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Particle size distribution (Granulometry)

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Description of key information

Particle Size Distribution:

% test material             particle size (microns)

        3.51                            <=  2.00

      21.40                            <= 10.1

      99.51                            <= 203.3

Mass Median Diameter: Calculated mass median aerodynamic diameter: 40 microns  

Calculated percentage <10 microns aerodynamic diameter: 9.5%

Additional information

Although the calculated proportion of particles with an aerodynamic diameter less than 10 µm is less than 10% it is considered that, given the assumptions made in the calculation and the possible bimodal nature of their size distribution, (there appears to be a sub-population of very small particles), we advise that there is some potential for inhalation of this material.

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