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Particle size distribution (Granulometry)

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Description of key information

The MMAD (Mass Median Aerodynamic Diameter < 100µm) has a value of 74.8 µm as spherical particles.

Additional information

According to OECD guideline 110 the particle size distribution was determined by scanning electron microscopy method for the sieved fraction (< 100 µm, 79.33 % of total sample) and presented on the basis of calculated mass fractions. The median diameter was 74.8µm with the main fraction of 69.45 % spherical volume distributing in the range of 10 -100 µm and hence the tested particles with sieved size smaller than 100 µm are mainly dominated by inhalable fraction as defined in EU 481.