ISO INTERNATIONAL STANDARD 15403-1 First edition 2006-10-15 Natural gas Natural gas for use as a compressed fuel for vehicles Part 1: Designation of the quality Gaz naturel Gaz naturel pour usage comme carburant comprimé pour véhicules - Partie 1: Désignation de la qualité Reference number ISO 15403-1:2006(E) Licensed to:Qin, O Downloaded:201 Single user licenc Eand networking prohibited @ ISO 2006 ISO 15403-1:2006(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may be printed or viewed but accepts no liability in this area. Adobe is a trademarkof AdobeSystems Incorporated. Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation parameters were optimized for printing. Every care has been taken to ensure that the file is suitable for use by IsO member bodies. In the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below ?ISO2006 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, ISO's member body in the country of the requester. ISO copyright office Case postale 56 . CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail [email protected] Web www.iso.org Published in Switzerland Licensed to:Qin, Luo Mrs. Downloaded:2015-07-17 Single user licence only, copying and networking prohibited ii @ISO2006-All rights reserved ISO 15403-1:2006(E) Contents Page Foreword. Introduction 1 Scope 2 Normative references. 3 Terms and definitions 4 Symbolsandabbreviations... 5 Gas composition requirements. 0 6 Gas properties.. 11 7 Driveability. 12 8 Test methods. 12 9 Sampling... AnnexA(informative)Propaneandbutanecontent Annex B (informative) Wobbe index range.. Annex C (informative) Engine knock..... Annex D (informative) Methane number and octane number Annex E (informative) Water content of natural gas.... Bibliography .... Licensed to:Qin, Luo Mrs. Downloaded:2015-07-17 ngleuser licenceonly,copying and networking prohibited @Is02006-All rights reserved ii ISO 15403-1:2006(E) Foreword IsO (the International Organization for Standardization) is a worldwide federation of national standards bodies (isO member bodies). The work of preparing International Standards is normally carried out through IsO non-governmental,inliaisonwithIsO,also take partin the work.Iso collaborates closely withthe International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/lEc Directives, Part 2 The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent ISO 15403-1 was prepared by Technical Committee ISO/TC 193, Natural gas. This first edition of IsO 15403-1 cancels and replaces ISO 15403:2000, of which it constitutes a minor revision including the following changes: correction of the title to reflect that IsO 15403 is now formed of two parts; reformat the document in accordance with the ISO/lEc Directives, Part 2, Fifth edition, 2004 reformat the references cited in Clause 2 and in the Bibliography, in accordance with the ISO/lEC Directives, Part 2, Fifth edition, 2004. IsO 15403 consists of the following parts, under the general title Natural gas — Natural gas for use as a compressedfuelforvehicles: Part 1: Designation of the quality Part 2: Specification of the quality (Technical Report) Licensedto:Qin,LuoMrs Downloaded:2015-07-17 Single userlicence only, copying and networking prohibited