SIST EN ISO 19403-3:2020
(Main)Paints and varnishes - Wettability - Part 3: Determination of the surface tension of liquids using the pendant drop method (ISO 19403-3:2017)
Paints and varnishes - Wettability - Part 3: Determination of the surface tension of liquids using the pendant drop method (ISO 19403-3:2017)
ISO 19403-3:2017 specifies a test method to measure the surface tension of liquids with an optical method using the pendant drop. The method can be applied for the characterization of liquid coating materials. The applicability can be restricted for liquids with non-Newtonian rheology[1].
NOTE For other methods to determine the surface tension, see e.g. EN 14370 and ISO 1409.
[1] This term is defined in DIN 1342-1.
Beschichtungsstoffe - Benetzbarkeit - Teil 3: Bestimmung der Oberflächenspannung von Flüssigkeiten mit der Methode des hlängenden Tropfens (ISO 19403-3:2017)
Peintures et vernis - Mouillabilité - Partie 3: Détermination de la tension superficielle des liquides par la méthode de la goutte pendante (ISO 19403-3:2017)
Le présent document spécifie une méthode d'essai permettant de mesurer la tension superficielle des liquides à l'aide d'une méthode optique utilisant une goutte pendante. Cette méthode peut être utilisée pour la caractérisation des produits de peinture liquides. Son applicabilité peut être limitée pour les produits liquides de rhéologie non newtonienne[1].
NOTE D'autres méthodes de détermination de la tension superficielle sont disponibles par exemple dans l'EN 14370 et l'ISO 1409.
[1] Ce terme est défini dans la norme DIN 1342-1.
Barve in laki - Omočljivost - 3. del: Določevanje površinske napetosti tekočin s kapljično metodo (ISO 19403-3:2017)
General Information
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN ISO 19403-3:2020
01-april-2020
Barve in laki - Omočljivost - 3. del: Določevanje površinske napetosti tekočin s
kapljično metodo (ISO 19403-3:2017)
Paints and varnishes - Wettability - Part 3: Determination of the surface tension of liquids
using the pendant drop method (ISO 19403-3:2017)
Beschichtungsstoffe - Benetzbarkeit - Teil 3: Bestimmung der Oberflächenspannung von
Flüssigkeiten mit der Methode des hlängenden Tropfens (ISO 19403-3:2017)
Peintures et vernis - Mouillabilité - Partie 3: Détermination de la tension superficielle des
liquides par la méthode de la goutte pendante (ISO 19403-3:2017)
Ta slovenski standard je istoveten z: EN ISO 19403-3:2020
ICS:
87.040 Barve in laki Paints and varnishes
SIST EN ISO 19403-3:2020 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN ISO 19403-3:2020
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SIST EN ISO 19403-3:2020
EN ISO 19403-3
EUROPEAN STANDARD
NORME EUROPÉENNE
February 2020
EUROPÄISCHE NORM
ICS 01.040.87
English Version
Paints and varnishes - Wettability - Part 3: Determination
of the surface tension of liquids using the pendant drop
method (ISO 19403-3:2017)
Peintures et vernis - Mouillabilité - Partie 3: Beschichtungsstoffe - Benetzbarkeit - Teil 3:
Détermination de la tension superficielle des liquides Bestimmung der Oberflächenspannung von
par la méthode de la goutte pendante (ISO 19403- Flüssigkeiten mit der Methode des hängenden
3:2017) Tropfens (ISO 19403-3:2017)
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 19403-3:2020 E
worldwide for CEN national Members.
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SIST EN ISO 19403-3:2020
EN ISO 19403-3:2020 (E)
Contents Page
European foreword . 3
2
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SIST EN ISO 19403-3:2020
EN ISO 19403-3:2020 (E)
European foreword
The text of ISO 19403-3:2017 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
EN ISO 19403-3:2020 by 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 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 19403-3:2017 has been approved by CEN as EN ISO 19403-3:2020 without any
modification.
