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Particle size distribution (Granulometry)

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Description of key information

MMD = 81.6 µm

Additional information

The particle size distribution of the test item is summarized as follows:

D10 = 11.6 µm,

D50 = 81.6 µm,

D90 = 275.8 µm,

as determined by laser diffraction measurement, according to OECD TG 110, ISO 13320 and EPA OCSPP TG 830.7520.

< 1% in volume of the test item has a particle size <= 4 µm (respirable fraction (the mass fraction of particles that reaches the alveoli).

The CEN document, EN 481 ‘Workplace Atmospheres – size fraction definitions for measurement of airborne particles’