Paints and varnishes - Determination of the scratch resistance of a coating system using a laboratory-scale car-wash (ISO 20566:2020)

This document specifies a test procedure for assessing the scratch resistance of organic paint
coatings, in particular paint coatings used in the automotive industry (i.e. for assessing their carwash
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

Beschichtungsstoffe - Bestimmung der Kratzbeständigkeit von Beschichtungen mit einer Labor-Automobilwaschanlage (ISO 20566:2020)

Dieses Dokument legt ein Prüfverfahren zum Beurteilen der Kratzfestigkeit von organischen Beschichtun¬gen fest, insbesondere von Beschichtungen die in der Automobilindustrie verwendet werden (d. h. zum Beurteilen der Beständigkeit in Waschanlagen). Im Labor wird die maschinelle Fahrzeugreinigung mit rotierenden Bürsten unter Verwendung von synthetischem Schmutz simuliert. Dabei orientieren sich die hier fest¬gelegten Prüfbedingungen weitestgehend an den Verhältnissen in einer Autowaschanlage. Das Verfahren ist auch für Kunststofffolien und Kunststoff-Anbauteile anwendbar, wenn die Prüfparameter entsprechend gewählt werden.

Peintures et vernis - Détermination de la résistance à la rayure d'un système de peinture sur un poste de lavage automobile de laboratoire (ISO 20566:2020)

Le présent document spécifie une méthode d'essai permettant d'évaluer la résistance à la rayure des systèmes de peinture organiques, et plus particulièrement des surfaces peintes pour l'industrie automobile (résistance sur un poste de lavage automobile). Un lavage mécanique effectué à l'aide de brosses rotatives est simulé en laboratoire en utilisant une boue synthétique. Les conditions d'essai ont été conçues de manière à se rapprocher le plus possible des conditions réelles d'un poste de lavage automobile. Si les paramètres d'essai sont adaptés, la méthode d'essai peut également être appliquée pour évaluer des feuilles plastiques.

Barve in laki - Ugotavljanje odpornosti premaznega sistema proti razenju s pomočjo visokotlačnega pranja v laboratoriju (ISO 20566:2020)

General Information

Status
Published
Public Enquiry End Date
03-Nov-2019
Publication Date
08-Mar-2021
Technical Committee
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
04-Mar-2021
Due Date
09-May-2021
Completion Date
09-Mar-2021

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SLOVENSKI STANDARD
SIST EN ISO 20566:2021
01-april-2021
Nadomešča:
SIST EN ISO 20566:2013
Barve in laki - Ugotavljanje odpornosti premaznega sistema proti razenju s
pomočjo visokotlačnega pranja v laboratoriju (ISO 20566:2020)

Paints and varnishes - Determination of the scratch resistance of a coating system using

a laboratory-scale car-wash (ISO 20566:2020)

Beschichtungsstoffe - Bestimmung der Kratzbeständigkeit von Beschichtungen mit einer

Labor-Automobilwaschanlage (ISO 20566:2020)

Peintures et vernis - Détermination de la résistance à la rayure d'un système de peinture

sur un poste de lavage automobile de laboratoire (ISO 20566:2020)
Ta slovenski standard je istoveten z: EN ISO 20566:2021
ICS:
43.020 Cestna vozila na splošno Road vehicles in general
87.040 Barve in laki Paints and varnishes
SIST EN ISO 20566:2021 en,fr,de

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN ISO 20566:2021
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SIST EN ISO 20566:2021
EN ISO 20566
EUROPEAN STANDARD
NORME EUROPÉENNE
February 2021
EUROPÄISCHE NORM
ICS 43.020; 87.040 Supersedes EN ISO 20566:2013
English Version
Paints and varnishes - Determination of the scratch
resistance of a coating system using a laboratory-scale car-
wash (ISO 20566:2020)

Peintures et vernis - Détermination de la résistance à la Beschichtungsstoffe - Bestimmung der

rayure d'un système de peinture sur un poste de lavage Kratzbeständigkeit von Beschichtungen mit einer

automobile de laboratoire (ISO 20566:2020) Labor-Automobilwaschanlage (ISO 20566:2020)

This European Standard was approved by CEN on 6 January 2021.

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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,

Poland, Portugal, Republic of North Macedonia, Romania, Serbia, 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: Rue de la Science 23, B-1040 Brussels

© 2021 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 20566:2021 E

worldwide for CEN national Members.
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SIST EN ISO 20566:2021
EN ISO 20566:2021 (E)
Contents Page

European foreword ....................................................................................................................................................... 3

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SIST EN ISO 20566:2021
EN ISO 20566:2021 (E)
European foreword

This document (EN ISO 20566:2021) 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 2021, and conflicting national standards shall

be withdrawn at the latest by August 2021.

Attention is drawn to the possibility that some of the elements of this document may be the subject of

patent rights. CEN shall not be held responsible for identifying any or all such patent rights.

This document supersedes EN ISO 20566:2013.

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, France, Germany, Greece, Hungary, Iceland,

Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of

North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the

United Kingdom.
Endorsement notice

The text of ISO 20566:2020 has been approved by CEN as EN ISO 20566:2021 without any modification.

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SIST EN ISO 20566:2021
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SIST EN ISO 20566:2021
INTERNATIONAL ISO
STANDARD 20566
Third edition
2020-05
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 20566:2020(E)
ISO 2020
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SIST EN ISO 20566:2021
ISO 20566:2020(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2020

All rights reserved. Unless otherwise specified, or required in the context of its implementation, 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
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Fax: +41 22 749 09 47
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO 2020 – All rights reserved
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SIST EN ISO 20566:2021
ISO 20566:2020(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 2020 – All rights reserved iii
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SIST EN ISO 20566:2021
ISO 20566:2020(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 ISO/TC 35, Paints and varnishes, Subcommittee

SC 9, General test methods for paints and varnishes, in collaboration with the European Committee for

Standardization (CEN) Technical Committee CEN/TC 139, Paints and varnishes, in accordance with the

Agreement on technical cooperation between ISO and CEN (Vienna Agreement).

This third edition cancels and replaces the second edition (ISO 20566:2013), which has been technically

revised. The main changes compared to the previous edition are as follows:
— the term “control panel” has been changed to “reference panel”;

— the requirement for the temperature of the washing suspension has been deleted;

— verification using a plastics panel has been added to Annex A;

— the text has been editorially revised and the normative references have been updated.

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 2020 – All rights reserved
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SIST EN ISO 20566:2021
ISO 20566:2020(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.
© ISO 2020 – All rights reserved v
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SIST EN ISO 20566:2021
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SIST EN ISO 20566:2021
INTERNATIONAL STANDARD ISO 20566:2020(E)
Paints and varnishes — Determination of the scratch
resistance of a coating system using a laboratory-scale
car-wash
1 Scope

This document specifies a test procedure for assessing the scratch resistance of organic 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 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 ame

...

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