Paints and varnishes - Coating systems for wind-turbine rotor blades - Part 5: Measurement of transmittance properties of UV protective coatings (ISO/TS 19392-5:2023)

This document specifies a test method to measure the ultraviolet (UV) and visible (VIS) spectral transmittance  in  the  wavelength  range  from  280  nm  to  700  nm  of  coatings  for  wind  turbine  rotor  blades. Single and multilayer coatings or coating systems can be tested.
From the spectral transmittance the transmittance of UV, VIS and the combined UV and VIS wavelength range can be calculated.
It is applicable to free coatings films or coatings applied on a UV-transparent quartz substrate.

Beschichtungsstoffe - Beschichtungssysteme für Rotorblätter von Windenergieanlagen - Teil 5: Messung der Transmissionseigenschaften von UV-Schutzbeschichtungen (ISO/TS 19392-5:2023)

Matériaux de revêtement pour pales de turbines éoliennes - Partie 5: Mesurage des propriétés du facteur de transmission des revêtements de protection anti UV (ISO/TS 19392-5:2023)

Barve in laki - Premazni sistemi za lopatice rotorjev vetrnih turbin - 5. del: Merjenje transmitance zaščitnih premazov proti UV-svetlobi (ISO/TS 19392-5:2023)

General Information

Status
Published
Public Enquiry End Date
02-May-2024
Publication Date
13-Aug-2024
Technical Committee
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
19-Jul-2024
Due Date
23-Sep-2024
Completion Date
14-Aug-2024

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SLOVENSKI STANDARD
01-september-2024
Barve in laki - Premazni sistemi za lopatice rotorjev vetrnih turbin - 5. del: Merjenje
transmitance zaščitnih premazov proti UV-svetlobi (ISO/TS 19392-5:2023)
Paints and varnishes - Coating systems for wind-turbine rotor blades - Part 5:
Measurement of transmittance properties of UV protective coatings (ISO/TS 19392-
5:2023)
Beschichtungsstoffe - Beschichtungssysteme für Rotorblätter von Windenergieanlagen -
Teil 5: Messung der Transmissionseigenschaften von UV-Schutzbeschichtungen
(ISO/TS 19392-5:2023)
Matériaux de revêtement pour pales de turbines éoliennes - Partie 5: Mesurage des
propriétés du facteur de transmission des revêtements de protection anti UV (ISO/TS
19392-5:2023)
Ta slovenski standard je istoveten z: CEN ISO/TS 19392-5:2024
ICS:
87.040 Barve in laki Paints and varnishes
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

CEN ISO/TS 19392-5
TECHNICAL SPECIFICATION
SPÉCIFICATION TECHNIQUE
July 2024
TECHNISCHE SPEZIFIKATION
ICS 87.040
English Version
Paints and varnishes - Coating systems for wind-turbine
rotor blades - Part 5: Measurement of transmittance
properties of UV protective coatings (ISO/TS 19392-
5:2023)
Matériaux de revêtement pour pales de turbines Beschichtungsstoffe - Beschichtungssysteme für
éoliennes - Partie 5: Mesurage des propriétés du Rotorblätter von Windenergieanlagen - Teil 5:
facteur de transmission des revêtements de protection Messung der Transmissionseigenschaften von UV-
anti UV (ISO/TS 19392-5:2023) Schutzbeschichtungen (ISO/TS 19392-5:2023)
This Technical Specification (CEN/TS) was approved by CEN on 24 June 2024 for provisional application.

The period of validity of this CEN/TS is limited initially to three years. After two years the members of CEN will be requested to
submit their comments, particularly on the question whether the CEN/TS can be converted into a European Standard.

CEN members are required to announce the existence of this CEN/TS in the same way as for an EN and to make the CEN/TS
available promptly at national level in an appropriate form. It is permissible to keep conflicting national standards in force (in
parallel to the CEN/TS) until the final decision about the possible conversion of the CEN/TS into an EN is reached.

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, Türkiye 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
© 2024 CEN All rights of exploitation in any form and by any means reserved Ref. No. CEN ISO/TS 19392-5:2024 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
The text of ISO/TS 19392-5:2023 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
of which is held by DIN.
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.
Any feedback and questions on this document should be directed to the users’ national standards body.
A complete listing of these bodies can be found on the CEN website.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to announce this Technical Specification: 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, Türkiye and the
United Kingdom.
Endorsement notice
The text of ISO/TS 19392-5:2023 has been approved by CEN as CEN ISO/TS 19392-5:2024 without any
modification.
TECHNICAL ISO/TS
SPECIFICATION 19392-5
First edition
2023-03
Paints and varnishes — Coating
systems for wind-turbine rotor
blades —
Part 5:
Measurement of transmittance
properties of UV protective coatings
Matériaux de revêtement pour pales de turbines éoliennes —
Partie 5: Mesurage des propriétés du facteur de transmission des
revêtements de protection anti UV
Reference number
ISO/TS 19392-5:2023(E)
ISO/TS 19392-5:2023(E)
© ISO 2023
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
ISO/TS 19392-5:2023(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
5.1 Film applicator for coating material . 2
5.2 Substrate for free coating film preparation . 2
5.2.1 Preparation of free film and test specimen . 2
5.2.2 Coating application . . 3
5.3 Film thickness measurement . 3
5.4 UV/VIS spectrophotometer . 3
5.5 Long pass specification for check . 4
6 Test procedure .4
6.1 Test procedure with spectrophotometer . 4
6.2 Check of spectrophotometer with long pass filter . 5
6.3 Spectral transmittance of the specimen (film). 6
6.4 Calculation of transmittance . 6
7 Precision . 6
8 Test report . 6
Annex A (normative) Check of the spectral transmittance of the long pass filter .8
Annex B (informative) Application and evaluation references . 9
Bibliography .11
iii
ISO/TS 19392-5:2023(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 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: 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.
A list of all parts in the ISO/TS 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/TS 19392-5:2023(E)
Introduction
In the wind energy industry, coatings are applied to rotor blades surface to protect the glass fibre
reinforced polymer composite substrate from environmental stresses. 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 applies mostly to the leading edge. Glass fibre reinforced polymer composites
and other blade materials can be also sensitive to UV degradation and thus can be damaged during
outdoor operation, if not protected accurately against irradiation by solar radiation. Failure of
protection can lead to delamination and a subsequent failure of the full blade.
An important function of the rotor blade coating is therefore to protect the blade material from UV
radiation. This applies to the leading edge, but also to the other surface areas of the blade.
The damage by solar radiation is mainly induced by the most energetic ultraviolet (UV) radiation, but
also visible (VIS) radiation (e.g. violet or blue radiation) is still
...

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