ISO INTERNATIONAL STANDARD 4577 Second edition 2019-07 Plastics Polypropylene and propylene-copolymers - Determination of thermal oxidative stability in air Oven method Plastiques-Polypropylene et copolymeres de propylene- Détermination de la stabilité a I'oxydation a chaud dans I'air - Méthode a I'étuve Reference number IS0 4577:2019(E) @ IS0 2019 IS0 4577:2019(E) COPYRIGHTPROTECTEDDOCUMENT @ IS0 2019 All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may 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 CP 401 : Ch. de Blandonnet 8 CH-1214 Vernier, Geneva Phone: +4122 749 0111 Fax: +4122 749 09 47 Email: copyright@iso.org Website: www.iso.org Published in Switzerland ii @ IS0 2019 - All rights reserved