ISO INTERNATIONAL STANDARD 13381-1 Secondedition 2015-09-15 Condition monitoring and diagnostics of machines - Prognostics - Part 1: General guidelines Surveillance et diagnostic des machines-Pronostic- Partie 1: Lignes directrices generales Reference number ISO13381-1:2015(E) LSO Intermational Organization for Standardization @IS02015 ted without license from IHS IS013381-1:2015(E) COPYRIGHTPROTECTEDDOCUMENT IS02015,Published inSwitzerland 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 +4122 749 09 47 [email protected] www.iso.org Intemationaibr PrganizationforStandardization etworking permitted without license from IHS NotforResale, 2015/11/30 07:12:40 IS0 13381-1:2015(E) Contents Page Foreword ..iv Introduction. ..V 1 Scope.. 2 Normative references 3 Termsanddefinitions ..1 4 Data requirements .3 5 Prognosis concepts. .4 5.1 Basic concepts .4 5.2 Influencefactors .5 5.3 Trending, setting alert, alarm, and trip (shutdown) limits .7 5.4 Multiple parameter analysis. 5.5 Initiation criteria. .10 5.6 Prognosis of failuremode initiation 11 6 Failure and deterioration models used for prognostics .12 6.1 Failure modebehaviourmodelling concepts ..12 6.2 Modelling types.. ..13 7 Genericprognosisprocess .13 7.1 Prognosis confidencelevels .13 7.2 Prognosis process. .14 7.2.1 General ..14 7.2.2 Pre-processing .14 7.2.3 Existingfailuremodeprognosisprocess .15 7.2.4 Future failuremodeprognosis process .15 7.2.5 Post-action prognosis .15 7.3 Prognosis report.. ..16 Annex A (normative) Condition monitoring flow chart .17 Annex B (informative) Example prognosis confidence level determination ..18 AnnexC (informative)Failure modellingtechniques ..19 Bibliography .21 iii ndardization 5956617 hout license from IHS