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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
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Remarks:
GLP-compliant guideline study, available as unpublished report, no restrictions, fully adequate for assessment.
Qualifier:
according to
Guideline:
OECD Guideline 110 (Particle Size Distribution / Fibre Length and Diameter Distributions)
Deviations:
no
GLP compliance:
no
Type of method:
other: Not reported
Type of distribution:
counted distribution
Percentile:
D50
Mean:
4.32 µm
Remarks on result:
other: 'Mass median diameter' as D50 percentile. No source field for Standard deviation.
Mean:
8.48 µm
St. dev.:
11.72
Remarks on result:
other: no other info
No.:
#1
Size:
< 4 µm
Distribution:
0.07 %
Remarks on result:
other: spherical volume
No.:
#2
Size:
>= 4 - < 10 µm
Distribution:
0.98 %
Remarks on result:
other: spherical volume
No.:
#3
Size:
>= 10 - < 100 µm
Distribution:
98.94 %
Remarks on result:
other: spherical volume
No.:
#4
Size:
>= 100 µm
Distribution:
0.01 %
Remarks on result:
other: spherical volume
No.:
#1
Size:
< 4 µm
Distribution:
0.08 %
Remarks on result:
other: cubical volume
No.:
#2
Size:
>= 4 - < 10 µm
Distribution:
1.12 %
Remarks on result:
other: cubical volume
No.:
#3
Size:
>= 10 - < 100 µm
Distribution:
98.8 %
Remarks on result:
other: cubical volume

Description of key information

The following particle size distribution was determined: 
0.07% < 4 μm; 0.98% in the range of 4-10 μm; 98.94% in the range 10-100 μm; 0.01% > 100 μm(spherical volume).
0.08% < 4 μm; 1.12% in the range 4-10 μm; 98.80% in the range 10-100 μm (cubical volume).
The median diameter was 4.32 μm.

Additional information

Data from a non-GLP guideline study, fully adequate for assessment.