EN ISO 22975-1:2016

SLOVENSKI STANDARD
01-januar-2017
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Solar energy - Collector components and materials - Part 1: Evacuated tubes - Durability
and performance (ISO 22975-1:2016)
Solarenergie - Kollektorbauteile und -materialien - Teil 1: Vakuumröhren - Beständigkeit
und Leistungsfähigkeit (ISO 22975-1:2016)
Energie solaire - Composants et matériaux du collecteur - Partie 1: Tubes sous vide -
Durabilité et performance (ISO 22975-1:2016)
Ta slovenski standard je istoveten z: EN ISO 22975-1:2016
ICS:
27.160 6RQþQDHQHUJLMD Solar energy engineering
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN ISO 22975-1
EUROPEAN STANDARD
NORME EUROPÉENNE
October 2016
EUROPÄISCHE NORM
ICS 27.160
English Version
Solar energy - Collector components and materials - Part 1:
Evacuated tubes - Durability and performance (ISO 22975-
1:2016)
Énergie solaire - Composants et matériaux du Solarenergie - Kollektorbauteile und -materialien - Teil
collecteur - Partie 1: Tubes sous vide - Durabilité et 1: Vakuumröhren - Beständigkeit und
performance (ISO 22975-1:2016) Leistungsfähigkeit (ISO 22975-1:2016)
This European Standard was approved by CEN on 12 September 2016.

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
© 2016 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 22975-1:2016 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
This document (EN ISO 22975-1:2016) has been prepared by Technical Committee ISO/TC 180 "Solar
energy" in collaboration with 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 April 2017, and conflicting national standards shall be
withdrawn at the latest by April 2017.
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 22975-1:2016 has been approved by CEN as EN ISO 22975-1:2016 without any
modification.
INTERNATIONAL ISO
STANDARD 22975-1
First edition
2016-10-01
Solar energy — Collector components
and materials —
Part 1:
Evacuated tubes — Durability and
performance
Énergie solaire — Composants et matériaux du collecteur —
Partie 1: Tubes sous vide — Durabilité et performance
Reference number
ISO 22975-1:2016(E)
©
ISO 2016
ISO 22975-1:2016(E)
© ISO 2016, 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.
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ii © ISO 2016 – All rights reserved

ISO 22975-1:2016(E)
Contents Page
Foreword .v
Introduction .vi
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Classification and test list . 2
5 Testing of material . 3
5.1 Inspection for stones and knots . 3
5.1.1 General. 3
5.1.2 Test conditions. 3
5.1.3 Apparatus . 3
5.1.4 Procedure . 3
5.1.5 Results . 4
5.2 Inspection for scratches . 4
5.2.1 General. 4
5.2.2 Test conditions. 4
5.2.3 Apparatus . 4
5.2.4 Procedure . 4
5.2.5 Results . 5
5.3 Testing of solar transmittance . 5
5.3.1 General. 5
5.3.2 Test conditions and apparatus . 5
5.3.3 Procedure . 5
5.3.4 Results . 5
5.4 Testing of solar absorptance . 5
5.4.1 General. 5
5.4.2 Test conditions and apparatus . 5
5.4.3 Procedure . 5
5.4.4 Results . 6
5.5 Testing of hemispherical emittance . 6
5.5.1 General. 6
5.5.2 Test conditions. 6
5.5.3 Apparatus and procedure . 6
5.5.4 Results . 7
6 Durability testing of evacuated tube . 7
6.1 Vacuum performance . 7
6.1.1 General. 7
6.1.2 Test conditions and apparatus . 7
6.1.3 Procedure . 8
6.1.4 Results . 8
6.2 Resistance to thermal shock . 8
6.2.1 General. 8
6.2.2 Test conditions and apparatus . 9
6.2.3 Procedure . 9
6.2.4 Results . 9
6.3 Resistance to impact .
...