ISO INTERNATIONAL STANDARD 13734 Secondedition 2013-11-01 Natural gas - Organic components used as odorants Reguirements and test methods Gaz naturel - Composés organiques utiliseés comme odorisants - Exigences et méthodes d'essai Reference number ISO 13734:2013(E) LSO @ IS0 2013 IHS under ted without license from IHS Not for Resale IS0 13734:2013(E) COPYRIGHTPROTECTEDDOCUMENT @ISO2013 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 Case postale 56:CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax:+ 41 22 749 09 47 E-miail [email protected] Web www.iso.org Published in Switzerland @ IS0 2013 - All rights reserved networking permitted without license from IHS Not for Resale IS0 13734:2013(E) Contents Page Foreword ..iv Introduction. .. 1 Scope. 2 Normative references 3 Terms and definitions ..1 4 Requirements. 4.1 Recommendations of an effective odorant .2 4.2 Composition of odorants .3 4.3 Cloud point. .3 4.4 Phase properties .3 4.5 Evaporation residue 3 4.6 Insoluble matter 4.7 Solubility in water.. .3 5 Handling and transport. .4 6 Tests. .4 6.1 Test sample. 6.2 Test documentation. 4 6.3 Determination of composition ..4 6.4 Determination of cloud point 4 6.5 Determination of phase properties 4 6.6 Determination of evaporation residue .4 6.7 Visual examination for solids or suspended matter .5 6.8 Determination of solubility in water. 7 Labelling and documentation .5 7.1 Labelling. .5 7.2 Documentation ..6 Annex A (informative) Properties of odorants 7 iii ded by IHS under license with ISt ed without license from IHS Not for Resale