ISO INTERNATIONAL STANDARD 24516-3 First edition 2017-09 Guidelines for the management of assets of water supply and wastewater systems Part 3: Wastewater collection networks Lignes directrices pour la gestion d'actifs des systemes d'eaux usées et d'eau potable- Partie3:Réseauxd'assainissement Reference number IS0 24516-3:2017(E) ISO @IS02017 IS024516-3:2017(E) COPYRIGHTPROTECTEDDOCUMENT @ IS0 2017, Published in Switzerland or by anymeans, electronic ormechanical, 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 ii IS0 2017-Allrights reserved IS024516-3:2017(E) Contents Page Foreword .V Introduction. vi 1 Scope 1 2 Normativereferences 3 Terms and definitions 1 Principal aspects of the management of assets 5 4 4.1 Objectives and requirements. 5 4.1.1 Objectives 5 4.1.2 Functional requirements 5 4.1.3 Performance requirements 6 4.2 General aspects 8 4.2.1 General. 8 4.2.2 8 4.2.3 Principal aspects - Wastewatersystems 9 4.2.4 Integrating the principal aspects 9 4.3 Specific aspects. 9 4.3.1 Risk 9 4.3.2 Life cycle. .11 4.4 Structuring the process for the management of assets .11 4.4.1 General 11 4.4.2 Strategies forthemanagement of assets .12 4.4.3 Periods of planning .13 4.4.4 Strategiclevelactivities .14 4.4.5 Tactical level activities. .14 4.4.6 Operational level activities .14 5 Investigation .15 5.1 .15 General 5.2 Purpose of investigation .15 5.3 Determine the scope ofthe investigation .15 5.4 Types of investigation .16 5.4.1 Hydraulic investigation .16 5.4.2 Environmental investigation .16 5.4.3 Structural investigation .16 5.4.4 Operational investigation .17 5.5 Data collection. .17 5.5.1 General. .17 5.5.2 Data requirements. .17 5.5.3 Inventory data. .17 5.5.4 Failure data .18 5.5.5 Further condition data. .19 5.6 Data registering and data assignment 20 5.6.1 Data registering. 20 5.6.2 Data assignment .21 5.6.3 Geo-referencing .21 5.7 Review existing information 21 5.8 Inventory update. .21 5.9 Review of performance information .21 5.10 Planning of investigation .22 5.11 Performance testing .22 .23 6 Assessment 6.1 .23 Principles 6.2 Assessmentofthehydraulicperformance .23 @ IS0 2017 - All rights reserved iii