SIST EN ISO 12137-1:2006

Paints and varnishes - Determination of mar resistance - Part 1: Method using a curved stylus (ISO 12137-1:1997, including Technical Corrigendum 1:1998)

This part of ISO 12137 specifies a method for determining,  using a curved (loop-shaped or ring-shaped) stylus, the mar  resistance of a single coating of a paint, varnish or related  product, or the upper layer of a multicoat system. Part 2 of  ISO 12137 specifies a mathod using a pointed stylus. The  choice between the two methods will depend on particular  practical problem. This test has been found to be useful in  comparing the mar resistance of different coatings. It is most  useful in providing relative ratings for a series of coated panels  exibiting significant differences in mar resistance.

Beschichtungsstoffe - Bestimmung der Kratzfestigkeit - Teil 1: Verfahren mit gebogenem Stichel (ISO 12137-1:1997, einschließlich Technische Korrektur 1:1998)

1.1 Dieser Teil von ISO 12137 gehört zu einer Reihe von Normen, welche die Probenahme und die Prüfung
von Beschichtungsstoffen, wie Lacke und Anstrichstoffe, behandelt.
Dieser Teil von ISO 12137 legt ein Verfahren zum Bestimmen der Widerstandsfähigkeit einer einzelnen
Schicht aus einem Beschichtungsstoff oder der obersten Schicht eines Mehrschichtsystems gegen Verkratzen
fest, bei dem ein gebogener Stichel (in Schleifen- oder Ringform) angewendet wird. Teil 2 von ISO 12137 legt
ein Verfahren mit einem spitzen Stichel fest. Welches der beiden Verfahren gewählt wird, hängt von der
jeweiligen Fragestellung ab.
1.2 Diese Prüfung wurde zum Vergleich der Widerstandsfähigkeit unterschiedlicher Beschichtungen gegen
Verkratzen als nützlich befunden. Sie ist besonders geeignet, wenn bei einer Reihe beschichteter
Probenplatten mit deutlich unterschiedlicher Widerstandsfähigkeit gegen Verkratzen relative Einstufungen
erhalten werden sollen.

Peintures et vernis - Détermination de la résistance a la détérioration - Partie 1: Méthode utilisant un stylet arrondi (ISO 12137-1:1997, Technical Corrigendum 1:1998 inclus)

Barve in laki – Ugotavljanje odpornosti proti praskam – 1. del: Metoda z uporabo ukrivljenega praskala (ISO 12137-1:1997, vključno s tehničnim popravkom 1:1998)

General Information

• Status: Withdrawn
• Publication Date: 30-Sep-2006
• Withdrawal Date: 18-Oct-2011
• ICS: 87.040 - Paints and varnishes
• Technical Committee: IBLP - Paints and varnishes
• Current Stage: 9900 - Withdrawal (Adopted Project)
• Start Date: 18-Oct-2011
• Due Date: 10-Nov-2011
• Completion Date: 19-Oct-2011
• Directive: TRRTP129 - Tehnična smernica TSG-12640-001:2008 Zdravstveni objekti
• Ref Project: EN ISO 12137-1:2006 - Paints and varnishes - Determination of mar resistance - Part 1: Method using a curved stylus (ISO 12137-1:1997, including Technical Corrigendum 1:1998)

Relations

• Replaced By: SIST EN ISO 12137:2011 - Paints and varnishes - Determination of mar resistance (ISO 12137:2011)
• Effective Date: 12-Nov-2011
• Replaced By: SIST EN ISO 12137:2011 - Paints and varnishes - Determination of mar resistance (ISO 12137:2011)
• Effective Date: 08-Jun-2022

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN ISO 12137-1:2006
01-oktober-2006
%DUYHLQODNL±8JRWDYOMDQMHRGSRUQRVWLSURWLSUDVNDP±GHO0HWRGD]XSRUDER
XNULYOMHQHJDSUDVNDOD,62YNOMXþQRVWHKQLþQLPSRSUDYNRP
Paints and varnishes - Determination of mar resistance - Part 1: Method using a curved
stylus (ISO 12137-1:1997, including Technical Corrigendum 1:1998)
Beschichtungsstoffe - Bestimmung der Kratzfestigkeit - Teil 1: Verfahren mit gebogenem
Stichel (ISO 12137-1:1997, einschließlich Technische Korrektur 1:1998)
Peintures et vernis - Détermination de la résistance a la détérioration - Partie 1: Méthode
utilisant un stylet arrondi (ISO 12137-1:1997, Technical Corrigendum 1:1998 inclus)
Ta slovenski standard je istoveten z: EN ISO 12137-1:2006
ICS:
87.040 Barve in laki Paints and varnishes
SIST EN ISO 12137-1:2006 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN ISO 12137-1:2006

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SIST EN ISO 12137-1:2006
INTERNATIONAL IS0
STANDARD 12137-l
First edition
1997-02- 15
Paints andl varnishes - Determination
of mar resistance -
Part 1:
Method using a curved stylus
Peinture et vernis - Dgtermination de la rksistance 2 la d&rioration -
Parfie 1: Mkthode utilisant un sty/et arrondi
Reference number
IS0 12% 37-I :I 997(E)

