ISO INTERNATIONAL STANDARD 10304-4 Secondedition 2022-03 Water quality - Determination of dissolved anions by liquid chromatography of ions Part 4: Determination of chlorate, chloride and chlorite in water with low contamination Qualité de I'eau - Dosage des anions dissous par chromatographie des ions en phase liquide- Partie 4: Dosage des ions chlorate, chlorure et chlorite dans des eaux faiblementcontaminees Referencenumber IS010304-4:2022(E) ISO IS02022 IS0 10304-4:2022(E) COPYRIGHTPROTECTEDDOCUMENT ISO2022 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 anyform or by anymeans, electronic or mechanical, including photocopying, orposting on theinternetoran intranet,withoutpriorwrittenpermission.Permissioncanberequestedfrom eitherIsoattheaddressbelow or ISO's member body in the country of the requester. ISO copyright office CP401 : Ch.de Blandonnet 8 CH-1214 Vernier,Geneva Phone: +4122 749 0111 Email: copyright@iso.org Website:www.iso.org Published in Switzerland ii @IS0 2022-All rights reserved