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Diss Factsheets

Physical & Chemical properties

Particle size distribution (Granulometry)

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Reference
Endpoint:
particle size distribution (granulometry)
Type of information:
experimental study
Adequacy of study:
key study
Study period:
November 2022
Reliability:
1 (reliable without restriction)
Qualifier:
according to guideline
Guideline:
OECD Guideline 110 (Particle Size Distribution / Fibre Length and Diameter Distributions - Method A: Particle Size Distribution (effective hydrodynamic radius)
Deviations:
no
Qualifier:
according to guideline
Guideline:
other: CIPAC MT 187
Deviations:
no
GLP compliance:
no
Type of method:
Laser scattering/diffraction
Type of particle tested:
primary particle
Type of distribution:
volumetric distribution
Specific details on test material used for the study:
Batch number: 3210640070
Mass median aerodynamic diameter:
ca. 73.06 µm
Key result
Percentile:
D10
Mean:
ca. 7.785 µm
St. dev.:
0.334
Key result
Percentile:
D50
Mean:
ca. 73.06 µm
St. dev.:
7.71
Key result
Percentile:
D90
Mean:
ca. 404.8 µm
St. dev.:
43.95
Conclusions:
The test material has the following particle size distribution:
D10: 7.785 µm;
D50: 73.06 µm;
D90: 404.8 µm;
V<10 µm: 12.82 %;
V<50 µm: 42.37 %;
D[4][3]: 149.3 µm.
Executive summary:

The test material was analyzed by laser diffraction method according to OECD 110 and CIPAC MT 187 guidelines. The particle size distribution of the test material has been assessed with Malvern Lasertech apparatus; the measurements were started after reaching the following optimum conditions: dispersing energy, stabilization of the readings.

Description of key information

The substance has the following particle size distribution:
D10: 7.785 µm;
D50: 73.06 µm;
D90: 404.8 µm;
V<10 µm: 12.82 %;
V<50 µm: 42.37 %;
D[4][3]: 149.3 µm.

Additional information