Solid biofuels - Determination of particle size distribution for uncompressed fuels - Part 1: Oscillating screen method using sieves with apertures of 3,15 mm and above (ISO/DIS 17827-1:2022)

ISO 17827-1:2016 specifies a method for the determination of the size distribution of particulate biofuels by the horizontally oscillating screen method. It applies to particulate uncompressed fuels with a nominal top size of 3,15 mm and above, e.g. wood chips, hog fuel, olive stones, etc. The method is intended to characterize material up to a particle size class of P63. For larger P-classes, the characterization is mainly done by hand sorting.

Biogene Festbrennstoffe - Bestimmung der Partikelgrößenverteilung für unkomprimierte Brennstoffe - Teil 1: Horizontales Rüttelsiebverfahren mit Sieben mit einer Lochgröße von 3,15 mm und darüber (ISO/DIS 17827-1:2022)

Biocombustibles solides - Détermination de la distribution granulométrique des combustibles non comprimés - Partie 1: Méthode au tamis oscillant d'ouverture de maille égale ou supérieure à 3,15 mm (ISO/DIS 17827-1:2022)

ISO 17827-1:2016 spécifie une méthode pour la détermination de la distribution granulométrique de biocombustibles particulaires au tamis oscillant dans le plan horizontal. Elle s'applique aux combustibles particulaires non comprimés de dimension supérieure nominale égale ou supérieure à 3,15 mm, tels que les copeaux, les bûchettes, les noyaux d'olive, etc. La méthode a pour but de caractériser les matériaux jusqu'à une classe granulométrique de P63. Pour les classes en P supérieures, la caractérisation se fait essentiellement par tri manuel.

Trdna biogoriva - Določanje porazdelitve velikosti delcev za nekomprimirana goriva - 1. del: Metoda z nihajočim sitom z odprtinami 3,15 mm ali več (ISO/DIS 17827-1:2022)

General Information

Status
Not Published
Public Enquiry End Date
02-Apr-2023
Technical Committee
Current Stage
4020 - Public enquire (PE) (Adopted Project)
Start Date
03-Jan-2023
Due Date
23-May-2023
Completion Date
22-Mar-2023

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SLOVENSKI STANDARD
oSIST prEN ISO 17827-1:2023
01-marec-2023
Trdna biogoriva - Določanje porazdelitve velikosti delcev za nekomprimirana
goriva - 1. del: Metoda z nihajočim sitom z odprtinami 3,15 mm ali več (ISO/DIS
17827-1:2022)
Solid biofuels - Determination of particle size distribution for uncompressed fuels - Part 1:
Oscillating screen method using sieves with apertures of 3,15 mm and above (ISO/DIS
17827-1:2022)
Biogene Festbrennstoffe - Bestimmung der Partikelgrößenverteilung für unkomprimierte
Brennstoffe - Teil 1: Horizontales Rüttelsiebverfahren mit Sieben mit einer Lochgröße
von 3,15 mm und darüber (ISO/DIS 17827-1:2022)
Biocombustibles solides - Détermination de la distribution granulométrique des
combustibles non comprimés - Partie 1: Méthode au tamis oscillant d'ouverture de maille
égale ou supérieure à 3,15 mm (ISO/DIS 17827-1:2022)
Ta slovenski standard je istoveten z: prEN ISO 17827-1
ICS:
75.160.40 Biogoriva Biofuels
oSIST prEN ISO 17827-1:2023 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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oSIST prEN ISO 17827-1:2023

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oSIST prEN ISO 17827-1:2023
DRAFT INTERNATIONAL STANDARD
ISO/DIS 17827-1
ISO/TC 238 Secretariat: SIS
Voting begins on: Voting terminates on:
2022-12-27 2023-03-21
Solid biofuels — Determination of particle size distribution
for uncompressed fuels —
Part 1:
Oscillating screen method using sieves with apertures of
3,15 mm and above
Biocombustibles solides — Détermination de la distribution granulométrique des combustibles non
comprimés —
Partie 1: Méthode au tamis oscillant d'ouverture de maille égale ou supérieure à 3,15 mm
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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NATIONAL REGULATIONS.
ISO/DIS 17827-1:2022(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 2022

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oSIST prEN ISO 17827-1:2023
ISO/DIS 17827-1:2022(E)
DRAFT INTERNATIONAL STANDARD
ISO/DIS 17827-1
ISO/TC 238 Secretariat: SIS
Voting begins on: Voting terminates on:

Solid biofuels — Determination of particle size distribution
for uncompressed fuels —
Part 1:
Oscillating screen method using sieves with apertures of
3,15 mm and above
Biocombustibles solides — Détermination de la distribution granulométrique des combustibles non
comprimés —
Partie 1: Méthode au tamis oscillant d'ouverture de maille égale ou supérieure à 3,15 mm
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 2022
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.
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CH-1214 Vernier, Geneva
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WHICH REFERENCE MAY BE MADE IN
Reference number
Email: copyright@iso.org
NATIONAL REGULATIONS.
Website: www.iso.org ISO/DIS 17827-1:2022(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 2022 – All rights reserved
PROVIDE SUPPORTING DOCUMENTATION. © ISO 2022

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oSIST prEN ISO 17827-1:2023
ISO/DIS 17827-1:2022(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 2
5 Apparatus . 2
5.1 Sieves . 2
5.2 Collecting pan . 2
5.3 Weighing containers . 2
5.4 Mechanical sieving equipment . 2
5.5 Balance . 3
6 Sample preparation .3
6.1 Sample size . 3
6.2 Moisture conditioning. 4
7 Procedure .4
8 Calculation . 4
9 Performance characteristics . 5
10 Test report . 5
Bibliography . 7
iii
© ISO 2022 – All rights reserved

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oSIST prEN ISO 17827-1:2023
ISO/DIS 17827-1:2022(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 17827-1:2016), which has been technically
revised. The main changes are as follows:
a) The 8-mm-sieve was removed from the set of sieves.
b) The table of results was completely modified.
c) The calculation of median value (Annex) was deleted.
d) Precision requirements were deleted.
e) References were updated.
f) An introduction was added.
g) Redundant explanations were deleted.
h) Editorial changes were made.
A list of all parts in the ISO 17827 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 2022 – All rights reserved

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oSIST prEN ISO 17827-1:2023
ISO/DIS 17827-1:2022(E)
Introduction
Particle size and size distribution of uncompressed solid biofuels significantly influence the transport,
handling and combustion properties of solid fuels. Depending on the type of fuel feeding and the type
and size of a conversion plant, fuels of different particle sizes are suitable. Of particular interest are also
the fines fraction and oversized particles. An increased content of fine particles can lead to clogging
in feed systems and unsteady combustion. Oversized particles can block conveying systems or cause
bridging problems in silos and can reduce the bulk density of the fuel. Very fine particles can have
negative health effects and are relevant for explosion protection reasons (< 0,5 mm).
ISO 17827, describing the determination of particle size distribution, consists of the following parts
under the general title Solid biofuels - Determi
...

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