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SIST EN ISO 12137-1:2006
IS0 12137-1:1997(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 llnternational
Standard requires approval by at least 75 % of the member bodies
casting a vote.
International Standard IS0 12137-1 was prepared by Technical
Committee lSO/TC 35, Paints and varnishes, Subcommittee SC 9,
General test methods for paints and varnishes.
IS0 12137 consists of the following parts, under the general title Paints
and varnishes - Determination of mar resistance:
- Part 1: Method using a curved stylus
- Part 2: Method using a pointed stylus
Annex A forms an integral part of this part of IS0 12137. Annex B is 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
Internet central @ iso.ch
x.400 c=ch; a=400net; p=iso; o=isocs; s=central
Printed in Switzerland
ii

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SIST EN ISO 12137-1:2006
IS0 12137-1:1997(E)
INTERNATIONAL STANDARD @ Iso
- Determination of mar resistance -
Paints and varnishes
Part 1:
Method using a curved stylus
1 Scope
1 .l This part of IS0 12137 is one of a series of standards dealing with the sampling and testing of paints,
varnishes and related products.
It specifies a method for determining, using a curved (loop-shaped or ring-shaped) stylus, the mar resistance of a
single coating of a paint, varnish or related product, or the upper layer of a multicoat system. Part 2 of IS0 12137
specifies a method using a pointed stylus. The choice between the two methods will depend on the particular
practical problem.
1.2 This test has been found to be useful in comparing the mar resistance of different coatings. It is most useful in
providing relative ratings for a series of coated panels exhibiting significant differences in mar resistance.
2 Normative references
The following standards contain provisions which, through reference in this text, constitute provisions of this part
of IS0 12137. 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 12137 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.
Sampling of products in liquid or paste form.
IS0 1512:1991, Paints and varnishes -
Examination and preparation of samples for testing,
IS0 1513:1992, Paints and varnishes -
IS0 1514:1993, Paints and varnishes - Standard panels for testing.
1), Paints and varnishes - Determination of film thickness.
IS0 2808:-
1) To be published. (Revision of IS0 2808:1991)
1

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SIST EN ISO 12137-1:2006
IS0 12137-1:1997(E)
3 Definition
For the purposes of this part of IS0 12137, the following definition applies:
3.1 mar resistance: The resistance of the surface of a paint film to marking or the formation of other defects as
a result of the action of a specified stylus pushed across the surface.
Marring covers a very broad range of defects in the surface of the paint film. These defects include small scratches
and other marks in the surface of the paint film caused by finger nails or car wash brushes, for instance.
The defects are defined as follows:
a) Plastic deformation - the permanent indentation of the surface with or without any surface blemish or cohesive
fracture.
a superficial surface effect caused by a difference in the scattering of light between the line
b) Surface blemish -
of test and the adjacent surface.
a continuous cut or gouge through the surface.
c) Surface scratch -
d) Cohesive fracture - the presence of a visible surface break or rupture.
e) Combinations of the above.
these of defect will be of particular importance, while in other cases one of the other
NOTE - In some cases, one of
types
be of interest.
types of defect may
4 Principle
The product or system under test is applied at uniform thickness to flat panels of uniform surface texture. After
drying/curing, the mar resistance is determined by pushing the panels beneath a curved (loop-shaped or ring-
shaped) stylus which is mounted so that it presses down on the surface of the test panel at an angle of 45”. The
load on the test panel is increased in steps until the coating is marred.
5 Required supplementary information
For any particular application, the test method specified in this part of IS0 12137 needs to be completed by
supplementary information. The items of supplementary information are given in annex A.
6 Apparatus
6.1 A suitable tester2) is shown in figure 1. It consists principally of a counterbalanced beam with a small scale pan
on which weights can be placed to load the stylus. The stylus is mounted at the lower end of a rod which extends
down from the beam at a fixed angle of 45O. The test panel is placed on a sliding table which can be pushed under
the stylus, preferably by the use of mechanical equipment.
The tester shall be designed so that tests can be performed with stylus loadings of up to 5 kg and so that the load
can be increased or decreased in steps of 0,5 kg, or in steps of 0,25 kg or 0,l kg when greater accuracy is required
near the mar point.
2) Other types of scratch tester may be used if they give similar relative ratings. For instance, the scratch apparatus described
in IS0 1518:1992, Paints and varnishes - Scratch test, is suitable with some modifications.

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SIST EN ISO 12137-1:2006
IS0 12137=1:1997(E)
Weight
l- Beam release
/-
Direction of test
Level indicator,-,
\ A
Main bearing support
Figure 1 - A balanced-beam mar-resistance tester
62 . Either a loop-shaped or a ring-shaped stylus can be used.
The loop-shaped stylus shall be made of chromium-plated steel and shall be in the form of a 1,6-mm-diameter rod
bent into a “U” shape with an outside radius of (3,25 If: 0,05) mm [see figure 2a)].
The ring-shaped stylus shall be made of the same 1,6-mm-diameter chromium-plated steel rod, but bent into the
shape of a ring [see figure 2b)].
In each case, the stylus shall be harde
...