ISO INTERNATIONAL STANDARD 10723 Second edition 2012-12-01 Natural gas Performance evaluation for analytical systems Gaz naturel - Evaluation des performances des systemes d'analyse Reference number ISO 10723:2012(E) ISO Copyright intemational Organizatin for Standardizatin @ISO2012 Not for Resale IS0 10723:2012(E) COPYRIGHT PROTECTED DOCUMENT ISO 2012 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either IsO at the addressbeloworIso'smemberbodyinthecountryoftherequester. ISO copyright office Case postale 56 : CH-1211 Geneva 20 Tel.+41227490111 Fax + 41 22 749 09 47 E-mail copyright@iso.org Web www.iso.org Published in Switzerland @ IS0 2012 - All rights reserved Not for Resale IS0 10723:2012(E) Contents Page Foreword ..iv Introduction. ..V 1 Scope. ..1 2 Normative references 3 Terms and definitions ..2 4 Symbols. 3 5 Principle 6 General procedure .5 6.1 Analytical requirements. ..5 6.2 Response function types 6.3 Calibration gas reference data. .7 6.4 Working measurement standards (WMS) ..8 6.5 Experimental design .9 6.6 Calculation procedures 11 7 Interpretation ..16 7.1 General considerations ..16 7.2 Pre-defined performance specification. ..16 7.3 Determination of the analytical range of the instrument .16 7.4 Criteria for selection of hypothetical compositions. .17 Annex A (informative) Example of application using chromatography .18 Annex B (informative) Explanation of approach used for instrument benchmarking ..30 Bibliography ..32 ii thout license from IHS Not for Resale