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Physical & Chemical properties

Particle size distribution (Granulometry)

Administrative data

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:
other: guideline study according to GLP standard

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2010

Materials and methods

Test guideline
Qualifier:
according to
Guideline:
OECD Guideline 110 (Particle Size Distribution / Fibre Length and Diameter Distributions)
GLP compliance:
yes (incl. certificate)
Type of distribution:
volumetric distribution

Test material

Reference
Name:
Unnamed
Type:
Constituent

Results and discussion

Particle size
Percentile:
D50
Mean:
µm
Remarks on result:
other: Migrated from fields under 'Mass median diameter' as D50 percentile. No source field for Standard deviation.
Particle size distribution at different passagesopen allclose all
No.:
#1
Size:
200.61 µm
Distribution:
87.42 %
No.:
#2
Size:
91.35 µm
Distribution:
75.85 %
No.:
#3
Size:
65.9 µm
Distribution:
68.9 %
No.:
#4
Size:
52.2 µm
Distribution:
60.38 %
No.:
#5
Size:
38.2 µm
Distribution:
52.95 %
No.:
#6
Size:
22.95 µm
Distribution:
48.97 %
No.:
#7
Size:
14.23 µm
Distribution:
36.59 %
No.:
#8
Size:
10.54 µm
Distribution:
32.52 %
No.:
#9
Size:
5.39 µm
Distribution:
19.7 %
No.:
#10
Size:
2.22 µm
Distribution:
5.15 %

Any other information on results incl. tables

Approx. 13% (6% of 100%-value) of the particles are larger than 200.61 µm.

In three experimentes sedimentation took place already before the first sampling time: in the three experimentes, 8.47%, 6,25% resp. 8.12 % of the particles were not retrieved when determining the 100% value. These particles must be considered as larger than the upper Stokes diameter.

For the test item the mentioned particle size distribution was found.

Applicant's summary and conclusion

Conclusions:
The presented data are reliable and adequate.