EN ISO 4624:2016
(Main)Paints and varnishes - Pull-off test for adhesion (ISO 4624:2016)
Paints and varnishes - Pull-off test for adhesion (ISO 4624:2016)
ISO 4624:2016 specifies three methods (i.e. one dolly or two dollies on a painted panel and two dollies, one as painted substrate) for determining the adhesion by carrying out a pull-off test on a single coating or a multi-coat system of paint, varnish or related product.
These test methods have been found useful in comparing the adhesion behaviour of different coatings. It is most useful in providing relative ratings for a series of coated panels exhibiting significant differences in adhesion.
The test may be applied using a wide range of substrates. Different procedures are given according to whether the substrate is deformable, for example thin metal, plastics and wood, or rigid, for example thick concrete and metal plates. To avoid distortion of the substrate during the tensile test, it is common to use a sandwich construction. For example, for special purposes, the coating may be applied directly to the face of a test dolly.
Beschichtungsstoffe - Abreißversuch zur Bestimmung der Haftfestigkeit (ISO 4624:2016)
Diese Internationale Norm legt Verfahren zum Bestimmen der Haftfestigkeit fest, nach denen ein Abreiß-versuch an einer ein- oder mehrschichtigen Beschichtung durchgeführt wird.
Diese Prüfverfahren wurden als nützlich befunden, um das Verhalten unterschiedlicher Beschichtungen hinsichtlich ihrer Haftfestigkeit zu vergleichen. Sie sind besonders nützlich, indem sie relative Bewertungen einer Reihe von beschichteten Probenplatten ermöglichen, die deutliche Unterschiede in der Haftfestigkeit der Beschichtungen zeigen.
Die Prüfung darf auf zahlreichen Substraten durchgeführt werden. Es wird unterschiedlich verfahren, je nachdem, ob es sich um ein verformbares Substrat, z. B. dünnes Metall, Kunststoff und Holz, oder um ein starres Substrat, z. B. dicke Beton- und Metallplatten, handelt. Um während der Haftfestigkeitsprüfung ein Verbiegen des Substrates zu verhindern, wird üblicherweise der Sandwich-Aufbau angewendet. Für spezielle Zwecke kann der Beschichtungsstoff z. B. auf einen Prüfstempel aufgetragen werden.
Peintures et vernis - Essai de traction (ISO 4624:2016)
ISO 4624:2016 spécifie trois méthodes (par exemple un plot ou deux plots sur un panneau peint et deux plots, l'un étant utilisé comme subjectile peint d'essai) pour déterminer l'adhérence par un essai de traction sur une couche unique ou sur un système multicouche de peintures, vernis ou produits assimilés.
Ces méthodes d'essai se sont révélées utiles pour comparer l'adhérence de diverses couches. Elles sont surtout utiles pour fournir des classifications relatives pour une série de panneaux revêtus présentant des différences d'adhérence significatives.
L'essai peut être effectué sur une large variété de subjectiles. Différents modes opératoires sont présentés selon que le subjectile est déformable, par exemple métal, plastique et bois, ou rigide, par exemple béton épais et plaques de métal. Pour éviter la déformation du subjectile durant l'essai de traction, on utilise habituellement une construction en sandwich. Par exemple, pour des besoins particuliers, le revêtement peut être appliqué directement sur un plot d'essai.
Barve in laki - Preskušanje oprijema z odtrganjem filma (ISO 4624:2016)
Ta mednarodni standard določa tri metode (tj. en podpornik ali dva podpornika na barvani plošči in dva podpornika, pri čemer je eden barvana podlaga) za ugotavljanje oprijema z izvajanjem preskusa z odtrganjem filma na enopokrivnem ali večpokrivnem sistemu barve, laka ali sorodnega izdelka.
Te preskusne metode so se izkazale za uporabne pri primerjavi oprijema različnih premazov. Ta standard je predvsem uporaben za zagotavljanje relativnih vrednosti za serije premazanih plošč, ki se precej razlikujejo v oprijemu.
Preskus se lahko uporablja s številnimi podlagami. Podani so različni postopki glede na to, ali je podlaga upogljiva, npr. tanka kovina, polimeri in les, ali toga, npr. debel beton in kovinske plošče. Da med nateznim preskusom ne pride do popačenja podlage, se pogosto uporablja konstrukcija »sendvič«. Za posebne namene se lahko premaz nanese neposredno na sprednjo stran podpornika.
General Information
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Standards Content (Sample)
SLOVENSKI STANDARD
01-julij-2016
1DGRPHãþD
SIST EN ISO 4624:2004
Barve in laki - Preskušanje oprijema z odtrganjem filma (ISO 4624:2016)
Paints and varnishes - Pull-off test for adhesion (ISO 4624:2016)
Beschichtungsstoffe - Abreißversuch zur Bestimmung der Haftfestigkeit (ISO 4624:2016)
Peintures et vernis - Essai de traction (ISO 4624:2016)
Ta slovenski standard je istoveten z: EN ISO 4624:2016
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 4624
EUROPEAN STANDARD
NORME EUROPÉENNE
April 2016
EUROPÄISCHE NORM
ICS 87.040 Supersedes EN ISO 4624:2003
English Version
Paints and varnishes - Pull-off test for adhesion (ISO
4624:2016)
Peintures et vernis - Essai de traction (ISO 4624:2016) Beschichtungsstoffe - Abreißversuch zur Bestimmung
der Haftfestigkeit (ISO 4624:2016)
This European Standard was approved by CEN on 20 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 4624:2016 E
worldwide for CEN national Members.
Contents Page
European foreword . 3
European foreword
This document (EN ISO 4624:2016) 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 4624:2003.
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 4624:2016 has been approved by CEN as EN ISO 4624:2016 without any modification.
INTERNATIONAL ISO
STANDARD 4624
Third edition
2016-03-01
Paints and varnishes — Pull-off test
for adhesion
Peintures et vernis — Essai de traction
Reference number
ISO 4624:2016(E)
©
ISO 2016
ISO 4624:2016(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
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ii © ISO 2016 – All rights reserved
ISO 4624:2016(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Principle . 1
4 Apparatus . 2
5 Adhesives . 4
6 Sampling . 4
7 Test panels . 5
7.1 Substrate . 5
7.2 Preparation and coating . . 5
7.3 Drying and conditioning . 5
7.4 Thickness of coating . 5
8 Procedure. 5
8.1 Number of determinations . 5
8.2 Ambient conditions . 5
8.3 Adhesive . 5
8.4 Test assemblies . 5
8.4.1 Method A: General method (using two dollies) for testing both rigid and
deformable substrates . 5
8.4.2 Method B: Method for testing from one side only, using a single dolly
(suitable for rigid substrates only) . 6
8.4.3 Method C: Method using dollies, one as a painted substrate. 7
8.5 Measurement . 7
8.5.1 Breaking strength. 7
8.5.2 Nature of the fracture . 8
9 Calculation and expression of results . 8
9.1 Breaking strength . 8
9.2 Nature of failure . 9
9.3 Example . 9
10 Precision . 9
11 Test report . 9
Bibliography .11
ISO 4624:2016(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 third edition cancels and replaces the second edition (ISO 4624:2002), which has been technically
revised with the following changes:
a) detailed information on how to avoid distortion of the substrate during the tensile test has been
added;
b) the three methods using one dolly or two dollies on a painted panel and two dollies, one as painted
substrate, have been named methods A, B and C;
c) the supplementary test conditions previously in Annex A have been integrated in the test report.
iv © ISO 2016 – All rights reserved
ISO 4624:2016(E)
Introduction
This Intern
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