ISO INTERNATIONAL STANDARD 20613 First edition 2019-03 Sensory analysis General guidance for the application of sensory analysis in quality control Analyse sensorielle - Lignes directrices générales pour I'application de I'analyse sensorielle en controle qualite Reference number IS0 20613:2019(E) so @ IS0 2019 IS0 20613:2019(E) COPYRIGHTPROTECTEDDOCUMENT @ ISO 2019 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 or Iso's member body in the country of the requester. ISO copyright office CP 401 : Ch. de Blandonnet 8 CH-1214 Vernier, Geneva Phone: +4122 749 0111 Fax: +41 22 749 09 47 Email: copyright@iso.org Website: www.iso.org Published in Switzerland ii @ IS0 2019 - All rights reserved IS0 20613:2019(E) Contents Page Foreword ..iv 1 Scope 1 2 Normative references .1 3 Terms and definitions ..1 4 Elements for implementing and maintaining a sensory quality control programme .3 4.1 Assessment from various perspectives. .3 4.2 Sensory analysis in all phases of production process .3 4.3 Consumer-derived sensory specifications 3 4.4 .3 Sensoryandinstrumentaldata 4.5 Detailed quality records .3 5 Procedures to implement a sensory quality control programme 4 5.1 General 4 5.2 Establishing sensory specifications/standards 4 5.2.1 General .4 5.2.2 Paper standard .5 5.2.3 Physical control standard. 5 5.2.4 Preservation and renewal of physical control standards 5 5.3 Selection, training and qualification of assessors in quality control .5 5.3.1 General .5 5.3.2 Assessors for finished product evaluation .5 5.3.3 Assessorsforin-processevaluation .6 5.3.4 Assessors for raw materials evaluation 6 5.4 Appropriate facilities .6 5.5 Sensory method applications. .6 5.5.1 General .6 5.5.2 In-outtest. .7 5.5.3 Difference-from-control test. .7 5.5.4 Descriptive sensory analysis method .8 5.5.5 Difference scoring with key attribute scales test. .8 5.6 Data presentation and integration of control charts .8 5.6.1 General. .8 5.6.2 X chart. 5.6.3 Closeness-to-control standard/conformance to specification chart .9 Bibliography .11 @ IS0 2019 - All rights reserved iii