EN ISO 17225-5:2014

SLOVENSKI STANDARD
01-julij-2014
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SIST EN 14961-5:2011
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Solid biofuels - Fuel specifications and classes - Part 5: Graded firewood (ISO 17225-
5:2014)
Feste Biobrennstoffe - Brennstoffspezifikationen und - klassen - Teil 5: Einteilung von
Stückholz (ISO 17225-5:2014)
Biocombustibles solides - Classes et spécifications des combustibles - Partie 5: Classes
de bois de chauffage (ISO 17225-5:2014)
Ta slovenski standard je istoveten z: EN ISO 17225-5:2014
ICS:
27.190 Biološki viri in drugi Biological sources and
alternativni viri energije alternative sources of energy
75.160.10 Trda goriva Solid fuels
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN ISO 17225-5
NORME EUROPÉENNE
EUROPÄISCHE NORM
May 2014
ICS 27.190; 75.160.10 Supersedes EN 14961-5:2011
English Version
Solid biofuels - Fuel specifications and classes - Part 5: Graded
firewood (ISO 17225-5:2014)
Biocombustibles solides - Classes et spécifications des Feste Biobrennstoffe - Brennstoffspezifikationen und -
combustibles - Partie 5: Classes de bois de chauffage (ISO klassen - Teil 5: Einteilung von Stückholz (ISO 17225-
17225-5:2014) 5:2014)
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 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, 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 United
Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR 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 Ref. No. EN ISO 17225-5:2014 E
worldwide for CEN national Members.

Contents Page
Foreword .3

Foreword
This document (EN ISO 17225-5:2014) 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 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 CENELEC] shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN 14961-5:2011.
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 Directive(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, 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 17225-5:2014 has been approved by CEN as EN ISO 17225-5:2014 without any modification.

INTERNATIONAL ISO
STANDARD 17225-5
First edition
2014-05-01
Solid biofuels — Fuel specifications
and classes —
Part 5:
Graded firewood
Biocombustibles solides — Classes et spécifications des
combustibles —
Partie 5: Classes de bois de chauffage
Reference number
ISO 17225-5:2014(E)
©
ISO 2014
ISO 17225-5:2014(E)
© ISO 2014
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form
or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior
written permission. Permission can be requested from either ISO at the address below or ISO’s member body in the country of
the requester.
ISO copyright office
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Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail copyright@iso.org
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Published in Switzerland
ii © ISO 2014 – All rights reserved

ISO 17225-5:2014(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Symbols and abbreviated terms . 2
5 Specification of graded firewood . 2
Annex A (informative) Comparison of moisture content as received and dry basis .5
Annex B (informative) Measurement of firewood . 7
Annex C (informative) Calculation of energy density. 8
Bibliography .10
ISO 17225-5:2014(E)
Foreword
ISO (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
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) 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 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 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 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 ISO’s adherence to the WTO principles in the Technical Barriers
to Trade (TBT) see the following URL: Foreword - Supplementary information
The 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 pellets
— 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 briquettes
iv © ISO 2014 – All rights reserved

ISO 17225-5:2014(E)
Introduction
The objective of the ISO 17225 series is to provide unambiguous and clear classification principles for
solid biofuels; to serve as a tool to enable efficient trading of biofuels; 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 part of ISO 17225 supports the use of graded firewood for residential, small commercial and public
building applications.
The residential, small commercial and public building applications require 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 districts
NOTE 1 Firewood produced according to this part of ISO 17225 may be used in stoves, fireplaces, cookers,
[1]
roomheaters and multifired sauna stoves, which are tested according to European standards EN 13229 ,
[2] [3] [4] [5] [6]
EN 12815 , EN 12809 , EN 13240 , EN 15250 and EN 15821 , and boilers systems tested according to
[7]
EN 303–5 .
NOTE 2 For individual contracts ISO 17225-1 can be used.
Although these product standards may be obtained separately, they require a general understanding of
the standards based on and supporting ISO 17225-1. It is recommended to obtain and use ISO 17225-1
in conjunction with these standards.
INTERNATIONAL STANDARD ISO 17225-5:2014(E)
Solid biofuels — Fuel specifications and classes —
Part 5:
Graded firewood
1 Scope
This part of ISO 17225 determines the fuel quality classes and specifications of graded firewood. This
part of ISO 17225 covers only firewood produced from the following raw materials (see ISO 17225-1,
Table 1):
• 1.1.1 Whole trees without roots
• 1.1.3 Stem wood
• 1.1.4 Logging residues (thick branches, tops etc.)
• 1.2.1 Chemically untreated wood residues
2 Normative references
The 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.
1)
ISO 16559, Solid biofuels — Terminology, definitions and descriptions
ISO 17225-1, Solid biofuels — Fuel specifications and classes — Part 1: General requirements
ISO 18134-1, Solid biofuels — Determination of moisture content — Oven dry method — Part 1: Total
2)
moisture — Reference method
ISO 18134-2, Solid biofuels — Determination of moisture content — Oven dry method — Part 2: Total
3)
moisture - Simplified method
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 16559 and the following apply.
3.1
firewood
cut and split oven-ready fuelwood used in household wood burning appliances like stoves, fireplaces
and central heating systems
Note 1 to entry: Firewood usually has a uniform length, typically in the range of 15 cm to 100 cm.
1) To be published.
2) To be published.
3) To be published.
ISO 17225-5:2014(E)
3.2
commercial application
facility that utilize solid biofuel burning appliances or equipment that have similar fuel requirements as
residential appliances
Note 1 to entry: Commercial applications should not be confused with industrial applications, which can utilize a
much wider array of materials and have vastly different fuel requirements.
4 Symbols and a
...