1、Solid biofuels Determination of content of heavy extraneous materials larger than 3,15 mmBS EN ISO 19743:2017BSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 19743 May 2017 ICS 27.190; 75.160.40 English Version
2、Solid biofuels - Determination of content of heavy extraneous materials larger than 3,15 mm (ISO 19743:2017) Biocombustibles solides - Dosage de la teneur en matriaux lourds exognes de dimension suprieure 3,15 mm (ISO 19743:2017) Biogene Festbrennstoffe - Bestimmung des Gehaltes an schweren Fremdsto
3、ffen mit einer Partikelgre von mehr als 3,15 mm (ISO 19743:2017) This European Standard was approved by CEN on 13 April 2017. 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 w
4、ithout 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, French, German). A version in any oth
5、er 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, Bulgaria, Croatia, Cyprus, Czech Republic,
6、 Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROP
7、EAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2017 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 19743:2017 EN
8、ational forewordThis British Standard is the UK implementation of EN ISO 19743:2017. It is identical to ISO 19743:2017.The UK participation in its preparation was entrusted to Technical Committee PTI/17, Solid biofuels.A list of organizations represented on this committee can be obtained on request
9、to its secretary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2017 Published by BSI Standards Limited 2017ISBN 978 0 580 87008 8ICS 75.160.40; 27.190Compliance with a Brit
10、ish Standard cannot confer immunity from legal obligations. This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 July 2017.Amendments/corrigenda issued since publicationDate Text affectedBRITISH STANDARDBS EN ISO 19743:2017EUROPEAN STANDARD NOR
11、ME EUROPENNE EUROPISCHE NORM EN ISO 19743 May 2017 ICS 27.190; 75.160.40 English Version Solid biofuels - Determination of content of heavy extraneous materials larger than 3,15 mm (ISO 19743:2017) Biocombustibles solides - Dosage de la teneur en matriaux lourds exognes de dimension suprieure 3,15 m
12、m (ISO 19743:2017) Biogene Festbrennstoffe - Bestimmung des Gehaltes an schweren Fremdstoffen mit einer Partikelgre von mehr als 3,15 mm (ISO 19743:2017) This European Standard was approved by CEN on 13 April 2017. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipu
13、late 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-CENELEC Management Centre or to any CEN member. This European S
14、tandard 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 the same status as the official versions. CEN members are the
15、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, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania,
16、 Serbia, 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 Brussels 2017 CEN All rights of exploitation in any form an
17、d by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 19743:2017 EBS EN ISO 19743:2017EN ISO 19743:2017 (E) 2 European foreword This document (EN ISO 19743:2017) has been prepared by Technical Committee ISO/TC 238 “Solid biofuels“ in collaboration with Technical Committee CEN/T
18、C 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 publication of an identical text or by endorsement, at the latest by November 2017, and conflicting national standards shall be withdrawn at the latest b
19、y November 2017. 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 stand
20、ards 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, Ireland, Italy, Latvia, Lithuania, Lu
21、xembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Endorsement notice The text of ISO 19743:2017 has been approved by CEN as EN ISO 19743:2017 without any modification. ISO 19743:2017(E)Foreword ivIn
22、troduction v1 Scope . 12 Normative references 13 Terms and definitions . 14 Principle 25 Apparatus . 26 Sample preparation . 27 Procedure. 38 Calculation 39 Performance characteristics 410 Test report . 4Bibliography 5 ISO 2017 All rights reserved iiiContents PageBS EN ISO 19743:2017ISO 19743:2017(E
23、)Foreword ivIntroduction v1 Scope . 12 Normative references 13 Terms and definitions . 14 Principle 25 Apparatus . 26 Sample preparation . 27 Procedure. 38 Calculation 39 Performance characteristics 410 Test report . 4Bibliography 5 ISO 2017 All rights reserved iiiContents PageBS EN ISO 19743:2017IS
24、O 19743:2017(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 committees. Each member body interested in a subject
25、 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 Electrotechnical Commission (IEC)
26、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 ISO documents should be note
27、d. 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 responsible for identifyin
28、g 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 given for the convenienc
29、e of users and does not constitute an endorsement.For an explanation on the voluntary nature of standards, the meaning of ISO specific terms and expressions related to conformity assessment, as well as information about ISOs adherence to the World Trade Organization (WTO) principles in the Technical
