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Particle size distribution (Granulometry)

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Description of key information

Mass median diameter: 18.74-19.3 µm
Mass median aerodynamic diameter: 19.02 µm

Additional information

The particle size distribution of the test substance was assessed using a Laser Diffraction Particle Size Analyser.

The following results were obtained:

d10: 2.125 μm

d50: 11.346 μm

d90: 31.939 μm

Coefficient of variation for d50 is less than 3%; d10 and d90 are less than 5%. Thus repeatability of the characterisitic particles in the size distribution are within the acceptable limits as per the ISO 13320 -1 test standard.

The Mass median aerodynamic diameter is 19.02 μm.