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)

Deals with the sampling and testing of paints, varnishes and related products. Gives a method for the determination of the resistance to abrasion of a dried coating, using abrasive paper attached to a wheel and abrading rotation.

Beschichtungsstoffe - Bestimmung des Abriebwiderstandes - Teil 1: Verfahren mit rotierendem Reibrad mit Schleifpapier (ISO 7784-1:1997)

Dieser Teil von ISO 7784 gehört zu einer Reihe von Normen, welche die Probenahme und die Prüfung von
Beschichtungsstoffen, wie Lacke und Anstrichstoffe, behandeln.
Dieser Teil von ISO 7784 legt ein Verfahren zum Bestimmen des Abriebwiderstandes von Beschichtungen fest,
bei dem Schleifpapier verwendet wird, das auf Rädern befestigt ist, mit denen die Beschichtung durch eine
Drehbewegung beansprucht wird.

Peintures et vernis - Détermination de la résistance à l'abrasion - Partie 1: Méthode utilisant une roue revêtue de papier abrasif (ISO 7784-1:1997)

Barve in laki - Ugotavljanje odpornosti proti abraziji - 1. del: Metoda z abrazivnim papirjem na vrteči plošči (ISO 7784-1:1997)

General Information

• Status: Withdrawn
• Publication Date: 04-Apr-2006
• Withdrawal Date: 12-Apr-2016
• 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
• Completion Date: 13-Apr-2016
• Ref Project: SIST 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)

Relations

• Replaced By: 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)
• Effective Date: 20-Apr-2016

Standards Content (Sample)

SLOVENSKI STANDARD
01-julij-2006
%DUYHLQODNL8JRWDYOMDQMHRGSRUQRVWLSURWLDEUD]LMLGHO0HWRGD]DEUD]LYQLP
SDSLUMHPQDYUWHþLSORãþL,62
Paints and varnishes - Determination of resistance to abrasion - Part 1: Rotating
abrasive-paper-covered wheel method (ISO 7784-1:1997)
Beschichtungsstoffe - Bestimmung des Abriebwiderstandes - Teil 1: Verfahren mit
rotierendem Reibrad mit Schleifpapier (ISO 7784-1:1997)
Peintures et vernis - Détermination de la résistance a l'abrasion - Partie 1: Méthode
utilisant une roue revetue de papier abrasif (ISO 7784-1:1997)
Ta slovenski standard je istoveten z: EN ISO 7784-1:2006
ICS:
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 7784-1
NORME EUROPÉENNE
EUROPÄISCHE NORM
April 2006
ICS 87.040
English Version
Paints and varnishes - Determination of resistance to abrasion -
Part 1: Rotating abrasive-paper-covered wheel method (ISO
7784-1:1997)
Peintures et vernis - Détermination de la résistance à Beschichtungsstoffe - Bestimmung des Abriebwiderstandes
l'abrasion - Partie 1: Méthode utilisant une roue revêtue de - Teil 1: Verfahren mit rotierendem Reibrad mit
papier abrasif (ISO 7784-1:1997) Schleifpapier (ISO 7784-1:1997)
This European Standard was approved by CEN on 9 March 2006.
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 Central Secretariat 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 Central Secretariat has the same status as the official
versions.
CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,
Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania,
Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36  B-1050 Brussels
© 2006 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 7784-1:2006: E
worldwide for CEN national Members.

Foreword
The text of ISO 7784-1:1997 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 EN ISO 7784-1:2006 by 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 2006, and conflicting national
standards shall be withdrawn at the latest by October 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,
Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary,
Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland,
Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.

