ISO INTERNATIONAL STANDARD 9455-3 Secondedition 2019-09 Soft soldering fluxes - Test methods - Part 3: Determination of acid value, potentiometric and visual titration methods Flux de brasage tendre - Méthodes d'essai - Partie 3: Détermination de I'indice d'acide par des méthodes de titrage potentiométrique et visuel Reference number ISO 9455-3:2019(E) @ IS0 2019 IS0 9455-3:2019(E) COPYRIGHTPROTECTEDDOCUMENT @ IS0 2019 All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may 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 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: +41 22 749 01 11 Fax: +41 22 749 09 47 Email: [email protected] Website: www.iso.org Published in Switzerland ii @ IS0 2019 - All rights reserved