Registration Dossier

Physical & Chemical properties

Particle size distribution (Granulometry)

Administrative data

Endpoint:
particle size distribution (granulometry)
Type of information:
experimental study
Adequacy of study:
key study
Study period:
From December 9 to December 12, 1996
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1996
Report Date:
1997

Materials and methods

Test guideline
Qualifier:
according to
Guideline:
OECD Guideline 110 (Particle Size Distribution / Fibre Length and Diameter Distributions - Method A: Particle Size Distribution (effective hydrodynamic radius)
Version / remarks:
1991
GLP compliance:
yes
Type of method:
Laser scattering/diffraction
Type of distribution:
mass based distribution

Test material

Reference
Name:
Unnamed
Type:
Constituent

Results and discussion

Particle sizeopen allclose all
Percentile:
D10
Mean:
3.5 µm
St. dev.:
0.1
Percentile:
D50
Mean:
16.3 µm
St. dev.:
0.3
Percentile:
D90
Mean:
27.1 µm
St. dev.:
1.3
Particle size distribution at different passagesopen allclose all
No.:
#1
Size:
< 2 µm
Distribution:
2.6 %
No.:
#2
Size:
>= 2 - < 5 µm
Distribution:
14.4 %
No.:
#3
Size:
>= 5 - < 10 µm
Distribution:
15 %
No.:
#4
Size:
>= 10 - < 20 µm
Distribution:
31.6 %
No.:
#5
Size:
>= 20 - < 50 µm
Distribution:
36.4 %

Applicant's summary and conclusion

Conclusions:
D50 = 16.3 µm