Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols
5 Principle
6 General operation
6.1 Response
6.2 Size limits
6.3 Effect of coincident particle passage
6.4 Dead time
7 Repeatability of counts
8 Operational procedures
8.1 Instrument location
8.2 Linearity of the aperture/amplifier system
8.3 Linearity of the counting system
8.4 Choice of electrolyte solution
8.5 Preparation of electrolyte solution
8.6 Recommended sampling, sample splitting, sample
preparation and dispersion
8.7 Choice of aperture(s) and analysis volume(s)
8.8 Clearing an aperture blockage
8.9 Stability of dispersion
8.10 Calibration
9 Analysis
10 Calculation of results
11 Instrument qualification
11.1 General
11.2 Report
Annex A (informative) Calibration for the measurement of
porous and conductive particles
Annex B (informative) Technique using two (or more) apertures
Annex C (informative) Chi-squared test of the correctness of
instrument operation or sample preparation
Annex D (informative) Table of materials and electrolyte
solutions
Annex E (informative) Mass integration method
Annex F (informative) Calibration and control of frequently
used apertures
Bibliography