ISO INTERNATIONAL STANDARD 13350 Second edition 2015-10-01 Fans Performance testing of jet fans Ventilateurs - Essai de performance des ventilateurs accélérateurs Reference number ISO 13350:2015(E) ISO International Organization for Standardization isee=Zhejang Institute of Standardization 5956617 @IS02015 vided by IHS under I Not for Resale, 2015/11/30 07:12:29 No reproduction or networking permitted without license from IHS IS0 13350:2015(E) COPYRIGHTPROTECTEDDOCUMENT IS0 2015, Published in Switzerland All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below or ISO's member body in the country of the requester. ISO copyright office Ch. de Blandonnet 8 . CP 401 CH-1214 Vernier, Geneva, Switzerland Tel. +41 22 749 01 11 Fax +41 22 749 09 47 [email protected] www.iso.org Internatinai br DrganizationforStandardization HS und Not for Resale, 2015/11/30 07:12:29 networking permited without license from IHS IS0 13350:2015(E) Contents Page Foreword ..V Introduction. ..vii 1 Scope. 2 Normative references 3 Terms and definitions 4 Symbols and abbreviated terms ..4 5 Characteristics to be measured ..5 5.1 General. .5 5.2 Thrust.. ..6 5.3 Inputpower ..6 5.4 Sound levels 5.5 Vibration velocity .6 5.6 Volume flowrate. ..6 6 Instrumentation and measurements 6.1 Dimension and areas .6 6.2 Rotational speed. 6.3 Thrust. .6 6.3.1 Force balance systems .6 6.3.2 Force transducers.. .6 6.4 Inputpower .7 6.5 Sound level ..7 6.6 Vibration velocity. .7 6.7 Volume flowrate. 6.7.1 Instruments for the measurement of pressure .7 6.7.2 Instruments for the measurement of temperature 7 7 Determination of thrust. 7.1 General. .7 7.2 Suspended configuration 7.3 Supported configuration .9 7.4 Test procedures. .. 12 7.5 Test enclosure. ..13 8 Determination of sound level ..13 8.1 General ..13 8.2 Test arrangement. .14 8.3 Enclosure suitability .15 8.4 Measurement procedure ..15 9 Determination of vibration velocity ..16 9.1 General. .16 9.2 Test arrangement. ..16 9.3 Test procedure. ..16 9.4 Acceptance vibration velocity ..16 10 Determination of flowrate ..17 10.1 General. ..17 10.2 Upstream chamber method .17 10.3 UpstreamPitottraversemethod .18 10.4 Directly connected flowrate-measuring device. ..18 11 Presentation of results .20 11.1 Product description. .20 11.2 Product performance 21 ii icensee=Zhejiang Institute of Standardization 5956617 ed without license from IHS Not for Resale, 2015/11/30 07:12:29