SIST EN 14961-3:2011

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Trdna biogoriva - Specifikacije goriv in razredi - 3. del: Lesni briketi za neindustrijsko uporaboFeste Biobrennstoffe - Brennstoffspezifikationen und - klassen - Teil 3: Holzbriketts für nichtindustrielle VerwendungBiocombustibles solides - Classes et spécifications des combustibles - Partie 3: Briquettes de bois à usage non industrielSolid biofuels - Fuel specifications and classes - Part 3: Wood briquettes for non-industrial use75.160.10Trda gorivaSolid fuelsICS:Ta slovenski standard je istoveten z:EN 14961-3:2011SIST EN 14961-3:2011en,fr,de01-september-2011SIST EN 14961-3:2011SLOVENSKI
STANDARDSIST-TS CEN/TS 14961:20051DGRPHãþD



SIST EN 14961-3:2011



EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 14961-3
June 2011 ICS 75.160.10 English Version
Solid biofuels - Fuel specifications and classes - Part 3: Wood briquettes for non-industrial use
Biocombustibles solides - Classes et spécifications des combustibles - Partie 3: Briquettes de bois à usage non industriel
Feste Biobrennstoffe - Brennstoffspezifikationen und -klassen - Teil 3: Holzbriketts für nichtindustrielle Verwendung This European Standard was approved by CEN on 18 January 2011.
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 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 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, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre:
Avenue Marnix 17,
B-1000 Brussels © 2011 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 14961-3:2011: ESIST EN 14961-3:2011



EN 14961-3:2011 (E) 2 Contents Page Foreword .3Introduction .41 Scope .52 Normative references .53 Terms and definitions .64 Symbols and abbreviations .65 Specification of wood briquettes for non-industrial use .7Annex A (informative)
A–deviations .9Bibliography . 11 SIST EN 14961-3:2011



EN 14961-3:2011 (E) 3 Foreword This document (EN 14961-3:2011) has been prepared by 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 publication of an identical text or by endorsement, at the latest by December 2011, and conflicting national standards shall be withdrawn at the latest by December 2011. 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. The European standard series EN 14961 Solid biofuels  Fuel specifications and classes are provided as general requirements and additional product standards. Additional product standards may extend this series over time. EN 14961 consists of the following parts, under the general title Solid biofuels  Fuel specifications and classes:  Part 1: General requirements;  Part 2: Wood pellets for non-industrial use;  Part 3: Wood briquettes for non-industrial use;  Part 4: Wood chips for non-industrial use;  Part 5: Firewood for non-industrial use;  Part 6: Non woody pellets for non-industrial use (under development). NOTE In these product standards, non-industrial use means use in smaller scale appliances, such as in households and small commercial and public sector buildings. 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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. SIST EN 14961-3:2011



EN 14961-3:2011 (E) 4 Introduction This European Standard for "Fuel Specifications and Classes  Part 3: Wood briquettes for non-industrial use " has been produced by CEN/TC 335 Solid Biofuels Working group "Fuel Specifications, Classes and Quality Assurance". The objective of this European Standard is to provide unambiguous and clear classification principles for solid biofuels, 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 and reporting. This European Standard is made to support the use of wood briquettes in non-industrial situation and specifically for the domestic/householder markets and smaller commercial boiler situations, where sensitivity to the fuel quality can cause major issues. These consumers need special consideration for the following reasons:
• small-scale equipment does not usually have advanced controls and flue gas cleaning; • it is not generally managed by professional heating engineers; • they are often located in living and populated districts. NOTE Wood briquettes produced according to this European Standard can be used in stoves, fireplaces, cookers, roomheaters and multifired sauna stoves, which are tested according to EN 13229, EN 12815, EN 12809, EN 13240,
EN 15250 and EN 15821, and boilers systems tested according to EN 303-5 (< 500 kWth). SIST EN 14961-3:2011



EN 14961-3:2011 (E) 5 1 Scope This European standard determines the fuel quality classes and specifications of wood briquettes for non-industrial use. This European standard covers only wood briquettes produced from the following raw materials (see EN 14961-1:2010, Table 1): • 1.1 Forest, plantation and other virgin wood; • 1.2 By-products and residues from wood processing industry; • 1.3 Used wood. NOTE For the avoidance of doubt, demolition wood is not included in the scope of this European Standard. Demolition wood is “used wood arising from demolition of buildings or civil engineering installations” (EN 14588:2010, 4.52). 2 Normative references The following referenced documents are indispensable for the application of this standard. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 14588:2010, Solid biofuels  Terminology, definitions and descriptions EN 14774-1, Solid biofuels  Determination of moisture content  Oven dry method  Part 1: Total moisture  Reference method EN 14774-2, Solid biofuels  Determination of moisture content  Oven dry method  Part 2: Total moisture  Simplified procedure EN 14775, Solid biofuels  Determination of ash content EN 14918, Solid biofuels  Determination of calorific value EN 14961-1:2010, Solid biofuels  Fuel specifications and classes  Part 1: General requirements EN 15104, Solid biofuels  Determination of total content of carbon, hydrogen and nitrogen  Instrumental methods prEN 15150, Solid biofuels  Determination of particle density EN 15289, Solid biofuels  Determination of total content of sulphur and chlorine EN 15297, Solid biofuels  Determination of minor elements  As, Cd, Co, Cr, Cu, Hg, Mn, Mo, Ni, Pb, Sb, V and Zn prEN 16127, Solid biofuels  Determination of length and diameter for pellets and cylindrical briquettes SIST EN 14961-3:2011



EN 14961-3:2011 (E) 6 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 14588:2010 and the following apply. 3.1 wood briquette
densified biofuel made with or without additives in the form of cubiform or cylindrical units, produced by compressing pulverised biomass NOTE 1 The raw material for wood briquettes is woody biomass in accordance with Table 1 of EN 14961-1:2010. NOTE 2 Biofuel briquettes are usually manufactured in a piston press, with the total moisture content usually being less than 15 % of the mass on wet basis.
3.2 additive material which improves the quality of the fuel (e.g. combustion properties), reduces emissions or makes production more efficient 3.3 chemical treatment any treatment with chemicals other than air, water or heat (e.g. glue and paint)
NOTE Examples of chemical treatments are listed in informative Annex C of EN 14961-1:2010. 4 Symbols and abbreviations The symbols and abbreviations used in this European Standard comply with the SI system of units as far as possible. d
dry (dry basis) ar as received w-% weight-percentage A designation for ash content Ad [w-%, dry basis] 1) D designation for diameter as received, D [mm] 1) DE designation for particle density as received [g/cm3] 1) L designation for length as received, L [mm] 1) M designation for moisture content as received on wet basis, Mar [w-%] 1) Q design
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