ISO INTERNATIONAL STANDARD 9060 Secondedition 2018-11 Solar energy - Specification and classification of instruments for measuring hemispherical solar and direct solar radiation Energie solaire - Speécification et classification des instruments de mesurage du rayonnement solaire hémispherique et direct Reference number IS0 9060:2018(E) rso @IS02018 IS0 9060:2018(E) COPYRIGHTPROTECTEDDOCUMENT @ IS0 2018 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 Fax: +41 22 749 09 47 Email: [email protected] Website: www.iso.org Published in Switzerland i @ IS0 2018 - All rights reserved IS0 9060:2018(E) Contents Page Foreword ..iv Introduction. ..V 1 Scope. ..1 2 Normative references 3 Terms and definitions ..1 4 Instruments to measure hemispherical solar radiation - Pyranometers .3 4.1 General physical design .3 4.2 Types. .4 4.3 Classification. .4 4.3.1 General .4 4.3.2 Pyranometer specifications .5 4.3.3 Classification criteria 7 4.3.4 Identification of classification ..8 5 Instruments to measure direct solar radiation-Pyrheliometers .8 5.1 General physical design .8 5.2 Types. .9 5.2.1 Absolute pyrheliometer .9 5.2.2 Compensation pyrheliometer .9 5.2.3 Pyrheliometers without self-calibration capability .9 5.3 Classification. ..9 5.3.1 General .9 5.3.2 Pyrheliometer specifications 10 5.3.3 Classification criteria .10 5.3.4 Identification of classification .11 6 Final remarks ..12 Annex A (informative) Comments on the specifications given in Tables 1 to 2. ..14 Bibliography .18 @ IS0 2018 - All rights reserved ii