ISO INTERNATIONAL STANDARD 658 Third edition 2002-04-01 Oilseeds Determination of content of impurities Graines oleagineuses Détermination de la teneur en impuretes Reference number ISO 658:2002(E) So @ ISO 2002 ISO 658:2002(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may be printed or viewed but shall not file, parties accept therein the responsibility of not infringing Adobe's licensing policy. The ISO Central Secretariat accepts no liability in this area. Adobe is atrademark of Adobe Systems Incorporated. Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation parameters were optimized for printing. Every care has been taken to ensure that the file is suitable for use by IsO member bodies. In the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below. ?ISO2002 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing 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.ch Web www.iso.ch Printed in Switzerland @ISO2002-Allrights reserved ISO 658:2002(E) Contents Page Foreword. 1 Scope 2 Normativereferences 3 Terms and definitions 4 Principle 5 Apparatus 6 Sampling. 7 Preparation of test sample.. 8 Procedure 8.1 Test portion 8.2 Determination 9 Expression of results. 9.1 Method of calculation ... 10 Precision. 10.1 Interlaboratory test. 10.2 Repeatability 10.3 Reproducibility.. 11 Test report. Annex A (informative) Results of interlaboratory trial . Bibliography. n?served ili