ISO INTERNATIONAL STANDARD 4629-1 First edition 2016-06-01 Binders for paints and varnishes Determination of hydroxyl value - Part 1: Titrimetric method without using a catalyst Liants pour peintures et vernis - Détermination de I'indice d'hydroxyle Partie 1: Méthode titrimétrique sans catalyseur Reference number IS0 4629-1:2016(E) ISO International Organization for Standardization @ IS0 2016 ZHEJIANG INSTOF STANDARDIZATION C15956617 ted without license from IHS IS0 4629-1:2016(E) COPYRIGHT PROTECTED DOCUMENT IS0 2016, Published in Switzerland All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form 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 Ch. de Blandonnet 8 . CP 401 CH-1214 Vernier, Geneva, Switzerland Tel. +41 22 749 01 11 Fax +41 22 749 09 47 copyright@iso.org www.iso.org Internatinir DrganizationforStandardization Licensee-ZHEJIANG INST.OF STANDARDIZoISQ6-All rights reserved Not for Resale, 2016/8/17 07:00:37 No reproduction or networking permited without license from IHS IS0 4629-1:2016(E) Contents Page Foreword ..iv 1 Scope .1 2 Normative references 3 Terms and definitions 4 Principle 5 Reagents. 6 Apparatus. ..3 7 Sampling. 8 Procedure ..3 8.1 Number of determinations. ..3 8.2 Test portion ..3 8.3 Determination .4 8.4 Blanktest ..5 8.5 Determination of acid value. ..5 9 Expression of results .5 10 Precision .5 11 Test report .6 Bibliography 7 Inteainal oganzation @st(Sr201/6 - All rights reserved ii See=ZHEJIANG INST OF STANDARDIZATION C1 5956617 vided by IHS under I se with ISt ed without license from IHS Not for Resale, 2016/8/17 07:00:37