1、March 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 75.160.10!%MB“2429931www.din.deDIN
2、EN ISO 17829Solid biofuels Determination of length and diameter of pellets (ISO 17829:2015);English version EN ISO 17829:2015,English translation of DIN EN ISO 17829:2016-03Biogene Festbrennstoffe Bestimmung der Lnge und des Durchmessers von Pellets (ISO 17829:2015);Englische Fassung EN ISO 17829:20
3、15,Englische bersetzung von DIN EN ISO 17829:2016-03Biocombustibles solides Dtermination de la longueur et du diamtre des granuls (ISO 17829:2015);Version anglaise EN ISO 17829:2015,Traduction anglaise de DIN EN ISO 17829:2016-03SupersedesDIN EN 16127:2012-05www.beuth.deDocument comprises 13 pagesDT
4、ranslation by DIN-Sprachendienst.In case of doubt, the German-language original shall be considered authoritative.03.16 DIN EN ISO 17829:2016-03 2 A comma is used as the decimal marker. National foreword This document (EN ISO 17829:2015) has been prepared by Technical Committee ISO/TC 238 “Solid bio
5、fuels” in collaboration with Technical Committee CEN/TC 335 “Solid biofuels” (Secretariat: SIS, Sweden). The responsible German body involved in its preparation was DIN-Normenausschuss Materialprfung (DIN Standards Committee Materials Testing), Working Committee NA 062-05-82 AA Biogene Festbrennstof
6、fe. The DIN Standards corresponding to the International Standards referred to in this document are as follows: ISO 3310-2 DIN ISO 3310-2 ISO 16559 DIN EN ISO 16559 ISO 17225-1 DIN EN ISO 17225-1 ISO 17225-2 DIN EN ISO 17225-2 ISO 17225-6 DIN EN ISO 17225-6 ISO 17225-8 DIN EN ISO 17225-8 ISO 18846 E
7、 DIN EN ISO 18846 Amendments This standard differs from DIN EN 16127:2012-05 as follows: a) the German translation of “solid biofuels” has been changed throughout the document from “Feste Biobrennstoffe” to “Biogene Festbrennstoffe”; b) the content of EN ISO 17829 (based on EN 16127) has been adopte
8、d in full; c) references to EN Standards have been replaced by references to the relevant ISO Standards and have been updated; d) the former procedures A and B have been combined into one procedure whereby a selection is no longer possible; e) the standard has been editorially revised. Previous edit
9、ions DIN EN 16127: 2012-05 DIN EN ISO 17829:2016-03 3 National Annex NA (informative) Bibliography DIN EN ISO 16559, Solid biofuels Terminology, definitions and description DIN EN ISO 17225-1, Solid biofuels Fuel specifications and classes Part 1: General requirements DIN EN ISO 17225-2, Solid biofu
10、els Fuel specifications and classes Part 2: Graded wood pellets DIN EN ISO 17225-6, Solid biofuels Fuel specifications and classes Part 6: Graded non-woody pellets DIN EN ISO 17225-8, Solid biofuels Fuel specifications and classes Part 8: Graded thermally treated and densified biomass fuels E DIN EN
11、 ISO 18846, Solid biofuels Determination of fines content in quantities of pellets DIN ISO 3310-2, Test sieves Technical requirements and testing Part 2: Test sieves of perforated metal plate DIN EN ISO 17829:2016-03 4 This page is intentionally blank EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NOR
12、M EN ISO 17829 November 2015 ICS 27.190; 75.160.10 Supersedes EN 16127:2012English Version Solid biofuels - Determination of length and diameter of pellets (ISO 17829:2015) Biocombustibles solides - Dtermination de la longueur et du diamtre des granulsBiogene Festbrennstoffe - Bestimmung der Lnge un
13、d des Durchmessers von Pellets (ISO 17829:2015) This European Standard was approved by CEN on 5 September 2015. 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 alt
14、eration. 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, French, German). A version in any other language ma
15、de 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, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Esto
16、nia, 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 andUnited Kingdom. EUROPEAN COMMITTEE FOR STAND
17、ARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2015 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 17829:2015 E(ISO 17829:2015) Europea
18、n foreword .3Introduction 51 Scope . 62 Normative references 63 Terms and definitions . 64 Principle 65 Apparatus . 76 Sample preparation . 77 Procedure. 87.1 Determination of pellet diameter class 87.2 Measuring of individual pellet length . 87.3 Determination share of oversize length of pellets .
