ISO INTERNATIONAL STANDARD 9806 Second edition 2017-09 Solar energy Solar thermal collectors Test methods Energie solaire - Capteurs thermiques solaires - Méthodes d'essai Reference number IS0 9806:2017(E) ISO @IS02017 IS0 9806:2017(E) COPYRIGHTPROTECTEDDOCUMENT IS0 2017,Published in Switzerland All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form written permission. Permission can be requested from either ISO at the address below or ISO's member body in the country of the requester. IsOcopyrightoffice Ch. de Blandonnet 8 . CP 401 CH-1214 Vernier, Geneva, Switzerland Tel. +41 22 749 01 11 Fax +41 22 749 09 47 [email protected] www.iso.org ii @ IS0 2017 - All rights reserved IS0 9806:2017(E) Contents Page Foreword .viii Introduction. ..ix 1 Scope. 2 Normative references 3 Terms and definitions 4 Symbols. ..2 5 General. .5 5.1 Test overview Sequence of the tests .5 5.2 Testing of collectors with specific attributes 5.2.1 General ...6 5.2.2 Collectors using external power sources and collectors with active or passive measures for normal operation and self-protection. .6 5.2.3 Collectors co-generating thermal and electrical power. 5.2.4 Wind and/or infrared sensitive collectors (WISC) 7 5.2.5 Facade collectors. ..7 5.2.6 Air and liquid heating collectors ..8 Internal pressure tests for fluid channels .8 6 6.1 Objective. .8 6.2 Fluid channels made of non-polymeric materials ..8 6.2.1 Apparatus and procedure .8 6.2.2 Test conditions. .8 6.3 Fluid channels made of polymeric materials ..8 6.3.1 Apparatus and procedure. 6.3.2 Test conditions. .9 6.4 Results and reporting .9 7 Air leakage rate test (air heating collectors only) 7.1 Objective .9 7.2 Apparatus and procedure 7.3 Test conditions. .10 7.4 Results and reporting .10 8 Rupture or collapse test (air heating collectors only) ..10 8.1 Objective.. ..10 8.2 Apparatus and procedure ..10 8.2.1 General .10 8.2.2 Closed-loop collectors .11 8.2.3 Open to ambient collectors ..11 8.3 Results and reporting. .11 9 Standard stagnation temperature .11 9.1 Objective. ..11 9.2 Testing under stagnation conditions ..12 9.3 Measurement and extrapolation of standard stagnation temperature ..12 9.4 Determining standard stagnation temperature using efficiency parameters ..12 9.5 Results and reporting. .13 10 Exposure and half-exposure test. .13 10.1 Objective .13 10.2 Initial outdoor exposure .13 10.3 Method 1 ..14 10.4 Method 2. .14 10.5 Method 3. ..14 10.6 Test conditions. .14 @ IS0 2017 - All rights reserved iii