EN ISO 19403-5:2020

SLOVENSKI STANDARD
01-april-2020
Barve in laki - Omočljivost - 5. del: Določevanje polarnega in disperznega dela
površinske napetosti tekočin prek merjenja stičnih kotov na trdnih telesih s samo
disperznim delom površinske energije (ISO 19403-5:2017)
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 19403-5:2017)
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 19403-5:2017)
Peintures et vernis - Mouillabilité - Partie 5: Détermination des fractions polaires er
disperses de la tension superficielle des liquides à partir de l'angle de contact avec un
solide n'ayant qu'une contribution de dispersion à son énergie de surface (ISO 19403-
5:2017)
Ta slovenski standard je istoveten z: EN ISO 19403-5:2020
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
February 2020
EUROPÄISCHE NORM
ICS 01.040.87
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
19403-5:2017)
Peintures et vernis - Mouillabilité - Partie 5: Beschichtungsstoffe - Benetzbarkeit - Teil 5:
Détermination des fractions polaires er disperses de la Bestimmung des polaren und dispersen Anteils der
tension superficielle des liquides à partir de l'angle de Oberflächenspannung von Flüssigkeiten aus
contact avec un solide n'ayant qu'une contribution de Kontaktwinkelmessungen auf einem Festkörper mit
dispersion à son énergie de surface (ISO 19403- rein dispersem Anteil der Oberflächenenergie (ISO
5:2017) 19403-5:2017)
This European Standard was approved by CEN on 4 November 2019.

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, Turkey 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
© 2020 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 19403-5:2020 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
The text of ISO 19403-5:2017 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
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 August 2020, and conflicting national standards shall
be withdrawn at the latest by August 2020.
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.
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, Turkey and the
United Kingdom.
Endorsement notice
The text of ISO 19403-5:2017 has been approved by CEN as EN ISO 19403-5:2020 without any
modification.
INTERNATIONAL ISO
STANDARD 19403-5
First edition
2017-06
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
Peintures et vernis — Mouillabilité —
Partie 5: Détermination des fractions polaires er disperses de la tension
superficielle des liquides à partir de l’angle de contact avec un solide
n’ayant qu’une contribution de dispersion à son énergie de surface
Reference number
ISO 19403-5:2017(E)
©
ISO 2017
ISO 19403-5:2017(E)
© ISO 2017, 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 2017 – All rights reserved

ISO 19403-5:2017(E)
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 . 3
7.4 Determination of the contact angle of the liquid to be tested on the reference solid . 3
8 Evaluation . 3
8.1 General . 3
8.2 Owens-Wendt-Rabel-Kaelble method (OWRK method) . 3
8.3 Wu method . 4
8.4 Calculation of the polar fraction of the surface tension of the liquid . 4
9 Precision . 4
10 Test report . 4
Bibliography . 6
ISO 19403-5:2017(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 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 the following
URL: w w w . i s o .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.
A list of all parts in the ISO 19403 series can be found on the ISO website.
iv © ISO 2017 – All rights reserved

INTERNATIONAL STANDARD ISO 19403-5:2017(E)
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
1 Scope
This document specifies a test method to determine the polar and dispersive fractions of the surface
tension of liquids by optical methods. The method can be applied for the characterization of liquid
coating materials.
1)
The applicability can be restricted for liquids with non-Newtonian rheology .
This document assumes that the information of surface tension of the liquid to be tested and the surface
free energy of the dispersive reference solids is known.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
ISO 1409, Plastics/rubber — Polymer dispersions and rubber latices (natural and synthetic) —
Determination of surface tension by the ring method
ISO 4618, Paints a
...