ISO INTERNATIONAL STANDARD 13348 Second edition 2007-01-15 Industrial fans Tolerances, methods of conyersion and technical data presentation Ventilateurs industriels - Tolerances, méthodes de conversion et presentationdesdonneestechniques Reference number ISO 13348:2007(E) @ ISO 2007 ISO 13348:2007(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 shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In downloading this file, parties accept therein the responsibility of not infringing Adobe's licensing policy. The Iso Central Secretariat accepts no liability in this area. Adobe is a trademark of Adobe Systems 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 ?ISO2007 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 address below or 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 ISO 2007-All rights reserved ISO 13348:2007(E) Contents Page Foreword. iv Introductior 1 Scope 2 Normative references 3 Terms and definitions. 2 4 Symbols and units. 6 5 Performance tolerances for purpose-designed fans and series-produced non-certified fans. 8 5.1 Information to be provided by the purchaser. 8 5.2 Information to be provided by the supplier 9 5.3 Tolerances......... 10 5.4 Purchasingarrangements 12 5.5 Contractual testing .. 12 Performance tolerances for series-produced fans in certified ratings programmes .. 6.1 General... 21 6.2 Fanlaws 22 6.3 Check-tests.. 22 6.4 Air performance tolerances .. 22 6.5 Sound tolerances. 26 L Methods of conversion...... 27 7.1 Conversionofairperformancetestdata.. 27 7.2 Conversion of sound power test data . 34 8 Technical data presentation .. 42 8.1 General.. 42 8.2 Essential information .... 42 8.3 Fanperformancechart 42 8.4 Additional information.. 44 Annex A (normative) Documentation... 47 Annex B (normative) Marking .. 48 Annex C (informative) System resistance as a function of flowrate.... .49 Bibliography ... 52 cationforStand ion'ghts reserved ili ISO 13348:2007(E) Foreword (isO member bodies). The work of preparing International Standards is normally carried out through been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with isO, also take part in the work. IsO collaborates closely with the 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 rights. IsO shall not be held responsible for identifying any or all such patent rights. ISO 13348 was prepared by Technical Committee ISO/TC 117, Industrial fans. @ ISO 2007 - All rights reserved ISO 13348:2007(E) Introduction This International Standard endeavours to clarify those technical aspects of contracts where fan performance is concerned, and the accuracy and consistency of performance details published in technical catalogues. In this International Standard a distinc