ISO INTERNATIONAL STANDARD 8178-8 Second edition 2015-08-15 Reciprocating internal combustion engines Exhaust emission measurement - Part 8: Engine group determination Moteurs alternatifs a combustion interne - Mesurage des émissions de gaz d'eéchappement - Partie 8: Détermination des groupes de moteurs Reference number IS0 8178-8:2015(E) SO International Organization for Standardization @ IS0 2015 ed without license from IHS IS0 8178-8:2015(E) COPYRIGHTPROTECTEDDOCUMENT IS02015,PublishedinSwitzerland 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 copyrightoffice Ch. de Blandonnet 8 . CP 401 CH-1214 Vernier, Geneva, Switzerland Tel. +41 22 749 01 11 Fax +4122 749 09 47 copyright@iso.org www.iso.org prganizationfor Standardization Not for Resale, 2015/11/11 09:00:23 etworking permitted without license from IHS IS0 8178-8:2015(E) Contents Page Foreword ..iv Introduction. 1 Scope. 2 Terms and definitions 3 General 4 Parameters defining the engine group ..2 5 Guidelines for allowable adjustment or modification within an engine group ..4 5.1 Conditions for modification and adjustment. .4 5.2 Examples of adjustments and modifications ..4 Guidelines for the choice of the parent engine .5 Inteatinal oganzation @stS201.5 - All rights reserved iii see=Zhejiang Institute of Standardization 5956617 vided by IHS underI vithoutlicense from IHS Not for Resale, 2015/11/11 09:00:23