3
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SIST EN ISO 19403-3:2020
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SIST EN ISO 19403-3:2020
INTERNATIONAL ISO
STANDARD 19403-3
First edition
2017-06
Paints and varnishes — Wettability —
Part 3:
Determination of the surface tension of
liquids using the pendant drop method
Peintures et vernis — Mouillabilité —
Partie 3: Détermination de la tension superficielle des liquides par la
méthode de la goutte pendante
Reference number
ISO 19403-3:2017(E)
©
ISO 2017
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SIST EN ISO 19403-3:2020
ISO 19403-3:2017(E)
COPYRIGHT PROTECTED DOCUMENT
© 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
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
Ch. de Blandonnet 8 • CP 401
CH-1214 Vernier, Geneva, Switzerland
Tel. +41 22 749 01 11
Fax +41 22 749 09 47
copyright@iso.org
www.iso.org
ii © ISO 2017 – All rights reserved
---------------------- Page: 8 ----------------------
SIST EN ISO 19403-3:2020
ISO 19403-3:2017(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 1
5 Apparatus and materials. 1
6 Sampling . 3
7 Procedure. 3
7.1 General . 3
7.1.1 Setting up the drop contour analysis device . 3
7.1.2 Test conditions. 4
7.2 Determination of the surface tension of the liquid . 4
7.2.1 Preparations . 4
7.2.2 Procedure . 4
8 Evaluation . 4
9 Precision . 5
9.1 General . 5
9.2 Repeatability limit, r . 5
9.3 Reproducibility limit, R . 5
10 Test report . 5
Annex A (informative) Density of test liquids . 7
Annex B (informative) Shape parameter, B . 8
Annex C (informative) Details of an interlaboratory test . 9
Bibliography .12
© ISO 2017 – All rights reserved iii
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SIST EN ISO 19403-3:2020
ISO 19403-3:2017(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
---------------------- Page: 10 ----------------------
SIST EN ISO 19403-3:2020
INTERNATIONAL STANDARD ISO 19403-3:2017(E)
Paints and varnishes — Wettability —
Part 3:
Determination of the surface tension of liquids using the
pendant drop method
1 Scope
This document specifies a test method to measure the surface tension of liquids with an optical method
using the pendant drop. The method can be applied for the characterization of liquid coating materials.
1)
The applicability can be restricted for liquids with non-Newtonian rheology .
NOTE For other methods to determine the surface tension, see e.g. EN 14370 and ISO 1409.
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 2811 (all parts), Paints and varnishes — Determination of density
ISO 4618, Paints and varnishes — Terms and definitions
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
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 terminological databases for use in standardization at the following addresses:
— IEC Electropedia: available at http:// www .electropedia .org/
— ISO Online browsing platform: available at http:// www .iso .org/ obp
4 Principle
One drop of the respective liquids to be tested is captured hanging from a needle, where the drop shall
deviate significantly from the spherical shape due to its own mass. The surface tension is calculated
from the shape of the pendant drop in accordance with the Young-Laplace equation.
The polar and disperse fractions of the surface tension can be determined with at least two methods,
which are specified in ISO 19403-4 and ISO 19403-5.
5 Apparatus and materials
Ordinary laboratory apparatus, together with the following.
1) This term is defined in DIN 1342-1.
© ISO 2017 – All rights reserved 1
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SIST EN ISO 19403-3:2020
ISO 19403-3:2017(E)
5.1 Drop contour analysis system, for measuring the sur
...
SLOVENSKI STANDARD
oSIST prEN ISO 19403-3:2019
01-julij-2019
Barve in laki - Omočljivost - 3. del: Določevanje površinske napetosti tekočin s
kapljično metodo (ISO 19403-3:2017)
Paints and varnishes - Wettability - Part 3: Determination of the surface tension of liquids
using the pendant drop method (ISO 19403-3:2017)
Beschichtungsstoffe - Benetzbarkeit - Teil 3: Bestimmung der Oberflächenspannung von
Flüssigkeiten mit der Methode des hlängenden Tropfens (ISO 19403-3:2017)
Peintures et vernis - Mouillabilité - Partie 3: Détermination de la tension superficielle des
liquides par la méthode de la goutte pendante (ISO 19403-3:2017)
Ta slovenski standard je istoveten z: prEN ISO 19403-3
ICS:
87.040 Barve in laki Paints and varnishes
oSIST prEN ISO 19403-3:2019 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
---------------------- Page: 1 ----------------------
oSIST prEN ISO 19403-3:2019
---------------------- Page: 2 ----------------------
oSIST prEN ISO 19403-3:2019
INTERNATIONAL ISO
STANDARD 19403-3
First edition
2017-06
Paints and varnishes — Wettability —
Part 3:
Determination of the surface tension of
liquids using the pendant drop method
Peintures et vernis — Mouillabilité —
Partie 3: Détermination de la tension superficielle des liquides par la
méthode de la goutte pendante
Reference number
ISO 19403-3:2017(E)
©
ISO 2017
---------------------- Page: 3 ----------------------
oSIST prEN ISO 19403-3:2019
ISO 19403-3:2017(E)
