ISO INTERNATIONAL STANDARD 17715 First edition 2013-02-01 Flour from wheat (Triticum aestivum L.) Amperometric method for starch damage measurement Farine de ble tendre (Triticum aestivum L.) - Meéthode amperometrique pour le mesurage de I'endommagement de I'amidon Reference number ISO 17715:2013(E) LSO @IS02013 HS under ted without license from IHS Not for Resale IS0 17715:2013(E) COPYRIGHTPROTECTEDDOCUMENT ISO2013 All rights reserved. Unless otherwise specified, 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 Case postale 56:CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail copyright@iso.org Web www.iso.org Published in Switzerland @ IS0 2013 - All rights reserved No reproductic networking permited without license from IHS Not for Resale IS0 17715:2013(E) Contents Page Foreword ..iv Introduction. ..V 1 Scope. ..1 2 Terms and definitions 3 Principle 4 Reagents. ..1 5 Equipment. ..2 6 Sampling. 2 7 Procedure .2 7.1 Reagent weighing and dissolution .2 7.2 Sample weighing .2 7.3 Test. .2 7.4 Cleaning .3 7.5 Number of determinations .3 8 Expression of results .3 9 Precision .3 9.1 Interlaboratory tests 9.2 Repeatability limits, r .3 9.3 Reproducibilitylimits,R ..4 9.4 Critical difference, dc 45 9.5 Uncertainty, u. 10 Test report ..5 Annex A (informative) Data from interlaboratory tests on wheat flour Bibliography ..13 iii ded by IHS under lic se with ISt ed without license from IHS Not for Resale