EN ISO 7784-1:2016

Paints and varnishes - Determination of resistance to abrasion - Part 1: Method with abrasive-paper covered wheels and rotating test specimen (ISO 7784-1:2016)

ISO 7784-1:2016 specifies a method for determining the resistance to abrasion of coatings, for which two loaded, freely rotatable but eccentrically arranged abrasive-paper covered wheels affect the coating of the rotating test specimens.

Beschichtungsstoffe - Bestimmung des Abriebwiderstandes - Teil 1: Verfahren mit schleifpapierbelegten Rädern und rotierender Probe (ISO 7784-1:2016)

Dieser Teil von ISO 7784 legt ein Verfahren zum Bestimmen des Abriebwiderstandes von Beschichtungen fest, bei dem zwei belastete, frei drehbare aber exzentrisch angeordnete schleifpapierbelegte Reibräder auf die Beschichtung der rotierenden Probe einwirken.

Peintures et vernis - Détermination de la résistance à l'abrasion - Partie 1: Méthode utilisant des roues revêtues de papier abrasif et une éprouvette rotative (ISO 7784-1:2016)

ISO 7784-1:2016 spécifie une méthode permettant de déterminer la résistance à l'abrasion des revêtements en appliquant deux roues revêtues de papier abrasif qui sont chargées et qui tournent librement mais de manière excentrée sur le revêtement des éprouvettes rotatives.

Barve in laki - Ugotavljanje odpornosti proti obrabi - 1. del: Metoda z brusilnim papirjem na vrteči plošči in rotacijskim preskusnim preskušancem (ISO 7784-1:2016)

Ta del standarda ISO 7784 določa metodo za ugotavljanje odpornosti proti obrabi za premaze,
pri čemer dve prosto vrteči se, vendar ekscentrično premikajoči se plošči z brusilnim papirjem vplivata na premaz rotacijskih preskusnih preskušancev.

General Information

• Status: Withdrawn
• Publication Date: 12-Apr-2016
• Withdrawal Date: 21-Feb-2023
• ICS: 87.040 - Paints and varnishes
• Technical Committee: CEN/TC 139 - Paints and varnishes
• Drafting Committee: CEN/TC 139 - Paints and varnishes
• Current Stage: 9960 - Withdrawal effective - Withdrawal
• Due Date: 22-Feb-2023
• Completion Date: 22-Feb-2023
• Ref Project: SIST EN ISO 7784-1:2016 - Paints and varnishes - Determination of resistance to abrasion - Part 1: Method with abrasive-paper covered wheels and rotating test specimen (ISO 7784-1:2016)

Relations

• Replaces: EN ISO 7784-1:2006 - Paints and varnishes - Determination of resistance to abrasion - Part 1: Rotating abrasive-paper-covered wheel method (ISO 7784-1:1997)
• Effective Date: 20-Apr-2016
• Replaced By: EN ISO 7784-1:2023 - Paints and varnishes - Determination of resistance to abrasion - Part 1: Method with abrasive-paper covered wheels and rotating test specimen (ISO 7784-1:2023)
• Effective Date: 19-Jan-2023

Standards Content (Sample)

SLOVENSKI STANDARD
01-julij-2016
1DGRPHãþD
SIST EN ISO 7784-1:2006
SIST ISO 7784-1:1998
%DUYHLQODNL8JRWDYOMDQMHRGSRUQRVWLSURWLREUDELGHO0HWRGD]EUXVLOQLP
SDSLUMHPQDYUWHþLSORãþLLQURWDFLMVNLPSUHVNXVQLPSUHVNXãDQFHP,62

Paints and varnishes - Determination of resistance to abrasion - Part 1: Method with
abrasive-paper covered wheels and rotating test specimen (ISO 7784-1:2016)
Beschichtungsstoffe - Bestimmung des Abriebwiderstandes - Teil 1: Verfahren mit
schleifpapierbelegten Rädern und rotierender Probe (ISO 7784-1:2016)
Peintures et vernis - Détermination de la résistance à l'abrasion - Partie 1: Méthode
utilisant des roues revêtues de papier abrasif et une éprouvette rotative (ISO 7784-
1:2016)
Ta slovenski standard je istoveten z: EN ISO 7784-1:2016
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 7784-1
EUROPEAN STANDARD
NORME EUROPÉENNE
April 2016
EUROPÄISCHE NORM
ICS 87.040 Supersedes EN ISO 7784-1:2006
English Version
Paints and varnishes - Determination of resistance to
abrasion - Part 1: Method with abrasive-paper covered
wheels and rotating test specimen (ISO 7784-1:2016)
Peintures et vernis - Détermination de la résistance à Beschichtungsstoffe - Bestimmung des
l'abrasion - Partie 1: Méthode utilisant des roues Abriebwiderstandes - Teil 1: Verfahren mit
revêtues de papier abrasif et une éprouvette rotative schleifpapierbelegten Rädern und rotierender Probe
(ISO 7784-1:2016) (ISO 7784-1:2016)
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 7784-1:2016 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
This document (EN ISO 7784-1:2016) 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 7784-1:2006.
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 7784-1:2016 has been approved by CEN as EN ISO 7784-1:2016 without any
modification.
INTERNATIONAL ISO
STANDARD 7784-1
Second edition
2016-03-15
Paints and varnishes — Determination
of resistance to abrasion —
Part 1:
Method with abrasive-paper covered
wheels and rotating test specimen
Peintures et vernis — Détermination de la résistance à l’abrasion —
Partie 1: Méthode utilisant des roues revêtues de papier abrasif et une
éprouvette rotative
Reference number
ISO 7784-1:2016(E)
©
ISO 2016
ISO 7784-1:2016(E)
© 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
Ch. de Blandonnet 8 • CP 401
CH-1214 Vernier, Geneva, Switzerland
Tel. [phone]
Fax [phone]
[e-mail]
www.iso.org
ii © ISO 2016 – All rights reserved

ISO 7784-1:2016(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. 2
6 Test specimens. 4
6.1 Preparation of the 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 wheels . 5
7.3 Test conditions . 5
7.4 Number of determinations . 5
7.5 Test procedure . 5
8 Evaluation . 6
9 Precision . 6
10 Test report . 6
Bibliography . 7
ISO 7784-1:2016(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 7784-1:1997), 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 has been editorially revised and the normative references have been updated.
ISO 7784 consists of the following parts, under the general title Paints and varnishes — Determination of
resistance to abrasion:
— Part 1: Method with abrasive-paper covered wheels and rotating test specimen
— Part 2: Method with abrasive rubber wheels and rotating test specimen
— Part 3: Method with abrasive-paper covered wheel and linearly reciprocating test specimen
iv © ISO 2016 – All rights reserved

ISO 7784-1:2016(E)
Introduction
This part of ISO 7784 is one of the three parts of ISO 7784 dealing with test methods for the
determination of the resistance to abrasion of coatings using abrasive wheels. The characteristics and
differences of these methods are summarized in Table 1.
Table 1 — Types of method
Abrasive wheel
Test specimen
Standard
movement
Type Degree of freedom
Abrasive paper on
ISO 7784-1
rubber wheel
Freely rotatable Rotation
ISO 7784-2 Abrasive rubber wheel
Rigid – with
Abrasive paper on
ISO 7784-3 stroke-dependent Linear reciprocation
metal wheel
a
rotation
a
A mechanism rotates the abrasive wheel by a small angle after each d
...