EN ISO 20566:2013

SLOVENSKI STANDARD
01-september-2013
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SIST EN ISO 20566:2007
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Paints and varnishes - Determination of the scratch resistance of a coating system using
a laboratory-scale car-wash (ISO 20566:2013)
Beschichtungsstoffe - Bestimmung der Kratzbeständigkeit von Beschichtungen mit einer
Laborwaschanlage (ISO 20566:2013)
Peintures et vernis - Détermination de la résistance à la rayure d'un système de peinture
sur un poste de lavage automobile de laboratoire (ISO 20566:2013)
Ta slovenski standard je istoveten z: EN ISO 20566:2013
ICS:
43.020 Cestna vozila na splošno Road vehicles in general
87.040 Barve in laki Paints and varnishes
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN ISO 20566
NORME EUROPÉENNE
EUROPÄISCHE NORM
February 2013
ICS 43.020; 87.040 Supersedes EN ISO 20566:2006
English Version
Paints and varnishes - Determination of the scratch resistance
of a coating system using a laboratory-scale car-wash (ISO
20566:2013)
Peintures et vernis - Détermination de la résistance à la Beschichtungsstoffe - Bestimmung der Kratzbeständigkeit
rayure d'un système de peinture sur un poste de lavage von Beschichtungen mit einer Labor-
automobile de laboratoire (ISO 20566:2013) Automobilwaschanlage (ISO 20566:2013)
This European Standard was approved by CEN on 9 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 20566:2013: E
worldwide for CEN national Members.

Contents Page
Foreword .3

Foreword
This document (EN ISO 20566:2013) has been prepared by Technical Committee ISO/TC 35 "Paints and
varnishes" in collaboration with Technical Committee CEN/TC 139 “Paints and varnishes” the secretariat of
which is held by DIN.
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 20566:2006.
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 20566:2013 has been approved by CEN as EN ISO 20566:2013 without any modification.

INTERNATIONAL ISO
STANDARD 20566
Second edition
2013-02-15
Paints and varnishes —
Determination of the scratch
resistance of a coating system using a
laboratory-scale car-wash
Peintures et vernis — Détermination de la résistance à la rayure d’un
système de peinture sur un poste de lavage automobile de laboratoire
Reference number
ISO 20566:2013(E)
©
ISO 2013
ISO 20566:2013(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
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Tel. + 41 22 749 01 11
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E-mail copyright@iso.org
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Published in Switzerland
ii © ISO 2013 – All rights reserved

ISO 20566:2013(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Apparatus . 2
5 Washing suspension . 3
6 Sampling . 4
7 Test panels . 4
8 Procedure. 4
9 Evaluation . 5
10 Precision . 5
10.1 Repeatability limit r .5
10.2 Reproducibility limit R .5
11 Test report . 5
Annex A (normative) Verification and calibration of the washing equipment .7
ISO 20566:2013(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 20566 was prepared by Technical Committee ISO/TC 35, Paints and varnishes, Subcommittee SC 9,
General test methods for paints and varnishes.
This second edition cancels and replaces the first edition (ISO 20566:2005), which has been technically
revised. The main changes are:
a) a “terms and definitions” clause has been added, defining the terms mar, scratch, double pass, test
area and reflow effect;
b) tolerances have been added to all key numerical values, such as dimensions;
c) the spread of the spray jet has been changed from 60° to 65°;
d) the thickness of the test panels has been specified;
e) the test procedure has been described in more detail;
f) a visual examination of the test panels has been added.
iv © ISO 2013 – All rights reserved

ISO 20566:2013(E)
Introduction
With this test procedure, it is important to note that the test results will not, over time, remain constant,
as a result of changes to the brush material. As the brush ages, the test will become more severe. As
a result, the test procedure is suitable only for comparative tests carried out at any one time and
using relatively short runs. Readings obtained using equipment which has accumulated different total
numbers of operating hours are not comparable with each other.
INTERNATIONAL STANDARD ISO 20566:2013(E)
Paints and varnishes — Determination of the scratch
resistance of a coating system using a laboratory-scale car-
wash
1 Scope
This International Standard describes a test procedure for assessing the scratch resistance of organic
1)
paint coatings , in particular paint coatings used in the automotive industry (i.e. for assessing their car-
wash resistance). Machine-based washing is simulated in the laboratory environment using a rotating
brush and synthetic dirt. The test conditions have been designed to be as close as possible to the real
conditions in a car-wash. If the test parameters are suitably chosen, the method can also be used for
testing protective plastics films and plastics components.
2 Normative references
The following referenced documents are indispensable for the application 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 1513, Paints and varnishe
...