ISO INTERNATIONAL STANDARD 29842 First edition 2011-07-15 Sensory analysis Methodology Balanced incomplete block designs Analyse sensorielle Methodologie - Plans de présentation en blocs incomplets équilibrés Reference number ISO 29842:2011(E) @ ISO 2011 by IHS under lic itted without license from IHS Not for Resale ISO 29842:2011(E) COPYRIGHTPROTECTEDDOCUMENT @ ISO2011 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, Iso's member body in the country of the requester. ISO copyright office Case postale 56. CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail [email protected] Web www.iso.org Published in Switzerland @ ISO 2011 - All rights reserved Tby IHS under itted without license from IHS Not for Resale ISO 29842:2011(E) Contents Page Foreword 1 Scope 2 Normative references 3 Terms and definitions . 4 Specification of balanced incomplete block designs 5 Dataanalysis 5.1 General. 5.2 Analysisofvarianceforratingdata 5.3 Friedman's sum rank analysis for rank data 6 Applicationinsensoryevaluation .6 AnnexA(informative)Catalogueofincompleteblockdesigns.. Annex B (informative) Example of balanced incomplete block design with ratings data..... Annex C (informative) Example of balanced incomplete block design with rank data . Bibliography.... CopyrightIneationalOganzaandardizaoghtsreseved ii se from IHS Not for Resale