COPYRIGHT PROTECTED DOCUMENT
© 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
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
Ch. de Blandonnet 8 • CP 401
CH-1214 Vernier, Geneva, Switzerland
Tel. +41 22 749 01 11
Fax +41 22 749 09 47
copyright@iso.org
www.iso.org
ii © ISO 2017 – All rights reserved
---------------------- Page: 4 ----------------------
oSIST prEN ISO 19403-3:2019
ISO 19403-3:2017(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 1
5 Apparatus and materials. 1
6 Sampling . 3
7 Procedure. 3
7.1 General . 3
7.1.1 Setting up the drop contour analysis device . 3
7.1.2 Test conditions. 4
7.2 Determination of the surface tension of the liquid . 4
7.2.1 Preparations . 4
7.2.2 Procedure . 4
8 Evaluation . 4
9 Precision . 5
9.1 General . 5
9.2 Repeatability limit, r . 5
9.3 Reproducibility limit, R . 5
10 Test report . 5
Annex A (informative) Density of test liquids . 7
Annex B (informative) Shape parameter, B . 8
Annex C (informative) Details of an interlaboratory test . 9
Bibliography .12
© ISO 2017 – All rights reserved iii
---------------------- Page: 5 ----------------------
oSIST prEN ISO 19403-3:2019
ISO 19403-3:2017(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
---------------------- Page: 6 ----------------------
oSIST prEN ISO 19403-3:2019
INTERNATIONAL STANDARD ISO 19403-3:2017(E)
Paints and varnishes — Wettability —
Part 3:
Determination of the surface tension of liquids using the
pendant drop method
1 Scope
This document specifies a test method to measure the surface tension of liquids with an optical method
using the pendant drop. The method can be applied for the characterization of liquid coating materials.
1)
The applicability can be restricted for liquids with non-Newtonian rheology .
NOTE For other methods to determine the surface tension, see e.g. EN 14370 and ISO 1409.
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 2811 (all parts), Paints and varnishes — Determination of density
ISO 4618, Paints and varnishes — Terms and definitions
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
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 terminological databases for use in standardization at the following addresses:
— IEC Electropedia: available at http:// www .electropedia .org/
— ISO Online browsing platform: available at http:// www .iso .org/ obp
4 Principle
One drop of the respective liquids to be tested is captured hanging from a needle, where the drop shall
deviate significantly from the spherical shape due to its own mass. The surface tension is calculated
from the shape of the pendant drop in accordance with the Young-Laplace equation.
The polar and disperse fractions of the surface tension can be determined with at least two methods,
which are specified in ISO 19403-4 and ISO 19403-5.
5 Apparatus and materials
Ordinary laboratory apparatus, together with the following.
1) This term is defined in DIN 1342-1.
© ISO 2017 – All rights reserved 1
---------------------- Page: 7 ----------------------
oSIST prEN ISO 19403-3:2019
ISO 19403-3:2017(E)
5.1 Drop contour analysis system, for measuring the surface tension of pendant drops.
Any state-of-the-art drop contour analysis system with digital image capture and analysis. Figure 1
shows a schematic example of a drop contour analysis system.
Key
1 light source
2 graduaded micro syringe
3 optical system
4 screen
Figure 1 — Example of a drop contour analysis system
The image capturing system should be oriented in a way that the optimal image resolution ratio (ratio
of width and height) can be used.
NOTE The device used can differ from the schematic diagram in regard to light path and the set-up of the
components.
5.2 Dosing unit.
The dosing unit makes it possible to dose a pendant liquid drop, which deviates significantly from the
spherical shape due to its own mass, on a circular-cylindrical needle with constant thickness within the
detection area of the camera.
For measuring the surface tension on the pendant drop, usually a larger outside diameter of the needle
is needed than for measuring the contact angle on the horizontal drop. The outside diameters of the
needle used shall be in the range between 0,5 mm and 2,5 mm. The outside diameter of the needle to
be chosen depends on the relationship between the surface tension, σ, and the density difference of the
liquid to the ambient phase, Δρ. The higher the quotient σ/Δρ, the larger shall be the outside diameter of
the needle. The dependence of the outside diameter of the needle, d, on the quotient of surface tension
and density difference of the phases involved σ/Δρ is illustrated in Figure 2.
2 © ISO 2017 – All rights reserved
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oSIST prEN ISO 19403-3:2019
ISO 19403-3:2017(E)
Key
d outside diameter of the needle, in mm
−3
σ/Δρ quotients from surface tension and density difference of the phases involved, in (mN/m)/g · cm
1 maximal outside diameter of the needle
2 optimal outside diameter of the needle
3 minimal outside diameter of the needle
Figure 2 — Diagram of the outside diameter of the needle, d, in dependence of the quotient from
su
...
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