SIST EN ISO 17827-1:2016

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 17827-1:2016)

This international standard describes method for determination of the the size distribution of particulate biofuels by the
horizontally oscillating screen method. It applies to particulate uncompressed fuels with a nominal top size of 1 mm and
above such as wood chips, hog fuel, olive stones etc. A sample is subjected to sieving through horizontally oscillating
sieves, sorting the particles in decreasing size classes by mechanical means.The sieving operation shall be horizontally
oscillating (one or two dimensional), using an appropriate stroke-frequency according to the type of material. The number of
sieves and the aperture sizes of the sieves shall be chosen according to the size specification of the actual sample material.

Biogene Festbrennstoffe - Bestimmung der Partikelgrößenverteilung für unkomprimierte Brennstoffe - Teil 1: Horizontales Rüttelsiebverfahren (ISO 17827-1:2016)

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 17827-1:2016)

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 - Določevanje porazdelitve velikosti delcev za nestisnjena goriva - 1. del: Metoda z nihajočim sitom z odprtinami 3,15 mm ali več (ISO 17827-1:2016)

Ta mednarodni standard opisuje metodo za določevanje porazdelitve velikosti delcev biogoriv z metodo z vodoravno nihajočim sitom. Uporablja se za nestisnjena goriva z nazivno zrnatostjo vsaj 1 mm, kot so lesni sekanci, drobljenci, olivne koščice itd. Vzorec se preseje skozi vodoravno nihajoča sita, ki mehansko razvrstijo delce po velikosti od največjih do najmanjših. Sejanje mora potekati z vodoravno nihajočim premikanjem (eno- ali dvodimenzionalno) in uporabo ustrezne frekvence sunkov v skladu z vrsto materiala. Število sit in velikosti njihovih odprtin je treba izbrati v skladu s specifikacijo velikosti dejanskega vzorčnega materiala.

General Information

• Status: Published
• Public Enquiry End Date: 29-Apr-2015
• Publication Date: 08-May-2016
• ICS: 75.160.40 - Biofuels
• Technical Committee: AGO - Refuse derived fuel
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 22-Apr-2016
• Due Date: 27-Jun-2016
• Completion Date: 09-May-2016
• Ref Project: EN ISO 17827-1:2016 - 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 17827-1:2016)

Relations

• Replaces: SIST EN 15149-1:2011 - Solid biofuels - Determination of particle size distribution - Part 1: Oscillating screen method using sieve apertures of 1 mm and above
• Effective Date: 01-Jun-2016
• Revised: oSIST prEN ISO 17827-1:2023 - 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)
• Effective Date: 01-Mar-2023

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN ISO 17827-1:2016
01-junij-2016
1DGRPHãþD
SIST EN 15149-1:2011
7UGQDELRJRULYD'RORþHYDQMHSRUD]GHOLWYHYHOLNRVWLGHOFHY]DQHVWLVQMHQDJRULYD
GHO0HWRGD]QLKDMRþLPVLWRP]RGSUWLQDPLPPDOLYHþ,62
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
17827-1:2016)
Biogene Festbrennstoffe - Bestimmung der Partikelgrößenverteilung für unkomprimierte
Brennstoffe - Teil 1: Horizontales Rüttelsiebverfahren (ISO 17827-1:2016)
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 17827-1:2016)
Ta slovenski standard je istoveten z: EN ISO 17827-1:2016
ICS:
75.160.40 Biogoriva Biofuels
SIST EN ISO 17827-1:2016 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN ISO 17827-1:2016

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SIST EN ISO 17827-1:2016


EN ISO 17827-1
EUROPEAN STANDARD

NORME EUROPÉENNE

April 2016
EUROPÄISCHE NORM
ICS 75.160.10; 27.190 Supersedes EN 15149-1:2010
English Version

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
17827-1:2016)
Biocombustibles solides - Détermination de la Biogene Festbrennstoffe - Bestimmung der
distribution granulométrique des combustibles non Partikelgrößenverteilung für unkomprimierte
comprimés - Partie 1: Méthode au tamis oscillant Brennstoffe - Teil 1: Horizontales Rüttelsiebverfahren
d'ouverture de maille égale ou supérieure à 3,15 mm mit Sieben mit einer Lochgröße von 3,15 mm und
(ISO 17827-1:2016) darüber (ISO 17827-1:2016)
This European Standard was approved by CEN on 20 February 2016.

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
© 2016 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 17827-1:2016 E
worldwide for CEN national Members.

