oSIST prEN ISO 17830:2023

SLOVENSKI STANDARD
oSIST prEN ISO 17830:2023
01-marec-2023
Trdna biogoriva - Določanje porazdelitve velikosti delcev peletiziranih materialov
(ISO/DIS 17830:2023)
Solid biofuels - Particle size distribution of disintegrated pellets (ISO/DIS 17830:2023)
Biogene Festbrennstoffe - Partikelgrößenverteilung von Pellet-Ausgangsmaterial
(ISO/DIS 17830:2023)
Biocombustibles solides - Distribution granulométrique des granulés désintégrés
(ISO/DIS 17830:2023)
Ta slovenski standard je istoveten z: prEN ISO 17830
ICS:
75.160.40 Biogoriva Biofuels
oSIST prEN ISO 17830:2023 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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oSIST prEN ISO 17830:2023

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oSIST prEN ISO 17830:2023
DRAFT INTERNATIONAL STANDARD
ISO/DIS 17830
ISO/TC 238 Secretariat: SIS
Voting begins on: Voting terminates on:
2023-01-03 2023-03-28
Solid biofuels — Particle size distribution of disintegrated
pellets
Biocombustibles solides — Détermination de la distribution granulométrique des granulés désintégrés
ICS: 75.160.40; 27.190
This document is circulated as received from the committee secretariat.
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENT AND APPROVAL. IT IS
ISO/CEN PARALLEL PROCESSING
THEREFORE SUBJECT TO CHANGE AND MAY
NOT BE REFERRED TO AS AN INTERNATIONAL
STANDARD UNTIL PUBLISHED AS SUCH.
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BEING ACCEPTABLE FOR INDUSTRIAL,
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STANDARDS MAY ON OCCASION HAVE TO
BE CONSIDERED IN THE LIGHT OF THEIR
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Reference number
NATIONAL REGULATIONS.
ISO/DIS 17830:2023(E)
RECIPIENTS OF THIS DRAFT ARE INVITED
TO SUBMIT, WITH THEIR COMMENTS,
NOTIFICATION OF ANY RELEVANT PATENT
RIGHTS OF WHICH THEY ARE AWARE AND TO
PROVIDE SUPPORTING DOCUMENTATION. © ISO 2023

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oSIST prEN ISO 17830:2023
ISO/DIS 17830:2023(E)
DRAFT INTERNATIONAL STANDARD
ISO/DIS 17830
ISO/TC 238 Secretariat: SIS
Voting begins on: Voting terminates on:

Solid biofuels — Particle size distribution of disintegrated
pellets
Biocombustibles solides — Détermination de la distribution granulométrique des granulés désintégrés
ICS: 75.160.40; 27.190
This document is circulated as received from the committee secretariat.
COPYRIGHT PROTECTED DOCUMENT
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENT AND APPROVAL. IT IS
© ISO 2023
ISO/CEN PARALLEL PROCESSING
THEREFORE SUBJECT TO CHANGE AND MAY
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
NOT BE REFERRED TO AS AN INTERNATIONAL
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on STANDARD UNTIL PUBLISHED AS SUCH.
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
IN ADDITION TO THEIR EVALUATION AS
or ISO’s member body in the country of the requester. BEING ACCEPTABLE FOR INDUSTRIAL,
TECHNOLOGICAL, COMMERCIAL AND
ISO copyright office
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CP 401 • Ch. de Blandonnet 8
STANDARDS MAY ON OCCASION HAVE TO
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CH-1214 Vernier, Geneva
POTENTIAL TO BECOME STANDARDS TO
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WHICH REFERENCE MAY BE MADE IN
Reference number
Email: copyright@iso.org
NATIONAL REGULATIONS.
Website: www.iso.org ISO/DIS 17830:2022(E)
RECIPIENTS OF THIS DRAFT ARE INVITED
Published in Switzerland
TO SUBMIT, WITH THEIR COMMENTS,
NOTIFICATION OF ANY RELEVANT PATENT
RIGHTS OF WHICH THEY ARE AWARE AND TO
ii
  © ISO 2023 – All rights reserved
PROVIDE SUPPORTING DOCUMENTATION. © ISO 2022

