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The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Physical & Chemical properties

Particle size distribution (Granulometry)

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Administrative data

Link to relevant study record(s)

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GLP-compliant guideline study, available as unpublished report, no restrictions, fully adequate for assessment.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
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.