ISO INTERNATIONAL STANDARD 21041 First edition 2018-11 Guidance on unit pricing Préconisations concernant I'indication des prix a I'unité Referencenumber IS0 21041:2018(E) ISO @IS02018 IS021041:2018(E) COPYRIGHTPROTECTEDDOCUMENT @ISO2018 All rights reserved. Unless otherwise specified, or required in the context of its implementation, 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 orIso's memberbody in the countryof therequester. ISO copyright office CP 401 : Ch. de Blandonnet 8 CH-1214 Vernier, Geneva Phone:+41227490111 Fax:+41 22 749 09 47 Email: [email protected] Website: www.iso.org Published in Switzerland ii @ IS0 2018 - All rights reserved IS021041:2018(E) Contents Page Foreword ..V Introduction.. ...vi 1 Scope. 2 Normative references 3 Terms and definitions ..1 4 Objective ..2 5 Main principles .3 5.1 General. 3 5.2 Provision.. .3 5.3 Units ofmeasure .3 5.4 Displaying unit price .3 5.5 Consistency 3 5.6 Planning, implementing and monitoring .3 5.7 Communication .3 5.8 Consumereducation .3 6 Provision of unit price ..4 6.1 General. 4 6.2 Consistencyofprovision ofunitprice .4 6.3 Special offers. .4 7 Unitsofmeasure .4 7.1 General .4 7.2 Consistency ofmeasure .5 7.3 Measurement and calculation 5 7.3.1 Accuracy .5 7.3.2 Rounding. .5 8 Displaying unit price 5 8.1 General .5 8.2 Location (proximity to selling price) ..5 8.3 Font type.. .6 8.4 Fontsize 6 8.5 Colour and contrast .6 8.6 White space. .6 8.7 Border(s) and box .6 8.8 Expression of"unit price" 6 8.9 Obscuring. .6 8.10 Format. ..6 8.11 Symbols and abbreviations .6 8.12 Monetarydenomination 8.13 Consistencyof displayingunitprice .7 8.14 Non-ambiguity .7 9 Provision and display in-store 9.1 General 7 9.2 Lower shelves in-store .7 9.3 Viewing distance and angle 7 9.4 Surfacereflection. .7 10 Provision and display online .7 11 Provision and displayinadvertising 12 Establishing a newin-storeoronlineunit pricing system 13 Consumereducation IS0 2018 - All rights reserved iii