EN ISO 7784-3:2006

Paints and varnishes - Determination of resistance to abrasion - Part 3: Reciprocating test panel method (ISO 7784-3:2000)

This part of ISO 7784 is one of a series of standards that deals with the sampling and testing of paints, varnishes and related products. It specifies a method of determining the resistance to abrasion of a dried film of paint, varnish or related product by rubbing the film against a strip of abrasive paper attached to a stationary wheel.

Beschichtungsstoffe - Bestimmung des Abriebwiderstandes - Teil 3: Verfahren mit sich hin und her bewegender Probenplatte (ISO 7784-3:2000)

Dieser Teil von ISO 7784 gehört zu einer Reihe von Normen, welche die Probenahme und die Prüfung von
Beschichtungsstoffen, wie Lacke und Anstrichstoffe, behandelt.
Dieser Teil von ISO 7784 legt ein Verfahren zum Bestimmen des Abriebwiderstandes von Beschichtungen fest,
bei dem die Beschichtung durch einen Streifen Schleifpapier beansprucht wird, der auf einem feststehenden Rad
befestigt ist.

Peintures et vernis - Détermination de la résistance à l'abrasion - Partie 3: Méthode de panneau d'essai animé d'un mouvement de va-et-vient (ISO 7784-3:2000)

L’IEC 61853-3:2018 décrit le calcul des valeurs des caractéristiques assignées d’énergie des modules PV. Le présent document a pour objet de définir une méthodologie qui permet de déterminer l’énergie produite par les modules PV (watts-heures) et les caractéristiques assignées d’énergie massique pour un profil climatique (adimensionnelles) pour une année complète à la puissance maximale de fonctionnement pour le ou les profils climatiques de référence indiqués dans l’IEC 61853-4. Le présent document est appliqué afin de déterminer une puissance de sortie de module spécifique selon un profil climatique de référence normalisé afin de comparer des modules assignés.

Barve in laki - Ugotavljanje odpornosti proti obrabi - 3. del: Metoda z izmenjajočo se preskusno ploščo (ISO 7784-3:2000)

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• Status: Withdrawn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 7784-3:2006 - Paints and varnishes - Determination of resistance to abrasion - Part 3: Reciprocating test panel method (ISO 7784-3:2000)

Relations

• Replaced By: EN ISO 7784-3:2016 - 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)
• Effective Date: 20-Apr-2016

Standards Content (Sample)

SLOVENSKI STANDARD
01-julij-2006
%DUYHLQODNL8JRWDYOMDQMHRGSRUQRVWLSURWLREUDELGHO0HWRGD]L]PHQMDMRþR
VHSUHVNXVQRSORãþR,62
Paints and varnishes - Determination of resistance to abrasion - Part 3: Reciprocating
test panel method (ISO 7784-3:2000)
Beschichtungsstoffe - Bestimmung des Abriebwiderstandes - Teil 3: Verfahren mit sich
hin und her bewegender Probenplatte (ISO 7784-3:2000)
Peintures et vernis - Détermination de la résistance a l'abrasion - Partie 3: Méthode de
panneau d'essai animé d'un mouvement de va-et-vient (ISO 7784-3:2000)
Ta slovenski standard je istoveten z: EN ISO 7784-3:2006
ICS:
87.040
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN ISO 7784-3
NORME EUROPÉENNE
EUROPÄISCHE NORM
April 2006
ICS 87.040
English Version
Paints and varnishes - Determination of resistance to abrasion -
Part 3: Reciprocating test panel method (ISO 7784-3:2000)
Peintures et vernis - Détermination de la résistance à Beschichtungsstoffe - Bestimmung des Abriebwiderstandes
l'abrasion - Partie 3: Méthode de panneau d'essai animé - Teil 3: Verfahren mit sich hin und her bewegender
d'un mouvement de va-et-vient (ISO 7784-3:2000) Probenplatte (ISO 7784-3:2000)
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 7784-3:2006: E
worldwide for CEN national Members.

Foreword
The text of ISO 7784-3:2000 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 7784-3:2006 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 7784-3:2000 has been approved by CEN as EN ISO 7784-3:2006 without any
modifications.
INTERNATIONAL ISO
STANDARD 7784-3
First edition
2000-03-15
Paints and varnishes — Determination
of resistance to abrasion —
Part 3:
Reciprocating test panel method
Peintures et vernis — Détermination de la résistance à l'abrasion —
Partie 3: Méthode de panneau d'essai animé d'un mouvement de
va-et-vient
Reference number
ISO 7784-3:2000(E)
©
ISO 2000
ISO 7784-3:2000(E)
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ii © ISO 2000 – All rights reserved

