EN ISO 17831-2:2015

SLOVENSKI STANDARD
01-marec-2016
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SIST EN 15210-2:2011
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Solid biofuels - Determination of mechanical durability of pellets and briquettes - Part 2:
Briquettes (ISO 17831-2:2015)
Feste Biobrennstoffe - Bestimmung der mechanischen Festigkeit von Pellets und Briketts
- Teil 2: Briketts (ISO 17831-2:2015)
Biocombustibles solides - Détermination de la résistance mécanique des granulés et des
briquettes - Partie 2: Briquettes (ISO 17831-2:2015)
Ta slovenski standard je istoveten z: EN ISO 17831-2:2015
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.

EN ISO 17831-2
EUROPEAN STANDARD
NORME EUROPÉENNE
December 2015
EUROPÄISCHE NORM
ICS 75.160.10; 27.190 Supersedes EN 15210-2:2010
English Version
Solid biofuels - Determination of mechanical durability of
pellets and briquettes - Part 2: Briquettes (ISO 17831-
2:2015)
Biocombustibles solides - Détermination de la Feste Biobrennstoffe - Bestimmung der mechanischen
résistance mécanique des granulés et des briquettes - Festigkeit von Pellets und Briketts - Teil 2: Briketts
Partie 2: Briquettes (ISO 17831-2:2015) (ISO 17831-2:2015)
This European Standard was approved by CEN on 27 November 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 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
© 2015 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 17831-2:2015 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
This document (EN ISO 17831-2:2015) 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 standard, either by publication of an
identical text or by endorsement, at the latest by June 2016, and conflicting national standards shall be
withdrawn at the latest by June 2016.
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 15210-2:2010.
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 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 17831-2:2015 has been approved by CEN as EN ISO 17831-2:2015 without any
modification.
INTERNATIONAL ISO
STANDARD 17831-2
First edition
2015-12-15
Solid biofuels — Determination of
mechanical durability of pellets and
briquettes —
Part 2:
Briquettes
Biocombustibles solides — Détermination de la résistance mécanique
des granulés et des briquettes —
Partie 2: Briquettes
Reference number
ISO 17831-2:2015(E)
©
ISO 2015
ISO 17831-2:2015(E)
© ISO 2015, Published in Switzerland
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
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Tel. +41 22 749 01 11
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copyright@iso.org
www.iso.org
ii © ISO 2015 – All rights reserved

ISO 17831-2:2015(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 1
5 Apparatus . 2
5.1 Briquette tester. 2
5.2 Sieve . 3
5.3 Balance . 3
6 Test sample preparation . 3
7 Procedure. 4
7.1 Tumbling procedure . 4
7.2 Sieving procedure . 4
8 Calculation of the mechanical durability . 5
9 Performance characteristics . 5
10 Test report . 5
Bibliograpy . 6
ISO 17831-2:2015(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 17831 consists of the following parts under the general title Solid Biofuels — Determination of
mechanical durability of pellets and briquettes:
— Part 1: Pellets
— Part 2: Briquettes
iv © ISO 2015 – All rights reserved

ISO 17831-2:2015(E)
Introduction
Compressed solid biomass fuel is usually assigned to either pellets or briquettes, of which pellets
usually have a diameter below 25 mm, while for briquettes, the diameter is higher (see ISO 17225-1).
To account for the different particle dimensions, it was necessary to define different test apparatuses.
INTERNATIONAL STANDARD ISO 17831-2:2015(E)
Solid biofuels — Determination of mechanical durability of
pellets and briquettes —
Part 2:
Briquettes
1 Scope
This part of ISO 17831 defines a method for determining the mechanical durability of briquettes.
The mechanical durability is a measure of the resistance of compressed fuels towards shocks and/or
abrasion as a consequence of handling and transportation.
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.
ISO 3310-1, Test sieves — Technical requirements and testing — Part 1: Test sieves of metal wire cloth
1)
ISO 14780, Solid biofuels — Sample preparation
ISO 16559, Solid biofuels — Terminology, definitions and descriptions
ISO 18134-1, Solid biofuels — Determination of moisture content — Oven dry method — Part 1: Total
moisture — Reference method
ISO 18134-2, Solid biofuels — Determination of moisture content — Oven dry method — Part 2: Total
moisture — Simplified method
1)
ISO 18135, Solid Biofuels — Sampling
3 Terms and definitions
For the purpose of this document, the terms and definitions given in ISO 16559 apply.
4 Principle
The test portion is subjected to controlled shocks by collision of briquettes against each other and
against the walls of a specified rotating test chamber. The durability is calculated from the mass of the
sample remaining after separation of abraded and fine broken particles.
1) In preparation.
...