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SIST EN ISO 17827-1:2016
EN ISO 17827-1:2016 (E)
Contents Page
European foreword . 3

2

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SIST EN ISO 17827-1:2016
EN ISO 17827-1:2016 (E)
European foreword
This document (EN ISO 17827-1:2016) 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 October 2016, and conflicting national standards shall
be withdrawn at the latest by October 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 15149-1:2010.
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 17827-1:2016 has been approved by CEN as EN ISO 17827-1:2016 without any
modification.
3

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SIST EN ISO 17827-1:2016

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SIST EN ISO 17827-1:2016
INTERNATIONAL ISO
STANDARD 17827-1
First edition
2016-03-01
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
Reference number
ISO 17827-1:2016(E)
©
ISO 2016

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SIST EN ISO 17827-1:2016
ISO 17827-1:2016(E)

COPYRIGHT PROTECTED DOCUMENT
© ISO 2016, 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
the requester.
ISO copyright office
Ch. de Blandonnet 8 • CP 401
CH-1214 Vernier, Geneva, Switzerland
Tel. [phone]
Fax [phone]
[e-mail]
www.iso.org
ii © ISO 2016 – All rights reserved

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SIST EN ISO 17827-1:2016
ISO 17827-1:2016(E)

Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 2
5 Apparatus . 2
6 Sample preparation . 3
6.1 Sample size . 3
6.2 Moisture conditioning . 3
7 Procedure. 4
8 Calculation . 4
9 Performance characteristics . 5
9.1 Repeatability . 5
9.2 Reproducibility . 6
10 Test report . 6
Annex A (normative) Determination of the median value of a particle size distribution .7
Bibliography . 9
© ISO 2016 – All rights reserved iii

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SIST EN ISO 17827-1:2016
ISO 17827-1:2016(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 17827 consists of the following parts under the general title 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
— Part 2: Vibrating screen method using sieves with apertures of 3,15 mm and below
NOTE ISO 17827–2 can also be used for round hole sieves with apertures of 4,0 mm and 5,6 mm.
iv © ISO 2016 – All rights reserved

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SIST EN ISO 17827-1:2016
INTERNATIONAL STANDARD ISO 17827-1:2016(E)
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
1 Scope
This part of ISO 17827 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.
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 3310–2, Test sieves — Technical requirements and testing — Part 2: Test sieves of perforated metal plate
ISO 16559, Solid biofuels — Terminology, definitions and descriptions
ISO 17225–1, Solid biofuels — Fuel specifications and classes — Part 1: General requirements
1)
ISO 17827–2 , Solid biofuels — Determination of particle size distribution for uncompressed fuels — Part
2: Vibrating screen method using sieves with apertures of 3,15 mm and below
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
EN 14778, Solid biofuels — Sampling
EN 14780, Solid biofuels — Sample preparation
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 16559 and the following apply.
3.1
median value of the size distribution
median value [d50] that separates a distribution into two equal parts
Note 1 to entry: Graphically, the median value is the intercept point of the cumulative size distribution curve
with the 50 % horizontal line.
1) To be published.
© ISO 2016 – All rights reserved 1

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SIST EN ISO 17827-1:2016
ISO 17827-1:2016(E)

3.2
sieve fraction
material collected on a sieve
4 Principle
A lab
...

SLOVENSKI STANDARD
oSIST prEN ISO 17827-1:2015
01-april-2015
7UGQDELRJRULYD'RORþHYDQMHSRUD]GHOLWYHYHOLNRVWLGHOFHY]DQHVWLVQMHQDJRULYD
GHO0HWRGD]QLKDMRþLPVLWRP]RGSUWLQDPLPPDOLYHþ,62',6

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 17827-1:2015)
Biogene Festbrennstoffe - Bestimmung der Partikelgrößenverteilung für unkomprimierte
Brennstoffe - Teil 1: Horizontales Rüttelsiebverfahren(ISO/DIS 17827-1:2015)
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 17827-1:2015)
Ta slovenski standard je istoveten z: prEN ISO 17827-1
ICS:
27.190 Biološki viri in drugi Biological sources and
alternativni viri energije alternative sources of energy
75.160.10 Trda goriva Solid fuels
oSIST prEN ISO 17827-1:2015 en,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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oSIST prEN ISO 17827-1:2015

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oSIST prEN ISO 17827-1:2015
DRAFT INTERNATIONAL STANDARD
ISO/DIS 17827-1
ISO/TC 238 Secretariat: SIS
Voting begins on: Voting terminates on:
2015-02-05 2015-05-05
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
Titre manque
ICS: 75.160.10; 27.190
ISO/CEN PARALLEL PROCESSING
This draft has been developed within the International Organization for
Standardization (ISO), and processed under the ISO lead mode of collaboration
as defined in the Vienna Agreement.
This draft is hereby submitted to the ISO member bodies and to the CEN member
bodies for a parallel five month enquiry.
Should this draft be accepted, a final draft, established on the basis of comments
received, will be submitted to a parallel two-month approval vote in ISO and
THIS DOCUMENT IS A DRAFT CIRCULATED
formal vote in CEN.
FOR COMMENT AND APPROVAL. IT IS
THEREFORE SUBJECT TO CHANGE AND MAY
NOT BE REFERRED TO AS AN INTERNATIONAL
STANDARD UNTIL PUBLISHED AS SUCH.
To expedite distribution, this document is circulated as received from the
IN ADDITION TO THEIR EVALUATION AS
committee secretariat. ISO Central Secretariat work of editing and text
BEING ACCEPTABLE FOR INDUSTRIAL,
composition will be undertaken at publication stage.
TECHNOLOGICAL, COMMERCIAL AND
USER PURPOSES, DRAFT INTERNATIONAL
STANDARDS MAY ON OCCASION HAVE TO
BE CONSIDERED IN THE LIGHT OF THEIR
POTENTIAL TO BECOME STANDARDS TO
WHICH REFERENCE MAY BE MADE IN
Reference number
NATIONAL REGULATIONS.
ISO/DIS 17827-1:2014(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 2014