19、87.3.1 Weighing . 87.3.2 Sorting by length 87.3.3 Weighing of fractions by length 88 Calculation 98.1 Pellet diameter class 98.2 Share of oversize pellets . 98.3 Average pellet length . 99 Performance characteristics 910 Test report . 9Contents PageDIN EN ISO 17829:2016-03EN ISO 17829:2015 (E)2Forew
20、ord 4European foreword This document (EN ISO 17829:2015) has been prepared by Technical Committee ISO/TC 238 “Solid biofuels“ in collaboration with Technical Committee CEN/TC 335 “Solid biofuels” the secretariat of which is held by SIS. This European Standard shall be given the status of a national
21、standard, either by publication of an identical text or by endorsement, at the latest by May 2016, and conflicting national standards shall be withdrawn at the latest by May 2016. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CE
22、N and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 16127:2012. This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association. According to the CEN-CENELEC Internal
23、 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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Irela
24、nd, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Endorsement notice The text of ISO 17829:2015 has been approved by CEN as EN ISO 17829:2015 without any modification. DIN EN
25、 ISO 17829:2016-03EN ISO 17829:2015 (E)3 ForewordISO (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 bo
26、dy 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 Electrot
27、echnical Commission (IEC) on all matters of electrotechnical standardization.The procedures used to develop this document and those intended for its further maintenance are described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the different types of IS
28、O documents should be noted. This document was drafted in accordance with the editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).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 res
29、ponsible for identifying any or all such patent rights. Details of any patent rights identified during the development of the document will be in the Introduction and/or on the ISO list of patent declarations received (see www.iso.org/patents).Any trade name used in this document is information give
30、n for the convenience of users and does not constitute an endorsement.For an explanation on the meaning of ISO specific terms and expressions related to conformity assessment, as well as information about ISOs adherence to the WTO principles in the Technical Barriers to Trade (TBT) see the following
31、 URL: Foreword - Supplementary informationThe committee responsible for this document is ISO/TC 238, Solid biofuels.DIN EN ISO 17829:2016-03EN ISO 17829:2015 (E)4 IntroductionPellets with a length and diameter outside the specification can cause problems with transportation in screw conveyors, silo
32、outlets, and burner feeding systems. ISO 17225-1, ISO 17225-2, ISO 17225-6, and ISO 17225-8 stipulate dimensions of pellets. This International Standard describes procedures for determination the diameter classification according to ISO 17225-2 as well as the length and diameter of pellets.DIN EN IS
33、O 17829:2016-03EN ISO 17829:2015 (E)5 1 ScopeThis International Standard specifies the methods for the determination of diameter and length of pellets. Concerning the pellet length methods for both determination of the proportion of oversized pellets and for determination of the average length are i
34、ncluded.2 Normative referencesThe 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. For undated references, the latest edition of the referenced document (including an
35、y amendments) applies.ISO 16559, Solid biofuels Terminology, definitions and descriptionsISO 17225-1, Solid biofuels Fuel specifications and classes Part 1: General requirementsISO 17225-2, Solid biofuels Fuel specifications and classes Part 2: Graded wood pelletsISO 17225-6, Solid biofuels Fuel spe
