Paints and varnishes - Determination of stone-chip resistance of coatings - Part 4: Mobile multi-impact testing on a small testing area (ISO 20567-4:2023)

This document specifies a mobile method for evaluating the resistance of automotive finishes to chilled-iron grit projected onto the surface under test to simulate the effect of stone chipping.
Results from the test specified in this document are not comparable with results specified in ISO 20567-1.

Beschichtungsstoffe - Prüfung der Steinschlagfestigkeit von Beschichtungen - Teil 4: Mobile Multischlagprüfung auf einer kleinen Prüffläche (ISO 20567-4:2023)

Peintures et vernis - Détermination de la résistance des revêtements aux impacts de cailloux - Partie 4: Essais de chocs multiples par projection sur une petite surface d’essai (ISO 20567-4:2023)

Le présent document spécifie une méthode pour évaluer la résistance des finitions des carrosseries de voitures à la projection de grenaille angulaire en fonte trempée contre la surface soumise à l’essai, cette projection étant destinée à simuler l’impact de cailloux.
Les résultats de l’essai spécifié dans le présent document ne sont pas comparables aux résultats spécifiés dans l’ISO 20567-1.

Barve in laki - Določanje odpornosti premazov proti udarcem kamenja - 4. del: Mobilni preskus z več udarci na majhni preskusni površini (ISO 20567-4:2023)

Ta dokument določa mobilno metodo za ocenjevanje odpornosti avtomobilskih premazov na granulate v obliki sekancev iz kaljenega železa, ki simulirajo udarce kamenih okruškov na preskusno površino.
Rezultati na podlagi preskusa, določenega v tem dokumentu, niso primerljivi z rezultati iz standarda ISO 20567-1.

General Information

Status
Published
Publication Date
30-Jan-2024
Current Stage
6060 - Definitive text made available (DAV) - Publishing
Start Date
31-Jan-2024
Due Date
23-Nov-2025
Completion Date
31-Jan-2024

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SLOVENSKI STANDARD
01-april-2024
Barve in laki - Določanje odpornosti premazov proti udarcem kamenja - 4. del:
Mobilni preskus z več udarci na majhni preskusni površini (ISO 20567-4:2023)
Paints and varnishes - Determination of stone-chip resistance of coatings - Part 4:
Mobile multi-impact testing on a small testing area (ISO 20567-4:2023)
Beschichtungsstoffe - Prüfung der Steinschlagfestigkeit von Beschichtungen - Teil 4:
Mobile Multischlagprüfung auf einer kleinen Prüffläche (ISO 20567-4:2023)
Peintures et vernis - Détermination de la résistance des revêtements aux impacts de
cailloux - Partie 4: Essais de chocs multiples par projection sur une petite surface d’essai
(ISO 20567-4:2023)
Ta slovenski standard je istoveten z: EN ISO 20567-4:2024
ICS:
87.040 Barve in laki Paints and varnishes
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN ISO 20567-4
EUROPEAN STANDARD
NORME EUROPÉENNE
January 2024
EUROPÄISCHE NORM
ICS 87.040
English Version
Paints and varnishes - Determination of stone-chip
resistance of coatings - Part 4: Mobile multi-impact testing
on a small testing area (ISO 20567-4:2023)
Peintures et vernis - Détermination de la résistance des Beschichtungsstoffe - Prüfung der Steinschlagfestigkeit
revêtements aux impacts de cailloux - Partie 4: Essais von Beschichtungen - Teil 4: Mobile
de chocs multiples par projection sur une petite Multischlagprüfung auf einer kleinen Prüffläche (ISO
surface d'essai (ISO 20567-4:2023) 20567-4:2023)
This European Standard was approved by CEN on 15 January 2024.

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, Türkiye 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
© 2024 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 20567-4:2024 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
The text of ISO 20567-4:2023 has been prepared by Technical Committee ISO/TC 35 "Paints and
varnishes” of the International Organization for Standardization (ISO) and has been taken over as
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 July 2024, and conflicting national standards shall be
withdrawn at the latest by July 2024.
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.
Any feedback and questions on this document should be directed to the users’ national standards body.
A complete listing of these bodies can be found on the CEN website.
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, Türkiye and the
United Kingdom.
Endorsement notice
The text of ISO 20567-4:2023 has been approved by CEN as EN ISO 20567-4:2024 without any
modification.
INTERNATIONAL ISO
STANDARD 20567-4
First edition
2023-03
Paints and varnishes — Determination
of stone-chip resistance of coatings —
Part 4:
Mobile multi-impact testing on a small
testing area
Reference number
ISO 20567-4:2023(E)
ISO 20567-4:2023(E)
© ISO 2023
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
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii
ISO 20567-4:2023(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 1
5 Apparatus and test equipment . 2
5.1 Stone-chip resistance tester . 2
5.2 Consumables . . . 5
5.2.1 Chilled-iron grit . 5
6 Apparatus functional test . 6
7 Procedure .6
8 Ev a luat ion . 7
9 Test report . 8
Annex A (normative) Pictorial reference standards for evaluating stone-chip resistance.9
Annex B (informative) Examples of suitable methods for removing loose coating .10
Bibliography .11
iii
ISO 20567-4:2023(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.
A list of all parts in the ISO 20567 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 20567-4:2023(E)
Introduction
The stone-chip resistance of the body finish is an important quality characteristic. A standard
procedure for testing this characteristic is the method according to ISO 20567-1, which is performed
with a stationary tester on a large test area. The method described here can be used in mobile form.
v
INTERNATIONAL STANDARD ISO 20567-4:2023(E)
Paints and varnishes — Determination of stone-chip
resistance of coatings —
Part 4:
Mobile multi-impact testing on a small testing area
1 Scope
This document specifies a mobile method for evaluating the resistance of automotive finishes to chilled-
iron grit projected onto the surface under test to simulate the effect of stone chipping.
Results from the test specified in this document are not comparable with results specified in
ISO 20567-1.
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 amendments) applies.
ISO 565, Test sieves — Metal wire cloth, perforated metal plate and electroformed sheet — Nominal sizes
of openings
ISO 2808, Paints and varnishes — Determination of film thickness
ISO 4618, Paints and varnishes — Vocabulary
ISO 11124-2, Preparation of steel substrates before application of paints and related products —
Specifications for metallic blast-cleaning abrasives — Part 2: Chilled-iron grit
ISO 11125-2, Preparation of steel substrates before application of paints and related products — Test
methods for metallic blast-cleaning abrasives — Part 2: Determination of particle size distribution
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 4618 apply.
ISO and IEC maintain terminology databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at https:// www .electropedia .org/
4 Principle
The stone-chip resistance of the coati
...

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