SIST EN ISO 7784-3:2016

SLOVENSKI STANDARD
SIST EN ISO 7784-3:2016
01-julij-2016
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SIST EN ISO 7784-3:2006
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Paints and varnishes - Determination of resistance to abrasion - Part 3: Method with
abrasive-paper covered wheel and linearly reciprocating test panel (ISO 7784-3:2016)
Beschichtungsstoffe - Bestimmung des Abriebwiderstandes - Teil 3: Verfahren mit einem
mit Schleifpapier belegten Rad und sich hin und her bewegender Probenplatte (ISO
7784-3:2016)
Peintures et vernis - Détermination de la résistance à l'abrasion - Partie 3: Méthode
utilisant une roue revêtue de papier abrasif et un panneau d'essai animé d'un
mouvement de va-et-vient linéaire (ISO 7784-3:2016)
Ta slovenski standard je istoveten z: EN ISO 7784-3:2016
ICS:
87.040 Barve in laki Paints and varnishes
SIST EN ISO 7784-3:2016 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN ISO 7784-3:2016

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SIST EN ISO 7784-3:2016


EN ISO 7784-3
EUROPEAN STANDARD

NORME EUROPÉENNE

April 2016
EUROPÄISCHE NORM
ICS 87.040 Supersedes EN ISO 7784-3:2006
English Version

Paints and varnishes - Determination of resistance to
abrasion - Part 3: Method with abrasive-paper covered
wheel and linearly reciprocating test specimen (ISO 7784-
3:2016)
Peintures et vernis - Détermination de la résistance à Beschichtungsstoffe - Bestimmung des
l'abrasion - Partie 3: Méthode utilisant une roue Abriebwiderstandes - Teil 3: Verfahren mit
revêtue de papier abrasif et Méthode utilisant une roue schleifpapierbelegtem Rad und sich hin- und
revêtue de papier abrasif et une éprouvette animée herbewegender Probe (ISO 7784-3:2016)
d'un mouvement de va-et-vient linéaire (ISO 7784-
3:2016)
This European Standard was approved by CEN on 27 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 7784-3:2016 E
worldwide for CEN national Members.

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SIST EN ISO 7784-3:2016
EN ISO 7784-3:2016 (E)
Contents Page
European foreword . 3

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SIST EN ISO 7784-3:2016
EN ISO 7784-3:2016 (E)
European foreword
This document (EN ISO 7784-3:2016) 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 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 ISO 7784-3:2006.
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 7784-3:2016 has been approved by CEN as EN ISO 7784-3:2016 without any
modification.

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SIST EN ISO 7784-3:2016

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SIST EN ISO 7784-3:2016
INTERNATIONAL ISO
STANDARD 7784-3
Second edition
2016-03-15
Paints and varnishes — Determination
of resistance to abrasion —
Part 3:
Method with abrasive-paper covered
wheel and linearly reciprocating test
specimen
Peintures et vernis — Détermination de la résistance à l’abrasion —
Partie 3: Méthode utilisant une roue revêtue de papier abrasif et une
éprouvette animée d’un mouvement de va-et-vient linéaire
Reference number
ISO 7784-3:2016(E)
©
ISO 2016

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SIST EN ISO 7784-3:2016
ISO 7784-3:2016(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
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Tel. +41 22 749 01 11
Fax +41 22 749 09 47
copyright@iso.org
www.iso.org
ii © ISO 2016 – All rights reserved

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SIST EN ISO 7784-3:2016
ISO 7784-3:2016(E)

Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 2
5 Apparatus and materials. 3
6 Test specimens. 4
6.1 Preparation of test specimens . 4
6.2 Film thickness . 4
6.3 Conditioning . 4
7 Procedure. 4
7.1 Agreements . 4
7.2 Preparation of the abrasive wheel . 4
7.3 Test conditions . 5
7.4 Number of determinations . 5
7.5 General test procedure . 5
7.6 Procedure of the pre-test . 5
7.7 Procedure of the main test . 6
8 Evaluation of the main test . 6
8.1 Loss in mass by abrasion . 6
8.2 Abrasion resistance . 6
9 Precision . 6
9.1 General . 6
9.2 Repeatability limit . 6
9.3 Reproducibility limit . 6
10 Test report . 7
Bibliography . 8
© ISO 2016 – All rights reserved iii

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SIST EN ISO 7784-3:2016
ISO 7784-3:2016(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 35, Paints and varnishes, Subcommittee SC 9,
General test methods for paints and varnishes.
This second edition cancels and replaces the first edition (ISO 7784-3:2000), which has been technically
revised with the following changes:
a) the title has been changed;
b) the terms and definitions clause has been amended;
c) a figure explaining the principle of the method was amended;
d) the supplementary test conditions previously in Annex A have been integrated in the test report;
e) the calibration of the apparatus previously in Annex B has been deleted;
f) the test procedure has been re-arranged;
g) the text h
...