ISO INTERNATIONAL STANDARD 5148 First edition 2022-06 Plastics -Determination of specific aerobic biodegradation rate of solid plasticmaterialsanddisappearance time (DT50) under mesophilic laboratory test conditions Plastiques-Determinationdutauxdebiodegradationaerobie specifiquedes matieres plastiques solides et du temps dedisparition (DT50)dansdesconditionsd'essaidelaboratoiremesophile Referencenumber IS05148:2022(E) ISO2022 IS05148:2022(E) COPYRIGHTPROTECTEDDOCUMENT IS02022 All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may bereproduced orutilized otherwise in anyformorbyanymeans,electronic ormechanical, including photocopying,orposting on orIso'smemberbody inthecountryoftherequester. ISO copyright office CP40i.Ch.deBlandonnet8 CH-1214Vernier,Geneva Phone: +41 22 749 01 11 Email:[email protected] Website:www.iso.org Publishedin Switzerland ii IS02022-Allrightsreserved