prEN ISO 19392-1

Paints and varnishes - Coating systems for wind-turbine rotor blades - Part 1: Minimum requirements prior and after weathering and climatic testing (ISO/DIS 19392-1:2026)

This document specifies minimum requirements and weathering for coating systems for wind-turbine rotor blades.

Beschichtungsstoffe - Beschichtungssysteme für Rotorblätter von Windenergieanlagen - Teil 1: Mindestanforderungen vor und nach Bewitterungs- und Klimaprüfungen (ISO/DIS 19392‑1:2026)

Peintures et vernis - Systèmes de revêtement pour pales de rotors d’éoliennes - Partie 1: Exigence minimales avant et après les essais de vieillissement et de cycles climatiques (ISO/DIS 19392-1:2026)

Barve in laki - Premazni sistemi za lopatice rotorjev vetrnih turbin - 1. del: Minimalne zahteve pred in po preskusih izpostavljenosti vremenskim vplivom in klimatskih preskusih (ISO/DIS 19392-1:2026)

Ta dokument določa minimalne zahteve in vremensko odpornost za sisteme premazov za lopatice rotorjev vetrnih turbin.

General Information

• Status: Not Published
• Publication Date: 01-Nov-2027
• ICS: 87.040 - Paints and varnishes
• Technical Committee: CEN/TC 139 - Paints and varnishes
• Drafting Committee: CEN/TC 139 - Paints and varnishes
• Current Stage: 4020 - Submission to enquiry - Enquiry
• Start Date: 02-Apr-2026
• Completion Date: 02-Apr-2026
• Ref Project: oSIST prEN ISO 19392-1:2026 - Paints and varnishes - Coating systems for wind-turbine rotor blades - Part 1: Minimum requirements prior and after weathering and climatic testing (ISO/DIS 19392-1:2026)

Relations

• Revises: CEN ISO/TS 19392-1:2022 - Paints and varnishes - Coating systems for wind-turbine rotor blades - Part 1: Minimum requirements and weathering (ISO/TS 19392-1:2018)
• Effective Date: 12-Jun-2024

Standards Content (Sample)

