ISO INTERNATIONAL STANDARD 10519 Third edition 2015-09-15 Rapeseed Determination of chlorophyll content Spectrometric method Graines de colza - Détermination de la teneur en chlorophylle - Méthode spectrométrique Reference number ISO 10519:2015(E) SO International Organization for Standardization @ IS0 2015 Institute of Sta dardization5956617 vided by IHS under I itted without license from IHS IS0 10519:2015(E) COPYRIGHTPROTECTEDDOCUMENT IS02015,PublishedinSwitzerland 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 Ch. de Blandonnet 8 . CP 401 CH-1214 Vernier, Geneva, Switzerland Tel.+41 22 749 01 11 Fax+412274909 47 [email protected] www.iso.org Intenationai br PrganizationforStandardization Not for Resale, 2015/11/11 08:23:07 etworking permitted without license from IHS IS0 10519:2015(E) Contents Page Foreword ..iv 1 Scope 2 Normative references 3 Terms and definitions 4 Principle 5 Reagent. 5.1 Extraction solvent. ..1 6 Apparatus. ..1 7 Sampling. ..2 8 Preparation of test sample ..2 9 Procedure 9.1 Test portions. 3 9.2 Extraction. ..3 9.3 Determination ..3 10 Expression of results ..3 11 Precision ..4 11.1 Repeatability ...4 11.2 Reproducibility .4 12 Test report ..4 Annex A (informative) Results of interlaboratory test ..5 Bibliography .6 iii Notfor Resale,2015/11/1108:23:07 see=Zhejiang Institute of Standardization 5956617 vided by IHS under I ed without license from IHS