ISO INTERNATIONAL STANDARD 6588-2 Fourth edition 2021-11 Paper, board and pulps - Determination of pH of aqueous extracts Part 2: Hot extraction Papier, carton et pates - Determination du pH des extraits aqueux - Partie2:Extractionachaud Reference number IS0 6588-2:2021(E) ISO @ISO2021 IS0 6588-2:2021(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