EN ISO 19403-5:2024

SLOVENSKI STANDARD
oSIST prEN ISO 19403-5:2023
01-november-2023
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/DIS 19403-5:2023)
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/DIS 19403-5:2023)
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/DIS 19403-
5:2023)
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/DIS 19403-5:2023)
Ta slovenski standard je istoveten z: prEN ISO 19403-5
ICS:
87.040 Barve in laki Paints and varnishes
oSIST prEN ISO 19403-5:2023 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

oSIST prEN ISO 19403-5:2023
oSIST prEN ISO 19403-5:2023
DRAFT INTERNATIONAL STANDARD
ISO/DIS 19403-5
ISO/TC 35/SC 9 Secretariat: BSI
Voting begins on: Voting terminates on:
2023-09-21 2023-12-14
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 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
ICS: 87.040
This document is circulated as received from the committee secretariat.
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENT AND APPROVAL. IT IS
ISO/CEN PARALLEL PROCESSING
THEREFORE SUBJECT TO CHANGE AND MAY
NOT BE REFERRED TO AS AN INTERNATIONAL
STANDARD UNTIL PUBLISHED AS SUCH.
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Reference number
NATIONAL REGULATIONS.
ISO/DIS 19403-5:2023(E)
RECIPIENTS OF THIS DRAFT ARE INVITED
TO SUBMIT, WITH THEIR COMMENTS,
NOTIFICATION OF ANY RELEVANT PATENT
RIGHTS OF WHICH THEY ARE AWARE AND TO
PROVIDE SUPPORTING DOCUMENTATION. © ISO 2023

oSIST prEN ISO 19403-5:2023
ISO/DIS 19403-5:2023(E)
DRAFT INTERNATIONAL STANDARD
ISO/DIS 19403-5
ISO/TC 35/SC 9 Secretariat: BSI
Voting begins on: Voting terminates on:

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 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
ICS: 87.040
This document is circulated as received from the committee secretariat.
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENT AND APPROVAL. IT IS
© ISO 2023
ISO/CEN PARALLEL PROCESSING
THEREFORE SUBJECT TO CHANGE AND MAY
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
NOT BE REFERRED TO AS AN INTERNATIONAL
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on STANDARD UNTIL PUBLISHED AS SUCH.
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
IN ADDITION TO THEIR EVALUATION AS
or ISO’s member body in the country of the requester. BEING ACCEPTABLE FOR INDUSTRIAL,
TECHNOLOGICAL, COMMERCIAL AND
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WHICH REFERENCE MAY BE MADE IN
Reference number
Email: copyright@iso.org
NATIONAL REGULATIONS.
Website: www.iso.org ISO/DIS 19403-5:2023(E)
RECIPIENTS OF THIS DRAFT ARE INVITED
Published in Switzerland
TO SUBMIT, WITH THEIR COMMENTS,
NOTIFICATION OF ANY RELEVANT PATENT
RIGHTS OF WHICH THEY ARE AWARE AND TO
ii
PROVIDE SUPPORTING DOCUMENTATION. © ISO 2023

oSIST prEN ISO 19403-5:2023
ISO/DIS 19403-5:2023(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 . 3
8.4 Calculation of the polar fraction of the surface tension of the liquid . 4
9 Precision . 4
10 Test report . 4
Bibliography . 6
iii
oSIST prEN ISO 19403-5:2023
ISO/DIS 19403-5:2023(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 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 text has been editorially revised and 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.
iv
oSIST prEN ISO 19403-5:2023
DRAFT INTERNATIONAL STANDARD ISO/DIS 19403-5:2023(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 flow behaviour .
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 and varnishes — Vocabulary
ISO 15528, Paints, varnishes and raw materials for paints and varnishes — Sampling
ISO 19403-1, Paints and varnishes — Wettability — Part 1: Terminology and general principles
ISO 19403-2:2017, Paints and varnishes — Wettability — Part 2: Determination of the surface free energy
of solid surfaces by measuring the contact angle
ISO 19403-3, Paints and varnishes — Wettability — Part 3: Determination of the surface tension of liquids
using the pendant drop method
EN 14370, Surface active agents — Determination of surface tension
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 4618 and ISO 19403-1 apply.
ISO and IEC maintain terminology databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at https:// www .electropedia .org/
1) This term is defined in ISO 3219-1.
oSIST prEN ISO 19403-5:2023
ISO/DIS 19403-5:2023(E)
4 Principle
Step 1: The surface tension of the liquid to be tested is determined in accordance with ISO 19403-3,
EN 14370 or ISO 1409.
Step 2: The surface free energy of a reference solid
...