International Standard Iso 15686-5
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INTERNATIONAL ISO STANDARD 15686-5 Second edition 2017-07 Buildings and constructed assets — Service life planning — Part 5: Life-cycle costing Bâtiments et biens immobiliers construits — Prévision de la durée de vie — Partie 5: Approche en coût global This is a free 6 page sample. Access the full version online. Reference number ISO 15686-5:2017(E) © ISO 2017 ISO 15686-5:2017(E) This is a free 6 page sample. Access the full version online. COPYRIGHT PROTECTED DOCUMENT © ISO 2017, Published in Switzerland All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form orthe by requester. 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 Ch. de Blandonnet 8 • CP 401 ISOCH-1214 copyright Vernier, office Geneva, Switzerland Tel. +41 22 749 01 11 Fax +41 22 749 09 47 www.iso.org [email protected] ii © ISO 2017 – All rights reserved ISO 15686-5:2017(E) Contents Page Foreword ..........................................................................................................................................................................................................................................v Introduction ................................................................................................................................................................................................................................vi 1 Scope ................................................................................................................................................................................................................................. 1 2 Normative references ...................................................................................................................................................................................... 1 3 Terms and definitions ..................................................................................................................................................................................... 1 3.1 Costs ................................................................................................................................................................................................................. 1 .............................................................................................................................................................................. 3 3.3 Elements of calculation .................................................................................................................................................................... 4 3.23.4 Analysis/measuresOther terms ................................................................................................................................................................................................ 5 4 Principles of life-cycle costing ................................................................................................................................................................ 6 ............................................................................................................................. 6 ............................................................................................................................................... 6 4.1 Purpose and scope of life-cycle costing .................................................................................. 6 4.2 Costs to include in LCC analysis ................................................................................................................................................... 7 4.2.1 Defining scope of costs included in the analysis ................................................................................................. 9 4.2.2 Classification of costs ..................................10 4.3 Typical4.4.1 analysisScope based at different on client stages requirements of the life ............................................................................................................cycle 10 4.4 Analysis based on client requirements and the ............................................................................................................. intended use of the results 11 4.4.3 Strategic level project planning — Evaluation of strategic alternatives .......................12 4.4.2 Decisions informed by LCC analysis design appraisals ..........................................................................................................................................................13 4.4.44.4.5 SystemService andlife planningdetailed decision— LCC plans level ................................................................................................................. — Integrating life-cycle costing into 14 4.4.6 Major repairs, replacements and adaptations ....................................................................................14 4.4.7 End of life .............................................................................................................................................................................15 ........................................................................15 4.5.1 General...................................................................................................................................................................................15 4.5 Data for analysis at different stages ........................................................................................................................................ of the project life cycle 15 ................................................................................................................................................15 4.6 Cost4.5.2 variablesBenchmark ........................................................................................................................................................................................ LCC analysis 16 4.5.3 Detailed LCC analysis ..............................................................16 4.8 Discounting costs to present values ..................................................................................................................................17 4.74.9 CalculatingApproval and cost validation variables ............................................................................................................................................................... and the form of future costs analysis 17 .................................................................................................................................................................17 5 Setting the scope for LCC analysis ....................................................................................................................................................17 4.10 Reporting LCC analysis ...................17 This is a free 6 page sample. Access the full version online. .................................................................................................................................18 5.1 Relevance and importance ............................................................................................................................................................................... of setting parameters for the use of life-cycle costing 18 5.25.4 ServiceCost variables life, life ........................................................................................................................................................................................ cycle and design life 19 5.3 Period5.4.1 ofAcquisition analysis costs ...........................................................................................................................................................19 5.4.2 Operation, maintenance and replacement costs ...............................................................................19 5.4.3 Costs at disposal ............................................................................................................................................................21 5.4.4 End-of-life residual valuations ..........................................................................................................................21 5.4.5 Discount rate ....................................................................................................................................................................22 ................................................................................................................................................................................22 5.4.7 Taxes and subsidies ....................................................................................................................................................22 5.4.65.4.8 InflationChanges in costs over time ...................................................................................................................................23 ......................................................................................................................................23 6 WLC variables used in some investment appraisals ....................................................................................................23 5.4.9 Energy and utilities