EN ISO 17225-6:2021
(Main)Solid biofuels - Fuel specifications and classes - Part 6: Graded non-woody pellets (ISO 17225-6:2021)
Solid biofuels - Fuel specifications and classes - Part 6: Graded non-woody pellets (ISO 17225-6:2021)
This document determines the fuel quality classes and specifications of graded non-woody pellets. This document covers only non-woody pellets produced from the following raw material (see ISO 17225‑1:2021, Table 1):
— 2 Herbaceous biomass
— 3 Fruit biomass
— 4 Aquatic biomass
— 5 Biomass blends and mixtures
NOTE 1 Herbaceous biomass originates from plants that have a non-woody stem 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.
NOTE 2 Blends and mixtures include blends and mixtures from the main origin-based solid biofuel groups woody biomass, 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 17225‑1:2021, Table 1.
If solid biofuel blend 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 document.
Biogene Festbrennstoffe - Brennstoffspezifikationen und -klassen - Teil 6: Klassifizierung von nicht-holzartigen Pellets (ISO 17225-6:2021)
Dieses Dokument legt die qualitätsbezogenen Brennstoffklassen und spezifikationen für klassifizierte nicht holzartige Pellets fest. Dieses Dokument umfasst nur nicht-holzartige Pellets, die aus folgenden Rohmaterialien hergestellt wurden (siehe ISO 17225-1:2021, Tabelle 1):
- 2 Halmgutartige Biomasse;
- 3 Biomasse von Früchten;
- 4 Aquatische Biomasse;
- 5 Definierte und undefinierte Mischungen von Biomasse.
ANMERKUNG 1 Halmgutartige Biomasse stammt von Pflanzen mit einem nicht verholzten Stängel, die am Ende der Wachstumssaison absterben. Dazu gehören Getreide oder Saatgutpflanzen aus der Lebensmittel herstellenden oder verarbeitenden Industrie und deren Nebenprodukte, wie z. B. Getreide.
ANMERKUNG 2 Definierte und undefinierte Mischungen umfassen definierte und undefinierte Mischungen aus den auf der Herkunft beruhenden Hauptgruppen biogener Festbrennstoffe: holzartige Biomasse, halmgutartige Biomasse, Biomasse von Früchten und aquatische Biomasse.
Definierte Mischungen sind absichtlich gemischte biogene Brennstoffe, während undefinierte Mischungen zufällig gemischte biogene Brennstoffe sind. Die Herkunft der definierten und undefinierten Mischungen ist unter Anwendung von ISO 17225 1:2021, Tabelle 1, zu beschreiben.
Wenn eine definierte oder undefinierte Mischung von biogenen Festbrennstoffen chemisch behandeltes Material enthält, muss dies angegeben werden.
ANMERKUNG 3 Thermisch behandelte Biomassepellets (z. B. torrefizierte Pellets) fallen nicht in den Anwendungsbereich dieses Dokuments.
Biocombustibles solides - Classes et spécifications des combustibles - Partie 6: Classes de granulés d'origine agricole (ISO 17225-6:2021)
Le présent document détermine les classes et spécifications de qualité du combustible pour les granulés d'origine agricole. Le présent document couvre uniquement les granulés d'origine agricole produits à partir des matières premières suivantes (voir ISO 17225-1:2021, Tableau 1):
— 2 Biomasse herbacée;
— 3 Biomasse fruitière;
— 4 Biomasse aquatique;
— 5 Assortiments et mélanges de biomasses.
NOTE 1 La biomasse herbacée provient de plantes à tiges non ligneuses et qui se fanent à la fin de la saison de croissance. Cela comprend la culture de graines ou de semences issues de l'industrie de production ou de transformation alimentaire et leurs co-produits tels que les céréales.
NOTE 2 Le groupe Assortiments et mélanges comprend les assortiments et mélanges issus des principaux groupes de biocombustibles solides provenant des biomasses ligneuse, herbacée, fruitière et aquatique.
Les assortiments résultent du mélange intentionnel de différents biocombustibles, tandis que les mélanges résultent d'une association non intentionnelle de différents biocombustibles. L'origine de l'assortiment et du mélange doit être décrite à l'aide du Tableau 1 de l'ISO 17225-1:2021.
Si l'assortiment ou le mélange de biocombustibles solides contient des matériaux traités chimiquement, cela doit être mentionné.
NOTE 3 Les granulés de biomasse traités thermiquement (par exemple, les granulés torréfiés) ne sont pas couverts par le présent document.