36、cifications and classes Part 6: Graded non-woody pelletsISO 17225-81), Solid biofuels Fuel specifications and classes Part 8: Thermally treated and densified biomass fuelsEN 14778:2011, Solid biofuels SamplingEN 14780:2011, Solid biofuels Sample preparationISO 188462), Solid Biofuels Determination o
37、f fines content in quantities of pelletsISO 3310-2, Test sieves Technical requirements and testing Part 2: Test sieves of perforated metal plate3 Terms and definitionsFor the purpose of this document, the following terms and definitions given in ISO 16559 apply3.1test sampleoriginal sample sent to t
38、he laboratory for analysis3.2test portionsample extracted from the test sample and used during the analysis4 PrincipleThe length and diameter of fuel pellets of a representative test sample shall be measured by means of a caliper. The length of a pellet shall be measured along the axis of the cylind
39、er. The diameter shall be measured perpendicular to the axis (see Figures 1 and 2).1) In preparation.2) To be published.DIN EN ISO 17829:2016-03EN ISO 17829:2015 (E)6 KeyD diameter of a pelletL length of a pelletFigure 1 Length and diameter of a pelletFigure 2 Measuring the length between the mid-po
40、int of the convex and concave cross section of a pellet by means of a caliper.5 Apparatus5.1 Measuring caliper, shall have a resolution of at least 0,1 mm for measuring length and diameter.5.2 Balance, shall be capable of reading to the nearest 0,01 g.5.3 Sieve, shall have round holes of a diameter
41、at 3,15 mm in accordance with ISO 3310-2.6 Sample preparationThe test sample for determination of length and diameter shall be obtained in accordance with EN 14778 and a test portion shall be extracted in accordance with EN 14780. The test sample shall be divided into two test portions, one consisti
42、ng of 10 pellets and the other consisting of a minimum mass in accordance with Table 1. The pellets shall be randomly selected.DIN EN ISO 17829:2016-03EN ISO 17829:2015 (E)7 Table 1 Test portion sizePellet size class Estimated minimum test portion6 mm 30 g - 40 g8 mm 40 g - 50 g10 mm 50 g - 70 g12 m
43、m 70 g - 120 g25 mm 0 g - 500 g (minimum 50 pellets)Both test portions shall be sieved in accordance with ISO 18846 using a sieve with punched round holes 3,15 mm in diameter in accordance with ISO 3310-2.NOTE Rough handling during sample reduction and sieving could alter the surface of the pellets
44、and thereby influence the result.7 Procedure7.1 Determination of pellet diameter classIn order to determine the diameter class for the test portion with 10 pellets, the diameter of each pellet shall be measured by means of a caliper (see 5.1). Record the result of each measurement. The average of th
45、e diameter measurements closest to the class defined in ISO 17225-2 determines the pellet diameter class.7.2 Measuring of individual pellet lengthMeasure the length in mm of each pellet in the test portion with 40 - 50 pellets (see Clause 6) by means of a caliper (see 5.1). Record the result of each
46、 measurement.7.3 Determination share of oversize length of pellets7.3.1 WeighingDetermine the mass of the sieved test portion with 40 - 50 pellets by weighing to the nearest 0,01 g.7.3.2 Sorting by lengthSeparate all pellets in the test portion with 40 - 50 pellets by means of a caliper (see 5.1) al
47、l pellets longer than the maximum length specified by ISO 17225-1, ISO 17225-2, ISO 17225-6, and ISO 17225-8.NOTE Depending on the quality requirements, there can be more than one pellet length to be considered when sorting. Example: Concerning a D08 wood pellet, ISO 17225-2, Table 1 specifies 3,15
48、mm L 40 mm. Comment c in ISO 17225-2, Table 1 states:“Amount of pellets longer than 40 mm can be 1 w-%. Maximum length shall be 45 mm. Pellets are longer than 3,15 mm, if they stay on a round-hole sieve of 3,15 mm. (For the) amount of pellets shorter than 10 mm, (the) w-% (is) recommended to be stated”.7.3.3 Weighin