Endorsement notice
The text of ISO 7784-1:1997 has been approved by CEN as EN ISO 7784-1:2006 without any
modifications.
IS0
INTERNATIONAL
7784-l
STANDARD
First edition
1997-02-15
Paints and varnishes - Determination of
resistance to abrasion -
Part 1:
Rotating abrasive-paper-covered wheel
method
Pein tures et vernis - D&termination de la ksistance a /‘abrasion -
Partie 1: M&hode utiiisant une roue rev&ue de papier abrasif
Reference number
IS0 77841:1997(E)
IS0 7784=1:1997(E)
Foreword
IS0 (the International Organization for Standardization) is a worldwide
federation of national standards bodies (IS0 member bodies). The work of
preparing International Standards is normally carried out through IS0
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. IS0
collaborates closely with the International Electrotechnical Commission
(IEC) on all matters of electrotechnical standardization.
’ 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.
International Standard IS0 7784-l was prepared by Technical Committee
lSO/rC 35, Paints and varnishes, Subcommittee SC 9, Genera/ test
methods for paints and varnishes.
IS0 7784 consists of the following parts, under the general title Paints and
varnishes - Determination of resistance to abrasion:
Part I: Rotating abrasive-paper-covered wheel method
Part 2: Rotating abrasive rubber wheel method
- Part 3: Reciprocating test panel method
Annex A forms an integral part of this part of IS0 7784. Annexes B and C
are for information only.
0 IS0 1997
All rights reserved. Unless otherwise specified, no part of this publication may be
reproduced or utilized in any form or by any means, electronic or mechanical, including
photocopying and microfilm, without permission in writing from the publisher.
International Organization for Standardization
Case Postale 56 l CH-1211 Geneve 20 l Switzerland
Printed in Switzerland
ii
@ IS0 IS0 7784=1:1997(E)
Introduction
This document is one of three parts of IS0 7784 dealing with the
determination of resistance to abrasion of a dried film of paint, varnish or
related product.
Parts l and 3 both specify a method using abrasive paper for
determination of the resistance to abrasion. In part 2, a method using
abrasive rubber wheels is described. The user of IS0 7784 should note
that the methods using abrasive paper (parts 1 and 3) are the preferred
methods.
. . .
III
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IS0 7784=1:1997(E)
INTERNATIONAL STANDARD @ IS0
Paints and varnishes - Determination of resistance
to abrasion -
Part 1:
Rotating abrasive-paper-covered wheel method
1 Scope
This part of IS0 7784 is one of a series of standards dealing with the sampling and testing of paints, varnishes and
related products.
This part of IS0 7784 specifies a method for determining the resistance to abrasion of a dried film of paint, varnish
or related product, using abrasive paper attached to wheels and abrading by making a rotary movement.
2 Normative references
The following standards contain provisions which, through reference in this text, constitute provisions of this part
of IS0 7784. At the time of publication, the editions indicated were valid. All standards are subject to revision, and
parties to agreements based on this part of IS0 7784 are encouraged to investigate the possibility of applying the
most recent editions of the standards indicated below. Members of IEC and IS0 maintain registers of currently
valid International Standards.
IS0 48: 1994, Rubber - Determination of hardness (hardness between 30 and 85 IRHD).
IS0 1512:1991, Paints and varnishes - Sampling of products in liquid or paste form.
IS0 1513:1992, Paints and varnishes - Examination and preparation of samples for testing.
IS0 1514: 1993, Paints and varnishes - Standard panels for testing.
Determination of film thickness.
IS0 2808:- 1), Paints and varnishes -
IS0 6507-I :I 982, Metallic materials - Hardness test - Vickers test - Part 1: HV 5 to HV 100.
3 Principle
A dried paint or varnish film is abraded, under specified conditions, with abrasive paper which is attached to the
wheels of an abrasion testing machine. During the test, the wheels are loaded with specified weights. The
1) To be published. (Revision of IS0 2808:1991)

@ IS0
IS0 7784-1:1997(E)
to abrasion is calculated as the loss in mass after a specified number of abrasion cycles or as the
resistan ce
down to the next layer or down to the substrate.
number of cycles required to remove the coating
4 Required supplementary information
For any particular application, the test method specified in this part of IS0 7784 needs to be completed by
supplementary information. The items of supplementary information are given in annex A.
5 Apparatus
5.1 Abrasion testing machinez), consisting of the elements described in 5.1 .I to 5.1.4 (see also figure 1).
51.1 Turntable, capable of rotating at a speed of (60 + 2) rpm, on which the test panel can be centrally mounted
and firmly attached.
5.1.2 Two rubber wheels, each of thickness (12,7 & 02) mm and overall diameter (50,O + 02) mm, the periphery
of which is covered with a rubber strip of thickness 6 mm and hardness (50 + 5) IRHD (determined in accordance
with IS0 48). The wheels shall be mounted on and able to rotate freely about horizontal spindles. Their internal
faces shall be (53,0 + 0,5) mm apart and the hypothetical line through the two spindles shall be (19,l + 0,l) mm
away from the central axis of the turntable. The mass distribution within the assembly shall be such that each of
the wheels exerts a force of (1 +, 0,02) N on the test panel.
5.1.3 Counter, to record the number of cycles (turns) made by the turntable.
5.1.4 Suction device, with two nozzles. One of the nozzles shall be positioned between the two abrading wheels
and the other placed diametrically opposite the first. The distance between the axes of the two nozzles shall be
(75 + 2) mm and the distance between them and the test panel 1 mm to 2 mm.
When the suction nozzles a re in posi
...