ISO DIS 14411-2
Preparation of particulate reference materials - Part 2: Polydisperse spherical particles
|Publication Date:||7 January 2019|
|ICS Code (Particle size analysis. Sieving):||19.120|
This international standard describes the specifications for spherical polydisperse particulate reference materials with acceptable uncertainty in particle size distribution and describes protocols for their characterisation. These reference materials will be fit for the purpose for their intended use. One potential use of these reference materials is the reliability test of the laser-diffraction and other related methods.
This international standard expresses polydispersity and the related uncertainties in size. Users should take notice that small variations in size may imply large variations in cumulative distribution.
This document describes the necessary requirements of particulate reference materials, which should be used to the reliability test of various types of particle size measurement apparatus. The requirements described in ISO 17034 should be applied for processing, homogeneity and stability assessment as well as for the preparation of certificates, which are not addressed in this international standard.