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oSIST prEN ISO 17827-1:2015
ISO/DIS 17827-1:2014(E)

COPYRIGHT PROTECTED DOCUMENT
© 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
Case postale 56 • CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail [e-mail]
Web www.iso.org
Published in Switzerland
ii © ISO 2014 – All rights reserved

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oSIST prEN ISO 17827-1:2015
ISO/DIS 17827-1:2014(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 . 3
5.5 Balance . 3
6 Sample preparation . 3
6.1 Sample size . 3
6.2 Moisture conditioning . 4
7 Procedure. 4
8 Calculation . 5
9 Performance characteristics . 6
9.1 Repeatability . 6
9.2 Reproducibility . 6
10 Test report . 6
Annex A (normative) Determination of the median value of a particle size distribution .8
Bibliography .10
© ISO 2014 – All rights reserved iii

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oSIST prEN ISO 17827-1:2015
ISO/DIS 17827-1:2014(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. 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. 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
ISO 17827-1 is prepared by the Technical Committee ISO/TC 238, Solid biofuels, Working Group WG 4,
Physical and Mechanical Test Methods.
iv © ISO 2014 – All rights reserved

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oSIST prEN ISO 17827-1:2015
ISO/DIS 17827-1:2014(E)

Introduction
Determination of particle size distribution consists of the following parts under the general title 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
Part 2: Vibrating screen method using sieves with apertures of 3,15 mm and below
Note Part 2 can also be used for round hole sieves with apertures of 4,0 and 5,6 mm.
© ISO 2014 – All rights reserved v

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oSIST prEN ISO 17827-1:2015

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oSIST prEN ISO 17827-1:2015
DRAFT INTERNATIONAL STANDARD ISO/DIS 17827-1:2014(E)
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
1 Scope
This document 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 as e.g. wood chips, hog fuel, olive stones etc.
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 16559, Solid biofuels — Terminology, definitions and descriptions
ISO CD 18135 (14778), Solid biofuels – Sampling
ISO CD 14780, Solid biofuels – Sample preparation
ISO/FDIS 18134-1, (14774-1), Solid biofuels – Determination of moisture content – Oven dry method – Part
1: Total moisture – Reference method
ISO/FDIS 18134-2, (14774-2), Solid biofuels – Determination of moisture content – Oven dry method – Part
2: Total moisture – Simplified method
ISO 17225-1, Solid biofuels — Fuel specifications and classes — Part 1: General requirements
ISO/DIS 17827-2, (15149-2), Solid biofuels – Determination of particle size distribution for uncompressed
fuels – Part 2: Vibrating screen method using sieves with apertures of 3,15 mm and below
ISO 3310-2, Test sieves — Technical requirements and testing — Part 2: Test sieves of perforated metal plate
3 Terms and definitions
3.1
Median value of the size distribution
The median value [d50] separates a distribution into two equal parts. Graphically the median value is
the intercept point of the cumulative size distribution curve with the 50-%-horizontal-line
3.2
Nominal top size
Aperture of the sieve where at least 95 % by mass of the material passes (see ISO 16559)
3.3
Test sample
The original sample sent to the laboratory for analysis
© ISO 2014 – All rights reserved 1

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oSIST prEN ISO 17827-1:2015
ISO/DIS 17827-1:2014(E)

3.4
Test portion
The sample extracted from the test sample and used during the analysis
3.5
Sub portion
A portion extracted from the test portion
3.6
Sieve fraction
The material collected on a sieve
Note 1 to entry: For the purpose of this document, the terms and definitions given in ISO 16559 apply.
4 Principle
A test sample is subjected to sieving through horizontally oscillating sieves, sorting the particles in
decreasing size classes by mechanical means.
5 Apparatus
5.1 Sieves
For the test an appropriate number of either circular or rectangular sieves with a minimum effective
2
sieve area of 1200 cm is required. The sieves shall have round perforated holes in metal plate in
accordance with ISO 3310 Part 2. The frame of the sieves shall have a height that enable the sieves to
contain the sample and allows a free movement of the sample during the sieving process.
The number of sieves and the aperture sizes of the sieves shall be chosen in accordance with the size
specification for the actual test sample material (see also ISO 17225‑1)
...