30、 Barriers to Trade (TBT) see the following URL: www .iso .org/ iso/ foreword .html.This document was prepared by Technical Committee ISO/TC 238, Solid biofuels.iv ISO 2017 All rights reservedBS EN ISO 19743:2017ISO 19743:2017(E)ForewordISO (the International Organization for Standardization) is a wo
31、rldwide 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 committee has been established has the right to be represented o
32、n 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 electrotechnical standardization.The procedures used to develop this
33、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 ISO documents should be noted. This document was drafted in accordance with the editorial rules of the ISO/IEC Dire
34、ctives, 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 responsible for identifying any or all such patent rights. Details of any patent rights identified during the dev
35、elopment 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 given for the convenience of users and does not constitute an endorsement.For an explanation on the voluntary n
36、ature of standards, the meaning of ISO specific terms and expressions related to conformity assessment, as well as information about ISOs adherence to the World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see the following URL: www .iso .org/ iso/ foreword .html.This
37、 document was prepared by Technical Committee ISO/TC 238, Solid biofuels.iv ISO 2017 All rights reserved ISO 19743:2017(E)IntroductionDetermination of content of heavy extraneous materials larger than 3,15 mm top size is important when evaluating the suitability of using biomass as biofuel. Stones a
38、nd other impurities contained in biomass from stumps, roots, mill residue and harvest and landscape management residues may cause problems during size reduction, as well as during combustion.Impurities smaller than 3,15 mm are not considered as part of this testing method but may still contribute to
39、 the ash content. ISO 2017 All rights reserved vBS EN ISO 19743:2017BS EN ISO 19743:2017Solid biofuels Determination of content of heavy extraneous materials larger than 3,15 mm1 ScopeThis document specifies a method for the determination of content of heavy extraneous materials larger than 3,15 mm
40、by the use of sink-and-float separation combined with elutriation. This document is applicable to woody biomass in accordance with ISO 17225-1:2014, Table 1.NOTE 1 This method is designed to determine the level of impurities larger than 3,15 mm top size with a specific density 1 g/cm3such as stones,
41、 glass, rubber, metal and certain types of plastics.NOTE 2 During the processing of the sample, hand sorting of light impurities with a specific density 1 g/cm3(e.g. plastic foil) can also be done.2 Normative referencesThe following documents are referred to in the text in such a way that some or al
42、l of their content constitutes requirements 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.ISO 3310-2, Test sieves Technical requirements and testing Part 2: Test sieves
43、of perforated metal plateISO 14780, Solid biofuels Sample preparationISO 16559, Solid biofuels Terminology, definitions and descriptionsISO 18134-1, Solid biofuels Determination of moisture content Oven dry method Part 1: Total moisture Reference methodISO 18134-2, Solid biofuels Determination of mo
44、isture content Oven dry method Part 2: Total moisture Simplified methodISO 18135, Solid biofuels Sampling3 Terms and definitionsFor the purposes of this document, the terms and definitions given in ISO 16559 and the following apply.ISO and IEC maintain terminological databases for use in standardiza
45、tion at the following addresses: IEC Electropedia: available at h t t p :/ www .electropedia .org/ ISO Online browsing platform: available at h t t p :/ www .iso .org/ obp3.1heavy extraneous material on dry basisEMdmass of inorganic residue 3,15 mm with a specific density 1 g/cm3expressed as percent
46、age of the mass of the dry matter in the fuel3.2sedimentationtendency for particles in suspension to settle out of the fluid in which they are entrained due to gravity and come to rest against a barrierINTERNATIONAL STANDARD ISO 19743:2017(E) ISO 2017 All rights reserved 1BS EN ISO 19743:2017ISO 197
47、43:2017(E)3.3elutriationprocess for separating particles based on their size, shape and density using a stream of liquid flowing in a direction usually opposite to the direction of sedimentation4 PrincipleHeavy extraneous materials larger than 3,15 mm can be separated from the sample by using the si
48、nk-and-float separation combined with elutriation in water. The content of heavy extraneous materials is calculated by dividing the dry weight of the obtained material by the dry weight of the original sample and is thus expressed as a percentage on dry weight basis.5 Apparatus5.1 Water container.Th
49、e water container shall have a volume of at least 30 l (0,03 m3) but shall be small enough to allow tilting of the water-filled container. The container shall be smooth surfaced and waterproof. The height-diameter-ratio shall be within 1,0 and 1,3. The container shall have a circular bottom to enable the free movement of the particles in the flow of water when stirred. The container shall be cylindrical or with conical sidewalls with a maximum inclination of 15 to facilitate the overflow of the bioma
