ISO INTERNATIONAL STANDARD 8254-3 Second edition 2016-04-01 Paper and board Measurement of specular gloss Part 3: 2o° gloss with a converging beam, TAPPI method Papier et carton - Mesurage du brillant speéculaire - Partie 3: Brillant a 20° avec un faisceau convergent, méthode TAPPI Reference number IS0 8254-3:2016(E) ISO International Organization for Standardization @ IS0 2016 ZHEJIANG INSTOFSTANDARDIZATION C15956617 ted without license from IHS IS0 8254-3:2016(E) COPYRIGHTPROTECTEDDOCUMENT ISO 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 copyrightoffice 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 Internatinair PrganizationforStandardization ensee-ZHEJIANG INSTOFSTANDARDIZAoISQ6- All rights reserved etworking permitted without license from IHS IS0 8254-3:2016(E) Contents Page Foreword ..iv Introduction. .. 1 Scope. ..1 2 Normative references ..1 3 Terms and definitions 4 Principle ..2 5 Apparatus .2 5.1 Gloss meter .2 5.2 Gloss standards ..2 6 Sampling .4 7 Preparation of test pieces 8 Calibration of the instrument ..4 9 Procedure. ..4 10 Calculation and expression of results ..5 11 Test report ..5 Annex A (normative) Specification of the optical system of the gloss meter .6 Annex B (informative) Precision. .9 Bibliography ..10 iii =ZHEJIANG INSTOF STANDARDIZATION C15956617 vided by IHS underI vithoutlicense from IHS