ISO INTERNATIONAL 14487 STANDARD First edition 1997-06-01 Pulps - Standard water for physical testing Pates -Eau normalisée pour essais physiques ISO Reference number ISO 14487:1997(E) by IHS under Not for Resale ISO 14487:1997(E) Foreword Iso (the International Organization for Standardization) is a worldwide federation of national standards bodies (IsO member bodies). The work of preparing International Standards is normally carried out through Iso technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non- governmental, in liaison with IsO, also take part in the work. IsO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. International Standard ISO 14487 was prepared by Technical Committee ISO/TC 6, Paper, board and pulps, Subcommittee SC 5, Test methods and qualityspecificationsforpulp. @ISO1997 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from the publisher. International Organization for Standardization Case postale 56 . CH-1211 Geneve 20 . Switzerland Internet [email protected] X.400 C=ch; a=40Onet; p=iso; O=isocs; S=central Printed in Switzerland No reproduction or networking permitted without license from IHS Not for Resale ISO14487:1997(E) @ ISO Introduction The concentration of electrolytes (salts) in a pulp suspension influences the drainability properties considerably. It is therefore important that the water used for certain tests conforms to given requirements concerning its electrolyte content. NOTES 1 Even low concentrations of electrolytes greatly affect drainability properties. 2 Pulps normally contain electrolytes. This raises the salt concentration in the pulp suspension and increases drainability. ili y IHS under etworking permitted without license from IHS Not for Resale