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oSIST prEN ISO 17830:2023
ISO/DIS 17830:2022(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 1
5 Reagents . 1
6 Apparatus . 2
6.1 Disintegration container . 2
6.2 Electric kettle or other suitable equipment for water heating . 2
6.3 Drying cabinet or oven . 2
6.4 Drying containers . 2
6.5 Balance. . 2
6.6 Sieves . 2
6.7 Weighing containers . 2
6.8 Spoon . 2
6.9 Mechanical sieving equipment . 2
6.10 Flat surfaced tool, or flat brush . 3
7 Sample preparation .3
8 Procedure .3
8.1 Disintegration . 3
8.2 Drying . 3
8.3 Division of the test portion . 4
8.4 Moisture conditioning. 4
8.5 Sieving . 5
9 Calculation . 5
10 Performance characteristics . 7
11 Test report . 7
Annex A (informative) Characteristics on determination of particle size distribution of
material within pellets in accordance with the 2007 inter-comparison study.8
Bibliography . 9
iii
© ISO 2022 – All rights reserved

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oSIST prEN ISO 17830:2023
ISO/DIS 17830:2022(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 238, Solid biofuels.
This second edition cancels and replaces the first edition (ISO 17830:2015), which has been technically
revised. The main changes are as follows:
a) The set of suggested sieves was modified to better reflect industry practice and to be consistent
with ISO 17827-2.
b) A specific table for the results of size distribution analysis for quality control of pellets for industrial
use was added. The order of sieves was reversed to align with other standards.
c) A figure was added to show the sample division.
d) Details were added to clarify the procedure and to improve the accuracy.
e) The normative references were updated and amended.
f) Editorial changes were made.
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
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oSIST prEN ISO 17830:2023
ISO/DIS 17830:2022(E)
Introduction
In power plants with powder fuel burners for energy production, the operators need information
about the particle size distribution of the fuel for optimising particle burnout during combustion. Fuel
preparation equipment, such as pulverizers, are used for crushing pellets into the original particle sizes
before the material was pressed into pellets. The method described in this International Standard is
intended to characterize particle size distribution of the material contained within fuel pellets and also
allows for a relative comparison of pellets of different manufacturing.
This method is based on experience with pellets made from sawdust, wood shavings and milled wood,
as well as straw. The method may also be applicable for pellets produced from other solid biofuel
materials provided that they can be disintegrated into its constituents in water.
Pellets that are engineered to resist water, e.g. pellets from materials which have undergone some
thermal treatments, cannot be characterised by this method.
v
© ISO 2022 – All rights reserved

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oSIST prEN ISO 17830:2023

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oSIST prEN ISO 17830:2023
DRAFT INTERNATIONAL STANDARD ISO/DIS 17830:2022(E)
Solid biofuels — Particle size distribution of disintegrated
pellets
1 Scope
This International Standard aims to define the requirements and method used to determine particle
size distribution of disintegrated pellets. It is applicable for pellets that fully disintegrate in hot water.
2 Normative references
The following documents are referred to in the text in such a way that some or all 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 16559, Solid biofuels — Vocabulary
ISO 17827-2, Solid biofuels — Determination of particle size distribution for uncompressed fuels — Part 2:
Vibrating screen using sieves for classification of samples with apertures of 3,15 mm and below
ISO 18134-1, Solid biofuels — Determination of moisture content — Part 1: Reference method
ISO 18134-2, Solid biofuels — Determination of moisture content — Oven dry method — Part 2: Total
moisture — Simplified method
ISO 18135, Solid Biofuels — Sampling
ISO 21945, Solid biofuels — Simplified sampling method for small scale applications
ISO 14780, Solid biofuels — Sample preparation
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 16559 apply.
ISO maintains terminology databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https:// www .iso .org/ obp
3.1
sieve fraction
mass fraction of test portion or sub-portion collected on a sieve after particle separation through the
sieving process.
4 Principle
The particle size distribution is determined after the sample pellets have been disintegrated in hot
deionised w
...