ISO INTERNATIONAL STANDARD 18473-1 First edition 2015-08-15 Functional pigments and extenders for special applications - Part 1: Nanoscale calcium carbonate for sealant application Pigments et matieres de charges fonctionnels pour applications spéciales - Partie 1: Carbonate de calcium nanometrique pour les enduits Reference number IS0 18473-1:2015(E) SO International Organization for Standardization @ IS0 2015 IS0 18473-1:2015(E) COPYRIGHTPROTECTEDDOCUMENT IS02015,PublishedinSwitzerland All rights reserved. Unless otherwise specified, 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. ISOcopyrightoffice Ch. de Blandonnet 8 . CP 401 CH-1214 Vernier, Geneva, Switzerland Tel.+41 22 749 01 11 Fax +41 22 749 09 47 [email protected] www.iso.org Intenationaibr PrganizationforStandardization Not for Resale, 2015/11/11 08:33:19 etworking permitted without license from IHS IS0 18473-1:2015(E) Contents Page Foreword ..iv Introduction. ... 1 Scope.. 2 Normative references 3 Terms and definitions 4 Requirements and test methods ..2 5 Sampling. ..3 6 Determination of whiteness ..3 6.1 Apparatus. .3 6.2 Procedure. .3 6.2.1 Sample preparation .3 6.2.2 Calibration of the apparatus 6.2.3 Determination. ..4 6.2.4 Calculation of whiteness ..4 7 Marking and label. 8 Test report ..4 Bibliography .5 iii see=Zhejiang Institute of Standardization 5956617 vided by IHS under ed without license from IHS