EN ISO 19403-5:2024

SLOVENSKI STANDARD
01-januar-2025
Nadomešča:
SIST EN ISO 19403-5:2020
Barve in laki - Omočljivost - 5. del: Določanje polarnega in disperznega dela
površinske napetosti tekočin prek merjenja stičnih kotov na trdnih telesih s samo
disperznim delom površinske energije (ISO 19403-5:2024)
Paints and varnishes - Wettability - Part 5: Determination of the polar and dispersive
fractions of the surface tension of liquids from contact angles measurements on a solid
with only a disperse contribution to its surface energy (ISO 19403-5:2024)
Beschichtungsstoffe - Benetzbarkeit - Teil 5: Bestimmung des polaren und dispersen
Anteils der Oberflächenspannung von Flüssigkeiten aus Kontaktwinkelmessungen auf
einem Festkörper mit rein dispersem Anteil der Oberflächenenergie (ISO 19403-5:2024)
Peintures et vernis - Mouillabilité - Partie 5: Détermination des fractions polaire et
dispersive de la tension superficielle des liquides à partir de mesurages de l'angle de
contact avec un solide n'ayant qu'une contribution de dispersion à son énergie de
surface (ISO 19403-5:2024)
Ta slovenski standard je istoveten z: EN ISO 19403-5:2024
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 19403-5
EUROPEAN STANDARD
NORME EUROPÉENNE
October 2024
EUROPÄISCHE NORM
ICS 87.040 Supersedes EN ISO 19403-5:2020
English Version
Paints and varnishes - Wettability - Part 5: Determination
of the polar and dispersive fractions of the surface tension
of liquids from contact angles measurements on a solid
with only a disperse contribution to its surface energy (ISO
19403-5:2024)
Peintures et vernis - Mouillabilité - Partie 5: Beschichtungsstoffe - Benetzbarkeit - Teil 5:
Détermination des fractions polaire et dispersive de la Bestimmung des polaren und dispersen Anteils der
tension superficielle des liquides à partir de mesurages Oberflächenspannung von Flüssigkeiten aus
de l'angle de contact avec un solide n'ayant qu'une Kontaktwinkelmessungen auf einem Festkörper mit
contribution de dispersion à son énergie de surface rein dispersem Anteil der Oberflächenenergie (ISO
(ISO 19403-5:2024) 19403-5:2024)
This European Standard was approved by CEN on 1 October 2024.

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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2024 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 19403-5:2024 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
This document (EN ISO 19403-5:2024) 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 April 2025, and conflicting national standards shall be
withdrawn at the latest by April 2025.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN ISO 19403-5:2020.
Any feedback and questions on this document should be directed to the users’ national standards
body/national committee. A complete listing of these bodies can be found on the CEN website.
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, France, Germany, Greece, Hungary, Iceland,
Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of
North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and the
United Kingdom.
Endorsement notice
The text of ISO 19403-5:2024 has been approved by CEN as EN ISO 19403-5:2024 without any
modification.
International
Standard
ISO 19403-5
Second edition
Paints and varnishes —
2024-10
Wettability —
Part 5:
Determination of the polar and
dispersive fractions of the surface
tension of liquids from contact
angles measurements on a solid
with only a disperse contribution to
its surface energy
Peintures et vernis — Mouillabilité —
Partie 5: Détermination des fractions polaire et dispersive de
la tension superficielle des liquides à partir de mesurages de
l'angle de contact avec un solide n'ayant qu'une contribution de
dispersion à son énergie de surface
Reference number
ISO 19403-5:2024(en) © ISO 2024

ISO 19403-5:2024(en)
© ISO 2024
All rights reserved. Unless otherwise specified, or required in the context of its implementation, 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
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii
ISO 19403-5:2024(en)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 2
5 Reference solid . 2
6 Sampling . 2
7 Procedure . 2
7.1 Test conditions .2
7.2 Determination of the surface tension of the liquid to be tested .2
7.3 Determination of the surface free energy of the reference solid .2
7.4 Determination of the contact angle of the liquid to be tested on the reference solid .3
8 Ev a luat ion . 3
8.1 General .3
8.2 Owens-Wendt-Rabel-Kaelble method (OWRK method) .3
8.3 Wu method .3
8.4 Calculation of the polar fraction of the surface tension of the liquid .4
9 Test report . 4
Bibliography . 6

iii
ISO 19403-5:2024(en)
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 document 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).
ISO draws attention to the possibility that the implementation of this document may involve the use of (a)
patent(s). ISO takes no position concerning the evidence, validity or applicability of any claimed patent
rights in respect thereof. As of the date of publication of this document, ISO had not received notice of (a)
patent(s) which may be required to implement this document. However, implementers are cautioned that
this may not represent the latest information, which may be obtained from the patent database available at
www.iso.org/patents. ISO shall not be held responsible for identifying any or all such patent rights.
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and expressions
related to conformity assessment, as well as information about ISO's adherence to the World Trade
Organization (WTO) principles in the Technical Barriers to Trade (TBT), see www.iso.org/iso/foreword.html.
This document was prepared by Technical Committee ISO/TC 35, Paints and varnishes, Subcommittee
SC 9, General test methods for paints and varnishes, in collaboration with the European Committee for
Standardization (CEN) Technical Committee CEN/TC 139, Paints and varnishes, in accordance with the
Agreement on technical cooperation between ISO and CEN (Vienna Agreement).
This second edition cancels and replaces the first edition (ISO 19403-5:2017), which has been technically
revised.
The main changes are as follows:
— in 7.4, information on the dynamic contact angle measurement has been added;
— the normative references have been updated.
A list of all parts in the ISO 19403 series can be found on the ISO website.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www.iso.org/members.html.

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International Standard ISO 19403-5:2024(en)
Paints and varnishes — W
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