ISO/TS 19392-6:2026

Technical
Specification
ISO/TS 19392-6
Second edition
Paints and varnishes — Coating
2026-02
systems for wind-turbine rotor
blades —
Part 6:
Determination and evaluation of ice
adhesion using centrifuge
Peintures et vernis — Matériaux de revêtement pour pales de
turbines éoliennes —
Partie 6: Détermination et évaluation de l'adhésion de la glace à
l'aide d'une centrifugeuse
Reference number
© ISO 2026
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
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 2
5 Apparatus . 2
6 Sampling . 2
7 Test panels . 3
7.1 Substrate .3
7.2 Preparation .3
7.3 Conditioning.3
7.4 Coating thickness .3
7.5 Roughness of coating .4
8 Procedure . 4
8.1 Number of determinations .4
8.2 Examination before exposure . .4
8.3 Sample preparation (ice formation) .4
8.4 Ice adhesion testing .5
8.5 Examination after testing .5
9 Evaluation . 5
10 Precision . 6
11 Test report . 6
Annex A (informative) Example of parameters for ice formation processes . 8
Bibliography . 9

iii
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/TS 19392-6:2023), which has been technically
revised.
The main changes are as follows:
— in Clause 1 a note has been added to give more information on the different methods for the determination
of ice adhesion;
— ISO 2808 has been added as a normative reference;
— in 8.3, in the seventh paragraph, considerations on the presence of mould were added;
— in 8.4, Table 1, a header and a separate column for the units were inserted;
— in Clause 9, Formula (1), ω was corrected to the angular momentum ω and the explanation of symbols
was updated;
— in Annex A an introductory sentence was added;
— in Table A.1 a separate column for the units was inserted.
A list of all parts in the ISO 19392 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
Introduction
Ice accretion on rotor blade surfaces of wind turbines can decrease the efficiency and limit the performance
of wind turbines in cold, humid environments. Ice formation can also lead to damage of the rotor blade and
can be hazardous, if ice falls off the blade. Icephobic coatings (“icephobics”) can be applied to rotor blade
surfaces to reduce or prevent the adhesion of ice by removing ice prior to reaching a critical ice mass for the
rotor blades. They can also increase the efficiency of thermal ice protection systems.

v
Technical Specification ISO/TS 19392-6:2026(en)
Paints and varnishes — Coating systems for wind-turbine
rotor blades —
Part 6:
Determination and evaluation of ice adhesion using
centrifuge
1 Scope
This document specifies a method to measure ice adhesion from artificial ice on test substrates by using
a centrifuge. Basic ice types are defined and test parameters for the ice removal are described to achieve
reproducibility of test results for ice adhesion measurements for rotor blade coatings. This document does
not intend to provide fixed test parameter to account for the diversity of relevant icing scenarios in this field
of application.
NOTE In practice, ice adhesion can be determined by two different measurement principles, the centrifugal test
(covered in this document) and the shear test, which differ in dynamic and quasistatic shear rates.
This test method can be used to test the adhesion of dynamic ice on the coating system of a wind turbine
rotor blade under operation.
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 1513, Paints and varnishes — Examination and preparation of test samples
ISO 2808, Paints and varnishes — Determination of film thickness
ISO 4618, Paints and varnishes — Vocabulary
ISO 15528, Paints, varnishes and raw materials for paints and varnishes — Sampling
ISO 21920-2, Geometrical product specifications (GPS) — Surface texture: Profile — Part 2: Terms, definitions
and surface texture parameters
SAE ARP 5905A, Calibration and Acceptance of Icing Wind Tunnels
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 4618 and the following apply.
ISO and IEC maintain te
...