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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:
August 2016
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
guideline study without detailed documentation
Qualifier:
equivalent or similar to
Guideline:
ISO 13320 (Particle size analysis - Laser diffraction methods)
Deviations:
no
GLP compliance:
yes (incl. certificate)
Type of method:
Laser scattering/diffraction
Type of distribution:
volumetric distribution
Specific details on test material used for the study:
Appearance: Coarse, white powder
Preparation: Tested as received
No.:
#1
Size:
< 75 µm
Distribution:
18.51 %
No.:
#2
Size:
< 425 µm
Distribution:
99.96 %

Results:

Concentration: 0.0140%

Span: 1.495

Uniformity: 0.442

Volume Below (75) µm: 18.51%

Volume Below (425) µm: 199.96%

Specific Surface Area: 306.5 m3/kg

D [3,2]: 52.6 µm

D [4,3]: 144 µm

Dv (10): 40.4 µm

Dv (50): 133 µm

DV (90): 249 µm

See attachments for further results.

Conclusions:
Particle size distribution showed proportion of test material having a particle size of less the 75 µm to be 18.51%

Description of key information

Particle size distribution (by laser diffraction methiod) showed proportion of test material having a particle size of less the 75 µm to be 18.51%

Additional information