version anglaise EN ISO 5223:2015,Traduction anglaise de DIN EN ISO 5223:2016-05www.beuth.deDocument comprises 14 pagesDTranslation by DIN-Sprachendienst.In case of doubt, the German-language original shall be consider

4、ed authoritative.06.16DIN EN ISO 5223:2016-05 2 A comma is used as the decimal marker. National foreword The text of International Standard ISO 5223:1995, including Amendment 1:1999, has been prepared by Technical Committee ISO/TC 34 “Food products” (Secretariat AFNOR, France), Subcommittee SC 4 “Ce

5、reals and pulses” (Secretariat: SAC, China) and has been taken over as EN ISO 5223:2015 by Technical Committee CEN/TC 338 “Cereal and cereal products” (Secretariat: AFNOR, France). The responsible German body involved in its preparation was DIN-Normenausschuss Lebensmittel und landwirtschaftliche Pr

6、odukte (DIN Standards Committee Food and Agricultural Products), Working Committee NA 057-05-06 AA Getreide und Getreideerzeugnisse. The DIN Standards corresponding to the International Standards referred to in this document are as follows: ISO 2395 DIN ISO 2395 ISO 3310-2 DIN ISO 3310-2 National An

7、nex NA (informative) Bibliography DIN ISO 2395, Test sieves and test sieving Vocabulary DIN ISO 3310-2, Test sieves Technical requirements and testing Part 2: Test sieves of perforated metal plate EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 5223 December 2015 ICS 67.260 English Version

8、Test sieves for cereals (ISO 5223:1995, including Amendment 1:1999) Tamis de contrle pour crales (ISO 5223:1995, y compris Amendement 1:1999) Analysensiebe fr Getreide (ISO 5223:1995, einschlielich nderung 1:1999) This European Standard was approved by CEN on 30 November 2015. CEN members are bound

9、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-

10、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

11、 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, Lux

12、embourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brus

13、sels 2015 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 5223:2015 EEN ISO 5223:2015 (E) 2 Contents Page European foreword . 3 Foreword 4 Foreword to ISO 5223:1995/Amd.1:1999 5 Introduction 6 1 Scope 7 2 Normative references 8

14、 3 Definitions . 8 4 Requirements . 8 4.1 General 8 4.2 Sieving medium . 8 4.2.1 Test sieves with long rounded apertures . 8 4.2.2 Test sieves with round apertures 9 4.3 Frame 11 4.3.1 Shape and size . 11 4.3.2 Construction of the test sieve frame, lid and receiver 11 4.3.3 Marking 11 5 Test report

15、11 6 Verification . 12 6.1 Checking the aperture sizes . 12 6.2 Checking the aperture pitch . 12 6.3 Measuring the plate thickness . 12 DIN EN ISO 5223:2016-05 EN ISO 5223:2015 (E) 3 European foreword The text of ISO 5223:1995, including Amendment 1:1999 has been prepared by Technical Committee ISO/

16、TC 34 “Food products” of the International Organization for Standardization (ISO) and has been taken over as EN ISO 5223:2015 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 stand

17、ard, either by publication of an identical text or by endorsement, at the latest by June 2016, and conflicting national standards shall be withdrawn at the latest by June 2016. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN a

18、nd/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, Croatia, Cyprus, Cz

19、ech 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, Turkey and the United Kingd

20、om. Endorsement notice The text of ISO 5223:1995, including Amendment 1:1999 has been approved by CEN as EN ISO 5223:2015 without any modification. DIN EN ISO 5223:2016-05 EN ISO 5223:2015 (E) 4 Foreword ISO (the International Organization for Standardization) is a worldwide federation of national s

21、tandards 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

22、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. Draft International Standards adopted by the technical committees a

23、re 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. International Standard ISO 5223 was prepared by Technical Committee ISO/TC 34, Agricultural food products, Subcommittee SC 4, Cereals and pu

