ISO INTERNATIONAL STANDARD 23265 Firstedition 2022-11 Soil quality Test for estimating organic matter decomposition in contaminated soil Qualite du sol-Essaid'estimation dela decompositiondelamatiere organiquedansunsolcontamine Reference number ISO23265:2022(E) so IS02022 IS0 23265:2022(E) COPYRIGHTPROTECTEDDOCUMENT IS02022 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, without prior written permission. Permission can be requested from either Iso at the address below orISo's memberbody in the countryoftherequester. Iso copyright office CP401:Ch.de Blandonnet8 CH-1214 Vernier, Geneva Phone:+4122 749 0111 Email:[email protected] Website:www.iso.org Published inSwitzerland ii @IS02022-All rights reserved