EN ISO 22975-3:2014

SLOVENSKI STANDARD
01-september-2014
6RQþQDHQHUJLMD6HVWDYQLGHOLLQPDWHULDOLVSUHMHPQLNRYVRQþQHHQHUJLMHGHO
2EVWRMQRVWSRYUãLQHDEVRUEHUMD,62
Solar energy - Collector components and materials - Part 3: Absorber surface durability
(ISO 22975-3:2014)
Thermische Solaranlagen und ihre Bauteile - Kollektoren - Teil 3: Qualifizierung der
Beständigkeit von Solarabsorberflächen (ISO 22975-3:2014)
Energie solaire - Composants et matériaux du collecteur - Partie 3: Durabilité de la
surface de l'absorbeur (ISO 22975-3:2014)
Ta slovenski standard je istoveten z: EN ISO 22975-3:2014
ICS:
27.160 6RQþQDHQHUJLMD Solar energy engineering
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN ISO 22975-3
NORME EUROPÉENNE
EUROPÄISCHE NORM
July 2014
ICS 27.160
English Version
Solar energy - Collector components and materials - Part 3:
Absorber surface durability (ISO 22975-3:2014)
Energie solaire - Composants et matériaux du collecteur - Thermische Solaranlagen und ihre Bauteile - Kollektoren -
Partie 3: Durabilité de la surface de l'absorbeur (ISO 22975- Teil 3: Qualifizierung der Beständigkeit von
3:2014) Solarabsorberflächen (ISO 22975-3:2014)
This European Standard was approved by CEN on 7 May 2014.

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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, 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: Avenue Marnix 17, B-1000 Brussels
© 2014 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 22975-3:2014 E
worldwide for CEN national Members.

ContentsPage
Foreword .3

Foreword
The text of ISO 22975-3:2014 has been prepared by Technical Committee ISO/TC 180 “Solar energy” of the
International Organization for Standardization (ISO) and has been taken over as EN ISO 22975-3:2014 by
Technical Committee CEN/TC 312 “Thermal solar systems and components” the secretariat of which is held
by ELOT.
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 January 2015, and conflicting national standards shall be withdrawn at
the latest by January 2015.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. CEN [and/or CENELEC] 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, Former Yugoslav Republic of Macedonia, France, Germany, Greece,
Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,
Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom.
Endorsement notice
The text of ISO 22975-3:2014 has been approved by CEN as EN ISO 22975-3:2014 without any modification.
INTERNATIONAL ISO
STANDARD 22975-3
First edition
2014-07-01
Solar energy — Collector components
and materials —
Part 3:
Absorber surface durability
Energie solaire — Composants et matériaux du collecteur —
Partie 3: Durabilité de la surface de l’absorbeur
Reference number
ISO 22975-3:2014(E)
©
ISO 2014
ISO 22975-3:2014(E)
© ISO 2014
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
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Published in Switzerland
ii © ISO 2014 – All rights reserved

ISO 22975-3:2014(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Requirements and classification . 2
5 Test methods for assessing material properties as measure of absorber performance .3
5.1 Sampling and preparation of test specimens . 3
5.2 Sample conditioning. 4
5.3 Solar absorptance . 4
5.4 Thermal emittance . 4
5.5 Adhesion . 4
6 Tests for assessing the thermal stability of absorber surfaces . 4
6.1 Principle . 4
6.2 Apparatus . 5
6.3 Procedure for execution of high temperature tests. 6
6.4 Qualification procedure . 7
7 Tests for determining the resistance to condensed water of absorber surfaces .7
7.1 Principle . 7
7.2 Apparatus . 8
7.3 Procedure for execution of constant condensation tests . 9
7.4 Qualification procedure .10
8 Test for determining absorber surface corrosion resistance to high humidity air
containing sulfur dioxide.10
8.1 Principle .10
8.2 Apparatus .11
8.3 Reference test specimen .12
8.4 Procedure for execution of corrosion test in high humidity air containing sulfur dioxide 12
8.5 Determination of shortest acceptable failure times in test by use of reference
test specimens .13
8.6 Qualification procedure .13
9 Test report .14
Annex A (normative) Procedure for determination of solar absorption and thermal emittance of
absorber surfaces .15
Annex B (normative) Temperature and failure time characteristics in assessment of thermal
stability of absorber surface .19
Annex C (normative) Temperature/condensation and failure time characteristics together
with qualification scheme in assessment of resistance to condensed water of
absorber surface .25
Annex D (informative) Suitable designs for test apparatus to be used in the qualification testing of
solar absorber surfaces .28
Bibliography .30
ISO 22975-3:2014(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 d
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