Trdna biogoriva - Specifikacije goriv in razredi - 6. del: Razvrščeni nelesni peleti (ISO 17225-6:2021)
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
01-oktober-2021
Nadomešča:
SIST EN ISO 17225-6:2014
Trdna biogoriva - Specifikacije goriv in razredi - 6. del: Razvrščeni nelesni peleti
(ISO 17225-6:2021)
Solid biofuels - Fuel specifications and classes - Part 6: Graded non-woody pellets (ISO
17225-6:2021)
Biogene Festbrennstoffe - Brennstoffspezifikationen und -klassen - Teil 6: Klassifizierung
von nicht-holzartigen Pellets (ISO 17225-6:2021)
Biocombustibles solides - Classes et spécifications des combustibles - Partie 6: Classes
de granulés d'origine agricole (ISO 17225-6:2021)
Ta slovenski standard je istoveten z: EN ISO 17225-6:2021
ICS:
75.160.40 Biogoriva Biofuels
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EN ISO 17225-6
EUROPEAN STANDARD
NORME EUROPÉENNE
July 2021
EUROPÄISCHE NORM
ICS 27.190; 75.160.40 Supersedes EN ISO 17225-6:2014
English Version
Solid biofuels - Fuel specifications and classes - Part 6:
Graded non-woody pellets (ISO 17225-6:2021)
Biocombustibles solides - Classes et spécifications des Biogene Festbrennstoffe - Brennstoffspezifikationen
combustibles - Partie 6: Classes de granulés d'origine und -klassen - Teil 6: Klassifizierung von nicht-
agricole (ISO 17225-6:2021) holzartigen Pellets (ISO 17225-6:2021)
This European Standard was approved by CEN on 12 June 2021.
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, Republic of North Macedonia, Romania, Serbia, 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: Rue de la Science 23, B-1040 Brussels
© 2021 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 17225-6:2021 E
worldwide for CEN national Members.
Contents Page
European foreword . 3
European foreword
This document (EN ISO 17225-6:2021) 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 January 2022, and conflicting national standards shall
be withdrawn at the latest by January 2022.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN ISO 17225-6:2014.
Any feedback and questions on this document should be directed to the users’ national standards
body/national committee. A complete listing of these bodies can be found on the CEN websites.
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, Republic of
North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the
United Kingdom.
Endorsement notice
The text of ISO 17225-6:2021 has been approved by CEN as EN ISO 17225-6:2021 without any
modification.
INTERNATIONAL ISO
STANDARD 17225-6
Second edition
2021-07
Solid biofuels — Fuel specifications
and classes —
Part 6:
Graded non-woody pellets
Biocombustibles solides — Classes et spécifications des
combustibles —
Partie 6: Classes de granulés d'origine agricole
Reference number
ISO 17225-6:2021(E)
©
ISO 2021
ISO 17225-6:2021(E)
© ISO 2021
All rights reserved. Unless otherwise specified, or required in the context of its implementation, 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
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Email: copyright@iso.org
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Published in Switzerland
ii © ISO 2021 – All rights reserved
ISO 17225-6:2021(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
4 Symbols and abbreviated terms . 3
5 Specification of graded non-woody pellets . 3
Bibliography . 7
ISO 17225-6:2021(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 of the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO's adherence to the
World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT), see www .iso .org/
iso/ foreword .html.
This document was prepared by Technical Committee ISO/TC 238, Solid biofuels.
This second edition cancels and replaces the first edition (ISO 17225-6:2014), which has been technically
revised. The main changes compared to the previous edition are as follows:
— Arsenic and chlorine values changed in Class B
— Ash melting behaviour added as an informative property
— Specification of pellets produced from cereal straw, miscanthus and reed canary grass has been
included in Table 1.
A list of all parts in the ISO 17225 series can be found on the ISO website.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www .iso .org/ members .html.
iv © ISO 2021 – All rights reserved
ISO 17225-6:2021(E)
Introduction
The objective of the ISO 17225 series is to provide unambiguous 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 and reporting.
This document supports the use of graded non-woody pellets in specially designed appliances 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 appliances 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
Non-woody pellets have high ash, chlorine (Cl), nitrogen (N) and sulfur (S) 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.
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. Be aware that herbaceous
or fruit biomass may influence the fuel ash composition differently depending on growth and soil
conditions. This may result in fouling, slagging and corrosion inside boilers. These problems are
especially related to materials that have high content of potassium (K) and silicate (Si) and low content
of calcium (Ca). The content of chlorine (Cl), phosphate (P) and potassium (K) in the material may form
chlorides and phosphorous and other chemical compounds resulting in high hydrochloric emissions
and chemically active ash causing corrosion. Special attention should be paid to the risk of corrosion in
small and medium scale boilers and flue gas systems. Blending with woody biomass can improve the
combustion characteristics.
NOTE For individual contracts ISO 17225-1 can be used.
Although this document may be obtained separately, it requires 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 this document.
INTERNATIONAL STANDARD ISO 17225-6:2021(E)
Solid biofuels — Fuel specifications and classes —
Part 6:
Graded non-woody pellets
1 Scope
This document determines the fuel quality classes and specifications of graded non-woody pellets.
This document covers only non-woody pellets produced from the following raw material (see
ISO 17225-1:2021, Table 1):
— 2 Herbaceous biomass
— 3 Fruit biomass
— 4 Aquatic biomass
— 5 Biomass blends and mixtures
NOTE 1 Herbaceous biomass originates from plants that have a non-woody stem 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.
NOTE 2 Blends and mixtures include blends and mixtures from the main origin-based solid biofuel groups
woody biomass, 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 17225-1:2021, Table 1.
If solid biofuel blend 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
document.
2 Normative references
The following documents ar
...
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