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Physical & Chemical properties

Particle size distribution (Granulometry)

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Endpoint:
particle size distribution (granulometry)
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
test procedure in accordance with national standard methods with acceptable restrictions
Qualifier:
no guideline followed
Principles of method if other than guideline:
The particle size/pellet size was manually measured using a digital clipper. 51 pellets of the test material were randomly selected, and diameter and height measured. The average diameter and standard deviation was (4.06 mm ± 0.29 mm).
Type of method:
other: digital clipper
Type of particle tested:
primary particle
Type of distribution:
counted distribution
Key result
Percentile:
D10
Mean:
4.8 mm
St. dev.:
0.29
Key result
Percentile:
D50
Mean:
5.1 mm
St. dev.:
0.29
Key result
Percentile:
D90
Mean:
5.4 mm
St. dev.:
0.29
Conclusions:
The particle size/pellet size was manually measured using a digital clipper. 51 pellets of the test material were randomly selected, and diameter and height measured. The average diameter and standard deviation was (4.06 mm ± 0.29 mm).
Executive summary:

The particle size/pellet size was manually measured using a digital clipper. 51 pellets of the test material were randomly selected, and diameter and height measured.  The average diameter and standard deviation was (4.06 mm ± 0.29 mm).

Endpoint:
particle size distribution (granulometry)
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
test procedure in accordance with national standard methods with acceptable restrictions
Qualifier:
no guideline followed
Principles of method if other than guideline:
Laser Scattering Particle Size Distribution.
Type of method:
Laser scattering/diffraction
Type of particle tested:
primary particle
Type of distribution:
volumetric distribution
Mass median aerodynamic diameter:
387.3 µm
Geometric standard deviation:
238.73
Key result
Percentile:
D10
Mean:
166.47 µm
St. dev.:
238.3
Key result
Percentile:
D50
Mean:
387.3 µm
St. dev.:
238.3
Key result
Percentile:
D90
Mean:
736.3 µm
St. dev.:
238.3
Conclusions:
The size distribution of the powder version of the substance was measured using laser scattering with the results: D10: 166.47µm, D50: 387.30; D90: 736.30 µm
Executive summary:

The size distribution of the powder version of the substance was measured using laser scattering with the results: D10: 166.47µm, D50: 387.30; D90: 736.30 µm

Description of key information

The size distribution of the powder version of the substance was measured using laser scattering with the results: D10: 166.47µm, D50: 387.30; D90: 736.30 µm.

The particle size/pellet size was manually measured using a digital clipper. 51 pellets of the test material were randomly selected, and diameter and height measured.  The average diameter and standard deviation was (4.06 mm ± 0.29 mm).

Additional information