24、lses, in collaboration with the International Association for Cereal Science and Technology (ICC). This third edition cancels and replaces the second edition (ISO 5223:1983), which has been technically revised. DIN EN ISO 5223:2016-05 EN ISO 5223:2015 (E) 5 Foreword to ISO 5223:1995/Amd.1:1999 ISO (

25、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 commi

26、ttee 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 electrotec

27、hnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 3. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approv

28、al by at least 75 % of the member bodies casting a vote. Attention is drawn to the possibility that some of the element of this Amendment may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Amendment 1 to International Standard ISO 52

29、23:1995 was prepared by Technical Committee ISO/TC 34, Agricultural food products, Subcommittee SC 4, Cereals and pulses. DIN EN ISO 5223:2016-05 EN ISO 5223:2015 (E) 6 Introduction The commercial value of a batch of cereals is affected by the presence of undesirable substances. The amount of these

30、substances in a sample is measured by carrying out various separating processes, of which the principal one is test sieving. The test sieving procedure is carried out under conditions determined by commercial practice, contracts or official regulations, with low accuracy. Consequently, more often th

31、an not, the only dimensions given for test sieves are the diameter or the width of the apertures in the perforated plate. The other features of test sieves are not normally specified, despite their effect on the results. Therefore, this international Standard describes those test sieves most frequen

32、tly used in commerce. DIN EN ISO 5223:2016-05 EN ISO 5223:2015 (E) 7 1 Scope This International Standard specifies requirements for test sieves to be used for the laboratory determination of undesirable substances in a sample of cereals and which pass through test sieves of the following nominal siz

33、es: a) test sieves with long rounded apertures: 1,00 mm 20,0 mm 1,50 mm 20,0 mm 1,60 mm 20,0 mm 1,70 mm 20,0 mm 1,80 mm 20,0 mm 1,90 mm 20,0 mm 2,00 mm 20,0 mm 2,20 mm 20,0 mm 2,25 mm 20,0 mm 2,50 mm 20,0 mm 2,80 mm 20,0 mm 3,50 mm 20,0 mm 3,55 mm 20,0 mm b) test sieves with round apertures: diamete

34、r 1,40 mm diameter 1,80 mm diameter 4,50 mm Test sieves with long rounded apertures listed in a) are used in particular for separating “shrivelled” kernels from rye, triticale, durum wheat, common wheat and barley. Exceptions are those with apertures of 1,50 mm and 1,60 mm which are used for grading

35、 rice, as well as those with apertures of 2,50 mm and 2,80 mm which are usually used for the calibration of malting barley. Test sieves with rounded apertures of diameter 1,40 mm are used for separating chips (small fragments of kernels) from rice; those with diameter 1,80 mm are used for sorghum; t

36、hose with diameter 4,50 mm are used for separating broken grains from maize. DIN EN ISO 5223:2016-05 EN ISO 5223:2015 (E) 8 2 Normative references The following standards contain provisions which, through reference in this text, constitute provisions of this International Standard. At the time of pu

37、blication, the editions indicated were valid. All standards are subject to revision, and parties to agreements based on this International Standard are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below. Members of IEC and ISO maintain reg

38、isters of currently valid International Standards. ISO 2395:1990, Test sieves and test sieving Vocabulary. ISO 3310-2:1990, Test sieves Technical requirements and testing Part 2: Test sieves of perforated metal plate. 3 Definitions For the purposes of this International Standard, the definitions giv

39、en in ISO 2395 apply. 4 Requirements 4.1 General All parts shall be made of metal. A cover and a receiver, made of the same metal and gauge as the sieve frame, shall be used. In the case of test sieves with long rounded apertures, test sieving is carried out using one or more test sieves. In the lat

40、ter case, the test sieves shall have different nominal aperture sizes and shall constitute a regular or irregular set of test sieves. 4.2 Sieving medium The sieving medium shall consist of stainless steel, plated mild steel, or other suitable material1). It shall be attached to the frame by welding