ISO 7784-3:2000(E)
Contents Page
Foreword.iv
Introduction.v
1 Scope .1
2 Normative references .1
3 Principle.1
4 Required supplementary information.2
5 Apparatus and materials.2
6 Sampling.3
7 Test panels .3
8 Procedure .4
9 Expression of results .6
10 Precision.7
11 Test report .7
Annex A (normative) Required supplementary information.8
Annex B (informative) Recommended reference panel for the calibration of abrasive paper.9
ISO 7784-3:2000(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.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 3.
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.
Attention is drawn to the possibility that some of the elements of this part of ISO 7784 may be the subject of patent
rights. ISO shall not be held responsible for identifying any or all such patent rights.
International Standard ISO 7784-3 was prepared by Technical Committee ISO/TC 35, Paints and varnishes,
Subcommittee SC 9, General test methods for paints and varnishes.
ISO 7784 consists of the following parts, under the general title Paints and varnishes — Determination of
resistance to abrasion:
� Part 1: Rotating abrasive-paper-covered wheel method
� Part 2: Rotating abrasive rubber wheel method
� Part 3: Reciprocating test panel method
Annex A forms a normative part of this part of ISO 7784. Annex B is for information only.
iv © ISO 2000 – All rights reserved

ISO 7784-3:2000(E)
Introduction
This document is one of three parts of ISO 7784 dealing with determination of resistance to abrasion of a dried film
of paint, varnish or related product.
Parts 1 and 3 both specify a method using abrasive paper for determination of the resistance to abrasion. In part 2,
a method using rubber wheels is described. The user of ISO 7784 should note that the methods using abrasive
paper (parts 1 and 3) are the preferred methods.
INTERNATIONAL STANDARD ISO 7784-3:2000(E)
Paints and varnishes — Determination of resistance to abrasion —
Part 3:
Reciprocating test panel method
1 Scope
This part of ISO 7784 is one of a series of standards that deals with the sampling and testing of paints, varnishes
and related products.
It specifies a method of determining the resistance to abrasion of a dried film of paint, varnish or related product by
rubbing the film against a strip of abrasive paper attached to a stationary wheel.
2 Normative references
The following normative documents contain provisions which, through reference in this text, constitute provisions of
this part of ISO 7784. For dated references, subsequent amendments to, or revisions of, any of these publications
do not apply. However, parties to agreements based on this part of ISO 7784 are encouraged to investigate the
possibility of applying the most recent editions of the normative documents indicated below. For undated
references, the latest edition of the normative document referred to applies. Members of ISO and IEC maintain
registers of currently valid International Standards.
ISO 1513:1992, Paints and varnishes — Examination and preparation of samples for testing.
ISO 1514:1993, Paints and varnishes — Standard panels for testing.
ISO 2808:1997, Paints and varnishes — Determination of film thickness.
ISO 3270:1984, Paints and varnishes and their raw materials — Temperatures and humidities for conditioning and
testing.
1)
ISO 15528:— , Paints, varnishes and raw materials for paints and varnishes — Sampling.
3Principle
A dried paint or varnish film on a test panel is abraded, under specified conditions, by rubbing the panel against a
strip of abrasive paper attached to the circumference of a stationary wheel. The wheel is weighted so that the
abrasive paper is pressed against the panel with a specified force. After each complete reciprocating movement
(double stroke, DS) of the panel, the wheel is advanced through a small angle to bring an unused portion of the
abrasive strip into contact with the test surface.
1) To be published. (Revision of ISO 842:1984 and ISO 1512:1991)
ISO 7784-3:2000(E)
Either the resulting loss in mass of the test panel is measured after a specified number of double strokes, and the
loss in mass for one double stroke (mg/DS) and the abrasion resistance (DS/mg) are calculated, and/or the mean
number of double strokes required for wearthrough of the coating (or the topcoat of a multicoat system) is
determined (see clause 9).
4 Required supplementary information
For any particular application, the test method specified in this part of ISO 7784 needs to be completed by
supplementary information. The items of supplementary information are given in annex A.
5 Apparatus and materials
2)
5.1 Abrasion tester (see Figure 1)
The tester shall consist of a clamping device or pressure plate for holding the test specimen level and rigid and a
(50� 0,05) mm diameter wheel, to the outer circumference of which a 12-mm-wide strip of silicon carbide paper is
attached. The force between the wheel and the test surface shall be capable of being varied from zero to at least
3)
(6,9� 0,05) N.
The abrasive action shall be produced by rubbing a test panel in a reciprocating manner (stroke length 30 mm)
against a stationary wheel. Other types of instrument in which the panel and the wheel are moved relative to one
another in a reciprocating manner may also be used, providing they give the same results.
After each double stroke, the wheel shall be advanced through a small angle to bring a fresh area of the silicon
carbide paper into contact with the test surface before making the next double stroke.
The angle of rotation shall be such that, after 400 double strokes, the wheel will have made one complete
revolution. On completion of this cycle, the strip of silicon carbide paper shall be replaced.
The frequency of motion of the test panel shall be (40� 2) DS/min.
The number of double strokes may be registered by means of a cou
...