SLOVENSKI STANDARD
01-maj-2026
Barve in laki - Premazni sistemi za lopatice rotorjev vetrnih turbin - 1. del:
Minimalne zahteve pred in po preskusih izpostavljenosti vremenskim vplivom in
klimatskih preskusih (ISO/DIS 19392-1:2026)
Paints and varnishes - Coating systems for wind-turbine rotor blades - Part 1: Minimum
requirements prior and after weathering and climatic testing (ISO/DIS 19392-1:2026)
Beschichtungsstoffe - Beschichtungssysteme für Rotorblätter von Windenergieanlagen -
Teil 1: Mindestanforderungen vor und nach Bewitterungs- und Klimaprüfungen (ISO/DIS
19392-1:2026)
Peintures et vernis - Systèmes de revêtement pour pales de rotors d’éoliennes - Partie 1:
Exigence minimales avant et après les essais de vieillissement et de cycles climatiques
(ISO/DIS 19392-1:2026)
Ta slovenski standard je istoveten z: prEN ISO 19392-1
ICS:
27.180 Vetrne elektrarne Wind turbine energy systems
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 19392-1
ISO/TC 35/SC 9
Paints and varnishes — Coating
Secretariat: BSI
systems for wind-turbine rotor
Voting begins on:
blades —
2026-04-02
Part 1:
Voting terminates on:
2026-06-25
Minimum requirements prior
and after weathering and climatic
testing
ICS: 87.040
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENTS AND APPROVAL. IT
IS THEREFORE SUBJECT TO CHANGE
AND MAY NOT BE REFERRED TO AS AN
INTERNATIONAL STANDARD UNTIL
PUBLISHED AS SUCH.
This document is circulated as received from the committee secretariat.
IN ADDITION TO THEIR EVALUATION AS
BEING ACCEPTABLE FOR INDUSTRIAL,
TECHNOLOGICAL, COMMERCIAL AND
USER PURPOSES, DRAFT INTERNATIONAL
STANDARDS MAY ON OCCASION HAVE TO
ISO/CEN PARALLEL PROCESSING
BE CONSIDERED IN THE LIGHT OF THEIR
POTENTIAL TO BECOME STANDARDS TO
WHICH REFERENCE MAY BE MADE IN
NATIONAL REGULATIONS.
RECIPIENTS OF THIS DRAFT ARE INVITED
IMPORTANT — Please use this updated version dated
TO SUBMIT, WITH THEIR COMMENTS,
2026-03-13 and discard any previous version of this DIS as NOTIFICATION OF ANY RELEVANT PATENT
RIGHTS OF WHICH THEY ARE AWARE AND TO
Table 1 footnote was updated.
PROVIDE SUPPORTING DOCUMENTATION.
Reference number
ISO/DIS 19392-1:2026(en)
DRAFT
ISO/DIS 19392-1:2026(en)
International
Standard
ISO/DIS 19392-1
ISO/TC 35/SC 9
Paints and varnishes — Coating
Secretariat: BSI
systems for wind-turbine rotor
Voting begins on:
blades —
2026-04-02
Part 1:
Voting terminates on:
2026-06-25
Minimum requirements prior
and after weathering and climatic
testing
ICS: 87.040
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENTS AND APPROVAL. IT
IS THEREFORE SUBJECT TO CHANGE
AND MAY NOT BE REFERRED TO AS AN
INTERNATIONAL STANDARD UNTIL
PUBLISHED AS SUCH.
This document is circulated as received from the committee secretariat.
IN ADDITION TO THEIR EVALUATION AS
BEING ACCEPTABLE FOR INDUSTRIAL,
© ISO 2026
TECHNOLOGICAL, COMMERCIAL AND
USER PURPOSES, DRAFT INTERNATIONAL
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
STANDARDS MAY ON OCCASION HAVE TO
ISO/CEN PARALLEL PROCESSING
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
BE CONSIDERED IN THE LIGHT OF THEIR
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
POTENTIAL TO BECOME STANDARDS TO
WHICH REFERENCE MAY BE MADE IN
or ISO’s member body in the country of the requester.
NATIONAL REGULATIONS.
ISO copyright office
IMPORTANT — Please use this updated version dated 2026-03-13,
RECIPIENTS OF THIS DRAFT ARE INVITED
CP 401 • Ch. de Blandonnet 8
and discard any previous version of this DIS as table 1 footnote
TO SUBMIT, WITH THEIR COMMENTS,
CH-1214 Vernier, Geneva
was updated. NOTIFICATION OF ANY RELEVANT PATENT
Phone: [phone]
RIGHTS OF WHICH THEY ARE AWARE AND TO
PROVIDE SUPPORTING DOCUMENTATION.
Email: [e-mail]
Website: www.iso.org
Published in Switzerland Reference number
ISO/DIS 19392-1:2026(en)
ii
ISO/DIS 19392-1:2026(en)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
4 Sampling . 2
5 Preparation of test specimen . 2
6 Test methods for evaluation and requirements . 3
6.1 Initial test methods .3
6.2 Test methods after exposure to weathering, humidity or climate cycling testing .3
7 Test methods for ageing and preconditioning . 4
7.1 Test methods for artificial weathering .4
7.2 Test methods for natural weathering .5
7.3 Test methods for humidity exposure .6
7.4 Test methods for climatic cycling exposure .6
8 Evaluation . 6
9 Test report . 6
Annex A (informative) Test cycles for cyclic exposure . 7
Annex B (informative) Examples after natural exposure .11
Bibliography .12

