ISO INTERNATIONAL STANDARD 13351 Second edition 2009-11-15 Fans Dimensions Ventilateurs -Dimensions Reference number ISO 13351:2009(E) @ ISO 2009 ISO 13351:2009(E) PDFdisclaimer 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 COPYRIGHTPROTECTEDDOCUMENT ? ISO2009 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 @IsO2009-All rights reserved ISO 13351:2009(E) Contents Page Foreword. iv Introduction 1 Scope 2 Normative references 3 Terms, definitions and symbols.. 4 Requirements 4.1 General....... 4.2 Circular flanges 4.3 Rectangular flanges. 4.4 Designation of fan size 12 Bibliography .. 13 raanizationforStandar zalion'ghts reserved ili