1、BSI Standards PublicationBS EN ISO 17225-6:2014Solid biofuels Fuelspecifications and classesPart 6: Graded non-woody pelletsBS EN ISO 17225-6:2014 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN ISO17225-6:2014. It supersedes BS EN 14961-6:2012 which is withdraw
2、n.The UK participation in its preparation was entrusted to TechnicalCommittee PTI/17, Solid biofuels.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to include all the necessaryprovisions of a contract. Users are resp
3、onsible for its correctapplication. The British Standards Institution 2014. Published by BSI StandardsLimited 2014ISBN 978 0 580 78144 5ICS 27.190; 75.160.10Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theS
4、tandards Policy and Strategy Committee on 31 July 2014.Amendments issued since publicationDate Text affectedEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 17225-6 May 2014 ICS 27.190; 75.160.10 Supersedes EN 14961-6:2012English Version Solid biofuels - Fuel specifications and classes - Par
5、t 6: Graded non-woody pellets (ISO 17225-6:2014) Biocombustibles solides - Classes et spcifications des combustibles - Partie 6: Classes de granuls dorigine agricole (ISO 17225-6:2014) Feste Biobrennstoffe - Brennstoffspezifikationen und -klassen - Teil 6: Einteilung von nicht-holzartigen Pellets (I
6、SO 17225-6:2014) This European Standard was approved by CEN on 29 March 2014. 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 bibl
7、iographical 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 made by translation under the respon
8、sibility 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, Estonia, Finland, Former Yugoslav Repu
9、blic 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 United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMA
10、LISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2014 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 17225-6:2014 EBS EN ISO 17225-6:2014EN ISO 17225-6:2014 (E) 3 Forewor
11、d This document (EN ISO 17225-6:2014) 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 standard, either by
12、 publication of an identical text or by endorsement, at the latest by November 2014, and conflicting national standards shall be withdrawn at the latest by November 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
13、CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 14961-6:2012. This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and supports essential requirements of EU Di
14、rective(s). 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, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia,
15、 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 Kingdom. Endorsement notice The text of ISO 17225-6:2014 has been approved by CEN as
16、 EN ISO 17225-6:2014 without any modification. BS EN ISO 17225-6:2014ISO 17225-6:2014(E) ISO 2014 All rights reserved iiiContents PageForeword ivIntroduction v1 Scope . 12 Normative references 13 Terms and definitions . 24 Symbols and abbreviated terms . 35 Specification of graded non-woody pellets
17、. 3Bibliography 7BS EN ISO 17225-6:2014ISO 17225-6:2014(E)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 committee
18、s. 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 collaborates closely with the Inter
19、national Electrotechnical 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 diff
20、erent types of ISO 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 shal
21、l not be held responsible 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
22、 information given 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)
23、see the following URL: Foreword - Supplementary informationThe committee responsible for this document is ISO/TC 238, Solid biofuels.ISO 17225 consists of the following parts, under the general title Solid biofuels Fuel specifications and classes: Part 1: General requirements Part 2: Graded wood pel
24、lets Part 3: Graded wood briquettes Part 4: Graded wood chips Part 5: Graded firewood Part 6: Graded non-woody pellets Part 7: Graded non-woody briquettesiv ISO 2014 All rights reservedBS EN ISO 17225-6:2014ISO 17225-6:2014(E)IntroductionThe objective of the ISO 17225 series is to provide unambiguou
25、s and clear classification principles for solid biofuels and to serve as a tool to enable efficient trading of biofuels and to enable good understanding between seller and buyer as well as a tool for communication with equipment manufacturers. It will also facilitate authority permission procedures
26、and reporting.This part of ISO 17225 supports the use of graded non-woody pellets for residential, small commercial and public buildings as well as industrial energy generation applications, which require classified pellet quality.The residential, small commercial and public building applications re
27、quire higher quality fuel for the following reasons: Small-scale equipment does not usually have advanced controls and flue gas cleaning Appliances are not generally managed by professional heating engineers Appliances are often located in residential and populated districtsNon-woody pellets have hi
28、gh ash, chlorine, nitrogen and sulfur content and major element contents, so non-woody pellets are recommended to be used in appliances, which are specially designed or adjusted for this kind of pellet.NOTE 1 Pellets produced according to this part of ISO 17225 may be used in pellet burners tested a
29、ccording to EN 152701and pellet boilers or integrated-pellet burner systems tested according to EN 30352.NOTE 2 When using non-woody materials for combustion special attention should be paid to the risk of corrosion in small and medium scale boilers and flue gas systems. Be aware that herbaceous or
