ISO INTERNATIONAL STANDARD 23637 First edition 2021-12 Cereals Determination of cadmium content by graphite furnace atomic absorption spectrometry with diluted nitric acid extraction Céréales-Détermination delateneur en cadmiumpar spectrometrie d'absorption atomique en four graphite et extraction a I'aide d'acide nitrique dilué Reference number IS0 23637:2021(E) ISO @ IS0 2021 IS0 23637:2021(E) COPYRIGHT PROTECTED DOCUMENT @ IS02021 All rights reserved. Unless otherwise specified, or required in the context of its implementation, 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, withoutpriorwrittenpermission.Permission can berequestedfrom eitherIso at theaddress below orIso'smemberbodyinthecountryoftherequester. ISO copyright office CP 401 · Ch. de Blandonnet 8 CH-1214 Vernier, Geneva Phone: +4122 749 0111 Email: [email protected] Website: www.iso.org Published in Switzerland ii @ IS0 2021 - All rights reserved