41、or by other methods so that it cannot become detached from the frame, it is recommended that the same type of sieving medium be used for all test sieves in one analysis. Holes in perforated plates shall be cleanly formed. The plates shall be mounted punch-side uppermost. 4.2.1 Test sieves with long

42、rounded apertures The characteristics of test sieves are given in table 1. The apertures shall be arranged in lines as shown in figure 1. There shall be no part-slots at the junction of the sieving medium with sieve frame. 1) For further details, see ISO 683-13:1986, Heat-treatable steels, alloy ste

43、els and free-cutting steels Part 13: Wrought stainless steels. DIN EN ISO 5223:2016-05 EN ISO 5223:2015 (E) 9 Table 1 Characteristics of test sieves with long rounded apertures and linear perforations Dimensions in millimetres Dimensions of apertures Pitches1)aPlate thickness Width Tolerance on widt

44、h Length Tolerance on length Normal tolerance Reduced tolerance Tolerance 1 12 21 1 12 21,00 0,03 20,0 0,2 3,0 0,20 0,10 25,0 0,5 0,5 to 0,6 1,50 0,04 20,0 0,2 4,0 0,24 0,12 25,0 0,5 0,8 to 0,9 1,60 0,04 20,0 0,2 4,0 0,24 0,12 25,0 0,5 0,8 to 0,9 1,70 0,04 20,0 0,2 4,0 0,24 0,12 25,0 0,5 0,8 to 0,9

45、1,80 0,04 20,0 0,2 4,2 0,24 0,12 25,0 0,5 0,8 to 0,9 1,90 0,04 20,0 0,2 4,3 0,24 0,12 25,0 0,5 0,8 to 0,9 2,00 0,04 20,0 0,2 4,5 0,26 0,13 25,0 0,5 0,8 to 0,9 2,20 0,05 20,0 0,2 4,9 0,26 0,13 25,0 0,5 0,8 to 0,9 2,25 0,05 20,0 0,2 4,9 0,26 0,13 25,0 0,5 0,8 to 0,9 2,50 0,05 20,0 0,2 4,9 0,26 0,13 25

46、,0 0,5 0,5 to 0,6 2,80 0,05 20,0 0,2 4,9 0,26 0,13 25,0 0,5 0,8 to 0,9 3,50 0,06 20,0 0,2 6,8 0,34 0,17 25,0 0,5 0,8 to 0,9 3,55 0,06 20,0 0,2 6,8 0,34 0,17 25,0 0,5 0,8 to 0,9 1)aSee figure 1. 4.2.2 Test sieves with round apertures Unless otherwise specified in this International Standard, test sie

47、ves with round apertures shall comply with the requirements of ISO 3310-2 and, in particular, shall have the following characteristics: either nominal diameter of aperture (w): 1,40 mm, aperture tolerance: 0,08 mm, pitch (centres) (p): 2,6 mm nominal; 3,0 mm max.; 2,2 mm min. or nominal diameter of

48、aperture (w): 4,50 mm, aperture tolerance: 0,14 mm, pitch (centres) (p): 6,3 mm nominal; 7,2 mm max.; 5,3 mm min. The apertures shall be arranged in staggered rows as shown in figure 2. DIN EN ISO 5223:2016-05 EN ISO 5223:2015 (E) 10 Figure 1 Apertures of test sieves with long rounded apertures Line

49、ar arrangement NOTE The centres of the apertures are arranged at the apexes of equilateral triangles. Figure 2 Apertures of test sieves with round apertures Staggered arrangement DIN EN ISO 5223:2016-05 EN ISO 5223:2015 (E) 11 4.3 Frame 4.3.1 Shape and size The test sieves shall be round and have a nominal internal diameter of 200 mm 1,0 mm. The depth of the frame (i. e. the distance between two successive sieving media or between the sieving medium and the lid or the base