30、fruit biomass may influence the fuel ash composition differently depending on growth and soil conditions. The content of chlorine, phosphate and potassium in the material may form chlorides and phosphates and other chemical compounds resulting in high hydrochloric emissions and chemically active ash
31、 with low melting temperature causing corrosion.NOTE 3 In general non-woody biomass materials have higher content of ash forming elements and produces ashes with lower melting temperature compared to most woody biomass. This may result in fouling, slagging and corrosion inside boilers. These problem
32、s are especially related to materials that contain high content of potassium (K) and silicate (Si) and low content of calcium (Ca).NOTE 4 For individual contracts ISO 17225-1 can be used.Although these product standards may be obtained separately, they require a general understanding of the standard
33、s based on and supporting ISO 17225-1. It is recommended to obtain and use ISO 17225-1 in conjunction with these standards ISO 2014 All rights reserved vBS EN ISO 17225-6:2014BS EN ISO 17225-6:2014Solid biofuels Fuel specifications and classes Part 6: Graded non-woody pellets1 ScopeThis part of ISO
34、17225 determines the fuel quality classes and specifications of graded non-woody pellets. This part of ISO 17225 covers only non-woody pellets produced from the following raw material (see ISO 17225-1, Table 1): 2 Herbaceous biomassNOTE 1 Herbaceous biomass is from plants that have a non-woody stem
35、and which die back at the end of the growing season. It includes grains or seeds crops from food production or processing industry and their by-products such as cereals. 3 Fruit biomass 4 Aquatic biomass 5 Biomass blends and mixturesNOTE 2 Group 5 Blends and mixtures include blends and mixtures from
36、 the main origin-based solid biofuel groups woody, herbaceous biomass, fruit biomass and aquatic biomass.Blends are intentionally mixed biofuels, whereas mixtures are unintentionally mixed biofuels. The origin of the blend and mixture is to be described using ISO 17225-1, Table 1.If solid biofuel bl
37、end or mixture contains chemically treated material it shall be stated.NOTE 3 Thermally treated biomass pellets (e.g. torrefied pellets) are not included in the scope of this part of ISO 17225. Torrefaction is a mild pre-treatment of biomass at a temperature between 200 C to 300 C.2 Normative refere
38、ncesThe 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 any amendments) applies.NOTE
39、 ISO standards describing methods for analysis of fuel properties listed in the Bibliography, will become normative references when they are published.ISO 16559, Solid biofuels Terminology, definitions and descriptions1)ISO 16948, Solid biofuels Determination of total content of carbon, hydrogen and
40、 nitrogen2)ISO 16968, Solid biofuels Determination of minor elements3)ISO 16994, Solid biofuels Determination of total content of sulfur and chlorine4)1) To be published.2) To be published.3) To be published.4) To be published.INTERNATIONAL STANDARD ISO 17225-6:2014(E) ISO 2014 All rights reserved 1
41、BS EN ISO 17225-6:2014ISO 17225-6:2014(E)ISO 17225-1, Solid biofuels Fuel specifications and classes Part 1: General requirementsISO 17828, Solid biofuels Determination of bulk density5)ISO 17829, Solid Biofuels Determination of length and diameter of pellets6)ISO 17831-1, Solid biofuels Determinati
42、on of mechanical durability of pellets and briquettes Part 1: Pellets7)ISO 18122, Solid biofuels Determination of ash content8)ISO 18134-1, Solid biofuels Determination of moisture content Oven dry method Part 1: Total moisture Reference method9)ISO 18134-2, Solid biofuels Determination of moisture
43、content Oven dry method Part 2: Total moisture Simplified method10)3 Terms and definitionsFor the purposes of this document, the terms and definitions given in ISO 16559 and the following apply.3.1non-woody pelletdensified biofuel made from grinded or milled biomass with or without additives and uni
44、tized as cylinders, usually diameter 6 dA4.0 4 A4.0+ 4 dA8.0 8 A8.0 + 8 dMechanical durability, DU, ISO 17831-1w-% as receivedDU97.5 97,5 DU97.5 97,5 DU96.5 96,5Fines, F d, ISO 18846 w-% as receivedF1.0 1,0 F1.0 1,0 F1.0 1,0Additives fw-%, dry Type and amount to be statedType and amount to be stated
45、Type and amount to be statedNet calorific value, Q, ISO 18125as received,MJ/kg or kWh/kgMinimum value to be statedMinimum value to be statedQ14.5 14,5 Q4.0 4,0Bulk density, BD, ISO 17828kg/m3as receivedBD600 600 BD580 580 BD550 550Nitrogen, N, ISO 16948 w-% dry N0.7 0,7 N0.5 0,5 N 2.0 2,0Sulfur, S,
46、ISO 16994 w-% dry S0.10 0,10 S0.05 0,05 S0.20 0,20Chlorine, Cl, ISO 16994 w-% dry Cl0.10 0,10 Cl0.08 0,08 Cl0.10 0,10Arsenic, As, ISO 16968 mg/kg dry 1 1 1Cadmium, Cd, ISO 16968 mg/kg dry 0,5 0,5 0,5Chromium, Cr, ISO 16968 mg/kg dry 50 50 50Copper, Cu, ISO 16968 mg/kg dry 20 20 20Lead, Pb, ISO 16968
47、 mg/kg dry 10 10 10Mercury, Hg, ISO 16968 mg/kg dry 0,1 0,1 0,1Nickel, Ni, ISO 16968 mg/kg dry 10 10 10Zinc, Zn, ISO 16968 mg/kg dry 100 100 100Informative Ash melting behaviour g, CEN/TS 153701 3C Should be stated Should be stated Should be stateda Selected size (e.g. D06, D08, D10, D12 or D25) of
48、pellets to be statedb Amount of pellets longer than 40 mm can be 1 w-% (for D06 to D10). Maximum length shall be 45 mm for pellets for D06 to D10. Pel-lets are longer than 3,15 mm, if they stay on a round hole-sieve of 3,15 mm.c Actual ash property class shall be stated.d Value to be stated.e At fac
49、tory gate in bulk transport (at the time of loading) and in small (up to 20 kg)and large sacks (at time of packing or when delivering to end-user).f Type of additives to aid production, delivery or combustion (e.g. pressing aids, slagging inhibitors or any other additives like starch, corn flour, potato flour, vegetable oil, lignin).g It is recommended that all characteristic temperatures (shrinkage start
