ISO INTERNATIONAL STANDARD 17184 Firstedition 2014-05-15 Soil quality Determination of carbon and nitrogen by near-infrared spectrometry (NIRS) Qualite du sol - Dosage du carbone et de I'azote par spectrométrie proche infrarouge (SPIR) Reference number IS0 17184:2014(E) ISO Copyright intemational Organizatin for Standardizatin @IS02014 mitted without license from IHS Not for Resale IS0 17184:2014(E) COPYRIGHTPROTECTEDDOCUMENT @ISO2014 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 2014 - All rights reserved or networking permited without license from IHS Not for Resale IS0 17184:2014(E) Contents Page Foreword ..iv 1 Scope ..1 2 Normative references 3 Principle. .... 4 Apparatus 5 Procedure. 5.1 Preparation of samples .2 5.2 Instrument calibration 5.3 Sample measurement. ..4 6 Test report .5 Annex A (informative) Precision data .6 Bibliography ii ded by IHS under lic se with ISt ted without licensefrom IHS Not for Resale