ISO INTERNATIONAL STANDARD 18642 First edition 2016-07-15 Fertilizer and soil conditioners Fertilizer grade urea General requirements Matieres fertilisantes-EngraisaI'urée-Exigences generales Reference number ISO 18642:2016(E) ISO @ ISO 2016 IS0 18642:2016(E) COPYRIGHTPROTECTEDDOCUMENT IS0 2016, Published in Switzerland 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 +41 22 749 09 47 [email protected] www.iso.org i @ IS0 2016 - All rights reserved IS0 18642:2016(E) Contents Page Foreword ..iv Introduction. .. 1 Scope. ..1 2 Normative references 3 Terms and definitions 4 Requirement 5 Testing methods ..2 ..3 6 Sampling and preparation oftest sample 7 Marking and labelling. ..3 8 Package, transport, and storage .4 Bibliography .5 @ IS0 2016 - All rights reserved ili