ISO/TS TECHNICAL SPECIFICATION 14411-1 First edition 2017-05 Preparation of particulate reference materials - Part 1: Polydisperse material based on picket fence of monodisperse spherical particles Préparation des matériaux de référence a I'état particulaire - Partie 1: Materiaux polydispersés composés d'un ensemble de particules sphériques monodispersées Reference number IS0/TS14411-1:2017(E) International Organization for Standardization @ IS0 2017 ed without license from IHS IS0/TS 14411-1:2017(E) COPYRIGHTPROTECTEDDOCUMENT IS0 2017, Published in Switzerland 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. 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 [email protected] www.iso.org Internatinair PrganizationforStandardization nsee-ZHEJIANG INSTOFSTANDARDIZAoSQa7 - All rights reserved Not for Resale, 2017/8/21 00:51:33 etworking permitted without license from IHS IS0/TS 14411-1:2017(E) Contents Page Foreword ..iv Introduction. ..V 1 Scope. ..1 2 Normative references ..1 3 Terms, definitions and symbols ..1 3.1 Terms and definitions. ..1 3.2 Symbols.... ..2 Material reguirements for preparing the individual monodisperse fractions .3 4 4.1 General description. .3 4.2 Requirements on the general properties of the material for individual pickets. 5 Characterization of the individual monodisperse fractions ..4 5.1 Particle size distribution .4 5.2 ..5 Aspectratio 5.3 Density .5 5.4 Refractive index .5 6 Preparation of picket-fence distributions .5 6.1 General .5 6.2 Preparation of individual pickets .6 6.2.1 General .6 6.2.2 Preparation of suspensions from dry powders .6 6.2.3 Determination of the particle mass fraction of suspensions. .6 6.3 Preparation of a picket fence distribution.. ..6 6.3.1 General 6.3.2 Preparation from dry powders. .. 6 6.3.3 Preparation from suspensions. .7 7 Estimation of uncertainties 7.1 General 7 7.2 Uncertainty ofa volume-based size distribution due to limited number of particles counted. .7 7.3 Uncertainty of a number-based size distribution ..8 7.4 Picket-fence distributions composed of more than two kinds of quasi- monodisperse particles. .9 7.5 Uncertainty of a count base size distribution due to various number fraction ..10 7.6 Uncertainty of a mass base size distribution due to various mass fractions ..10 7.7 Uncertainty estimation based on the data before or after the mixing process ..10 7.8 Uncertainty due to microscopic scale measurement .12 7.9 Uncertainty due to surrounding particles in microscopic measurement ..12 7.10 Other uncertainty contributions .12 7.11 Combineduncertainty 12 Annex A (informative) Picket-fence distributions composed of more than two kinds of quasi-monodisperse particles. .13 Annex B (informative) Example of reliability calculation for a mass-based cumulative size distributiontransformedfromthenumber-basedsizedistribution .16 Annex C (informative) Example of uncertainty estimation due to mixture fraction and samplesize .19 Annex D (informative) Uncertainty estimation of various cases ..21 Bibliography ..28 iii ZHEJIANG INST OF STANDARDIZATION C1 5956617 Not for Resale, 2017/8/21 00:51:33 thout license from IHS