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:
2016
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
test procedure in accordance with national standard methods

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2016
Report Date:
2016

Materials and methods

Test guideline
Qualifier:
according to
Guideline:
ISO 13320 (Particle size analysis - Laser diffraction methods)
GLP compliance:
no
Type of method:
Laser scattering/diffraction
Type of distribution:
volumetric distribution

Test material

Reference
Name:
Unnamed
Type:
Constituent
Test material form:
solid: particulate/powder

Results and discussion

Mass median aerodynamic diameter:
17.7 µm
Geometric standard deviation:
2.3
Particle sizeopen allclose all
Percentile:
D10
Mean:
2.6 µm
St. dev.:
0.1
Percentile:
D50
Mean:
17.7 µm
St. dev.:
2.3
Percentile:
D90
Mean:
120 µm
St. dev.:
30

Applicant's summary and conclusion

Conclusions:
The mass median diameter of the volumetric particle size distribution is 17.7 µm
Executive summary:

The volumetric particle size distribution of the substance was determined according ISO 13320 -1 using a Mastersizer 2000 apparatus with the vibration unit Scirocco 2000. The mass median diameter was found to be 17.7 µm.