FprEN ISO 19403-6

SLOVENSKI STANDARD
01-januar-2024
Barve in laki - Omočljivost - 6. del: Merjenje dinamičnega stičnega kota (ISO/DIS
19403-6:2023)
Paints and varnishes - Wettability - Part 6: Measurement of dynamic contact angle
(ISO/DIS 19403-6:2023)
Beschichtungsstoffe - Benetzbarkeit - Teil 6: Messung des dynamischen Kontaktwinkels
(ISO/DIS 19403-6:2023)
Peintures et vernis - Mouillabilité - Partie 6: Mesurage de l'angle de contact dynamique
(ISO/DIS 19403-6:2023)
Ta slovenski standard je istoveten z: prEN ISO 19403-6
ICS:
87.040 Barve in laki Paints and varnishes
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

DRAFT INTERNATIONAL STANDARD
ISO/DIS 19403-6
ISO/TC 35/SC 9 Secretariat: BSI
Voting begins on: Voting terminates on:
2023-09-25 2023-12-18
Paints and varnishes — Wettability —
Part 6:
Measurement of dynamic contact angle
Peintures et vernis — Mouillabilité —
Partie 6: Mesurage de l'angle de contact dynamique
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
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Reference number
NATIONAL REGULATIONS.
ISO/DIS 19403-6:2023(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

ISO/DIS 19403-6:2023(E)
DRAFT INTERNATIONAL STANDARD
ISO/DIS 19403-6
ISO/TC 35/SC 9 Secretariat: BSI
Voting begins on: Voting terminates on:

Paints and varnishes — Wettability —
Part 6:
Measurement of dynamic contact angle
Peintures et vernis — Mouillabilité —
Partie 6: Mesurage de l'angle de contact dynamique
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
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NATIONAL REGULATIONS.
Website: www.iso.org ISO/DIS 19403-6:2023(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

ISO/DIS 19403-6:2023(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 2
5 Apparatus and materials .2
6 Sampling . 4
7 Procedure .4
7.1 General for measuring on the horizontal drop . 4
7.1.1 Setting up the contact angle measuring system . 4
7.1.2 Test conditions . 4
7.1.3 Conditioning of the test panels . 4
7.1.4 Conditioning of the test liquids . 4
7.2 Measurement . 4
7.2.1 General . 4
7.2.2 Measuring method . 5
7.2.3 Determination of the contact angle . 5
8 Evaluation . 6
9 Precision . 8
10 Test report . 8
Annex A (informative) Notes on sampling and treatment of test specimens .10
Bibliography .11
iii
ISO/DIS 19403-6:2023(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 19403-6:2017), which has been
technically revised.
The main changes are as follows:
— the term 3.2 “advancing angle” has been amended by “advancing contact angle” and the definition
has been reworded;
— the term 3.3 “receding angle” has been amended by “receding contact angle” and the definition has
been reworded;
— 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
ISO/DIS 19403-6:2023(E)
Introduction
Dynamic contact angles describe the processes on the interface liquid/solid during volume increase
(advancing contact angle) or volume decrease (receding contact angle) of a drop. As an alternative to
the static method (see ISO 19403-2), for the advancing contact angle always a surface area is wetted,
which was previously unwetted. For the receding contact angle, the contact angle during dewetting is
observed. From the difference between advancing contact angle, information on chemical homogeneity
and roughness can be concluded. The receding contact angle is not suitable for the determination of the
surface energy
v
DRAFT INTERNATIONAL STANDARD ISO/DIS 19403-6:2023(E)
Paints and varnishes — Wettability —
Part 6:
Measurement of dynamic contact angle
1 Scope
This document specifies a method to measure the dynamic contact angle with an optical method. The
advancing and the receding contact angles are determined.
By means of this defined measurement, the wetting and dewetting properties can be characterized. It
can also be concluded on the morphological and chemical homogeneity of interfaces.
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 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: Vocabulary 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
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 4618 and ISO 19403-1 and the
following 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/
3.1
dynamic contact angle
contact angle, which is measured during advancing or receding of the three-phase point
Note 1 to entry: For the definition of “contact angle”, see ISO 19403-1:2017, 3.1.9.
Note 2 to entry: The advancing or receding of the three-phase point can be achieved by changing the volume of
the liquid drop to be measured, by relative movement (immersing and pulling out) of a solid body to an interface,
or by moving the drop over the interface (e.g. rolling off).
3.2
advancing contact angle
advancing angle
θ
a
contact angle measured at the three-phase line during
...