EN ISO 21182:2013

SLOVENSKI STANDARD
01-junij-2013
1DGRPHãþD
SIST EN ISO 21182:2007
1DSUDYH]DNRQWLQXLUQLWUDQVSRUW/DKNLWUDNRYLWUDþQLKWUDQVSRUWHUMHY
8JRWDYOMDQMHNRHILFLHQWDWUHQMD,62
Light conveyor belts - Determination of the coefficient of friction (ISO 21182:2013)
Courroies transporteuses légères - Détermination du coefficient de frottement (ISO
21182:2013)
Ta slovenski standard je istoveten z: EN ISO 21182:2013
ICS:
53.040.10 Transporterji Conveyors
53.040.20 Deli za transporterje Components for conveyors
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN ISO 21182
NORME EUROPÉENNE
EUROPÄISCHE NORM
February 2013
ICS 53.040.10 Supersedes EN ISO 21182:2006
English Version
Light conveyor belts - Determination of the coefficient of friction
(ISO 21182:2013)
Courroies transporteuses légères - Détermination du
coefficient de frottement (ISO 21182:2013)
This European Standard was approved by CEN on 12 February 2013.

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

Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2013 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 21182:2013: E
worldwide for CEN national Members.

Contents Page
Foreword . 3

Foreword
This document (EN ISO 21182:2013) has been prepared by Technical Committee ISO/TC 41 "Pulleys and
belts (including veebelts)" in collaboration with Technical Committee CEN/TC 188 “Conveyor belts” the
secretariat of which is held by SNV.
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 August 2013, and conflicting national standards shall be withdrawn at
the latest by August 2013.
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 ISO 21182:2006.
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 21182:2013 has been approved by CEN as EN ISO 21182:2013 without any modification.

INTERNATIONAL ISO
STANDARD 21182
Second edition
2013-02-15
Light conveyor belts — Determination
of the coefficient of friction
Courroies transporteuses légères — Détermination du coefficient
de frottement
Reference number
ISO 21182:2013(E)
©
ISO 2013
ISO 21182:2013(E)
© ISO 2013
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 copyright@iso.org
Web www.iso.org
Published in Switzerland
ii © ISO 2013 – All rights reserved

ISO 21182:2013(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 2
4.1 Dynamic coefficient of friction . 2
4.2 Static coefficient of friction . 2
5 Apparatus (see Figure 2) . 2
6 Test piece . 3
6.1 Test piece material . 3
6.2 Number and dimensions of test pieces . 3
6.3 Conditioning . 4
7 Procedure. 6
8 Calculation and expression of results . 6
8.1 Dynamic friction, μ .
D 6
8.2 Static friction μ . .
S 7
8.3 Examples for recorded graph of μ (force/path diagrams) . 7
S
9 Test report . 9
Bibliography .10
ISO 21182:2013(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.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International
Standards adopted by the technical committees are circulated to the member bodies for voting.
Publication as an International Standard requires approval by at least 75 % of the member bodies
casting a vote.
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.
ISO 21182 was prepared by Technical Committee ISO/TC 41, Pulleys and belts (including veebelts),
Subcommittee SC 3, Conveyor belts.
This International Standard is based on EN 1724:1998, prepared by CEN/TC 188.
This second edition cancels and replaces the first edition (ISO 21182:2005), of which it constitutes a
minor revision.
iv © ISO 2013 – All rights reserved

ISO 21182:2013(E)
Introduction
The coefficient of friction of light conveyor belts has to be seen from two different aspects relevant to the
choice of the reference material. One aspect is the friction of the underside of the belt. In practice, this is
not critical because it is low. Regardless of whether a table of steel or of wood is used, the coefficient of
friction is within the range from 0,2 to 0,3 in most cases.
Contrary to this, the top face covers show values over an extended range dependent on their actual
function. To achieve this function, the material itself can be modified as well as the surface pattern but
the test procedure is the same in every case. So it becomes clear that the chosen steel panel represents
a compromise. Its main properties are reproducibility of the surface finish and uncritical friction
behaviour against any kind of belt cover.
This International Standard allows comparison of all kinds of conveyor belt to obtain reliable results
as a reference. This can be helpful to buyers who need guidance in choosing the right belt for their
particular application.
The tests in accordance with this International Standard are limited to dynamic coefficients of friction
(μ ) up to 1,0 and static coefficients of friction (μ ) up to 1,5. Higher values can show a mixture of
D S
friction, adhesion, deformation and other effects occurring, especially where the surface texture is
coarse and is therefore unsuitable for this test.
The method using the standardized metallic test panel is intended especially to compare the coefficients
of friction of different light conveyor belts. The values received under practice conditions always depend
on the frictional partners.
To determine these effects, it is possible to choose a different frictional partner instead of the panel if
required. This is mentioned in the test report.
INTERNATIONAL STANDARD ISO 21182:2013(E)
Light conveyor belts — Determination of the coefficient of
friction
1 Scope
This International Standard specifies test methods for determining the dynamic and static coefficients
of friction for light conveyor belts according to ISO 21183-1.
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 3574, Cold-reduced carbon steel sheet of commercial and drawing qualities
ISO 4287, Geometrical Product Specifications (GPS) — Surface texture: Profile method — Terms, definitions
and surface texture parameters
ISO 7500-1, Metallic materials — Verification of static uniaxial testing machines — Part 1: Tension/compression
testing machines — Verification and calibration of the force-measuring system
ISO 18573, Conveyor belts — Test atmospheres and conditioning periods
ISO 21183-1, Light conveyor belts — Part 1: Principal
...