iii
ISO/DIS 19392-1:2026(en)
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).
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 edition cancels and replaces ISO/TS 19392-1:2018, which has been technically revised.
The main changes are as follows:
— the document type has been changed from ISO/TS to ISO standard;
— peeling strength, fatigue strength (delamination due to blade bending), coating thickness, ice adhesion,
speed of sound and density have been added to the initial test methods (Table 1);
— peeling strength, fatigue strength (delamination due to blade bending), ice adhesion, coating thickness,
speed of sound and density have been added to the test methods and requirements after exposure to
weathering, humidity or climate cycling testing has been added (Table 3);
— the former separate tables on test methods after artificial weathering, test methods after humidity
exposure and test methods after cyclic exposure have been combined in one table (Table 3);
— the weathering methods (Table 4) have been changed;
— Annex B with examples after natural exposure has been added;
— the normative references have been updated.
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
ISO/DIS 19392-1:2026(en)
Introduction
In the wind energy industry, coatings are applied to the surfaces of rotor blades to protect and to
functionalize the glass fibre reinforced polymer composite substrate. Rain drops and hailstones can damage
these coatings in such a way that individual layers come off or the whole coating delaminates from the
substrate.
This document describes the minimum requirements of the coating system, both prior and following
weathering and climate testing. Weathering and climate testing can also serve as pretreatment for rain
erosion testing of leading-edge protection coating systems. Rain erosion can be simulated by means of high-
speed water jets or water droplets impinging on the specimen surface. ISO/TS 19392-2 describes a method
which simulates rain erosion by accelerating one or more coated panels, attached to the end of rotating
arms, through a simulated rain field at a constant rotational velocity. ISO/TS 19392-3 describes a method
where a water jet or a series of water jets at a defined pressure hits the surface of the specimen. Ice adhesion
testing according to ISO/TS 19392-6 can also be performed prior and after weathering and climatic testing.

v
DRAFT International Standard ISO/DIS 19392-1:2026(en)
Paints and varnishes — Coating systems for wind-turbine
rotor blades —
Part 1:
Minimum requirements prior and after weathering and
climatic testing
1 Scope
This document specifies test methods and minimum performance requirements for coating systems
for wind-turbine rotor blades, both prior and following weathering and climatic testing. It provides a
comprehensive summary of appropriate weathering and climatic testing procedures.
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 527-1, Plastics — Determination of tensile properties — Part 1: General principles
ISO 527-3, Plastics — Determination of tensile properties — Part 3: Test conditions for films and sheets
ISO 527-4, Plastics — Determination of tensile properties — Part 4: Test conditions for isotropic and orthotropic
fibre-reinforced plastic composites
ISO 1183-1, Plastics — Methods for determining the density of non-cellular plastics — Part 1: Immersion method,
liquid pycnometer method and titration method
ISO 1513, Paints and varnishes — Examination and preparation of test samples
ISO 2808, Paints and varnishes — Determination of film thickness
ISO 2810, Paints and varnishes — Natural weathering of coatings — Exposure and assessment
ISO 2811-1, Paints and varnishes — Determination of density — Part 1: Pycnometer method
ISO 2813, Paints and varnishes — Determination of gloss value at 20°, 60° and 85°
ISO 4618, Paints and varnishes — Vocabulary
ISO 4624, Paints and varnishes — Pull-off test for adhesion
ISO 4628-2, Paints and varnishes — Evaluation of degradation of coatings — Designation of quantity and size of
defects, and of intensity of uniform changes in appearance — Part 2: Assessment of degree of blistering
ISO 4628-4, Paints and varnishes — Evaluation of degradation of coatings — Designation of quantity and size of
defects, and of intensity of uniform changes in appearance — Part 4: Assessment of degree of cracking
ISO 4892-3, Plastics — Methods of exposure to laboratory light sources — Part 3: Fluorescent UV lamps
ISO 6270-2, Paints and varnishes — Determination of resistance to humidity — Part 2: Condensation (in-cabinet
exposure with heated water reservoir)

ISO/DIS 19392-1:2026(en)
ISO 9227, Corrosion tests in artificial atmospheres — Salt spray tests
ISO 11664-4, Colorimetry — Part 4: CIE 1976 L*a*b* Colour space
ISO 11997-2, Paints and varnishes — Determination of resistance to cyclic corrosion conditi
...