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EC number: 609-461-8
CAS number: 376653-36-0
Particle Size Analysis using small volume (wet) module (SVM)
MMAD (Mass Median Aerodynamic Diameter)
10% of material is <
50% of material is <
90% of material is <
By volume of sample was seen to be < 10.00 μm
To characterise the particle
size distribution of the powder. The analysis is conducted initially
using a visual microscope and is then undertaken more formally using a
Laser Diffraction Particle Size Analyser. The benefit of this procedure
is that it allows the operator to obtain a better understanding of the
particle characterisation of the material.
The test is conducted to
determine the particle size distribution of BAL0001022. The sample is
initially observed to determine whether sieving of the material is
required. A method development for the particle size analysis on the
material is then undertaken to obtain the correct parameters for the
formal analysis. The method development is employed to identify the most
appropriate optical properties for the material, the correct dispersant,
dispersion pressures and sample compatibility. Once these parameters are
obtained the final sample is then analysed using the Malvern Mastersizer
3000 Laser Diffraction Analyser. It is normal practice to complete 5
runs to ensure repeatability of results. The test is conducted in
accordance with ISO 13320:2009 “Particle Size Analysis – Laser
Diffraction Methods”, 2009 and CIPAC MT 187 “Particle Size Analysis by
Laser Diffraction”, Handbook K, 2007.
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