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:
2011
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
study well documented, meets generally accepted scientific principles, acceptable for assessment

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2011
Report Date:
2011

Materials and methods

Test guideline
Qualifier:
no guideline available
Principles of method if other than guideline:
Laser diffraction particle size measurement
Type of method:
Laser scattering/diffraction
Type of distribution:
volumetric distribution

Test material

Reference
Name:
Unnamed
Type:
Constituent

Results and discussion

Mass median aerodynamic diameter:
27.2 µm
Geometric standard deviation:
3.5
Particle sizeopen allclose all
Percentile:
D10
Mean:
3.2 µm
St. dev.:
0.1
Percentile:
D50
Mean:
27.2 µm
St. dev.:
3.5
Percentile:
D90
Mean:
131 µm
St. dev.:
30.1

Any other information on results incl. tables

- concentration: 0.0007%Vol

- specific surface area: 0.963 m2/g

Applicant's summary and conclusion

Conclusions:
The determined median diameter (D50) amounts to 27.2 µm.
Executive summary:

Particle Size Distribution was measured by Laser Diffraction using a Malvern Mastersizer 2000, unit: Scirocco 2000 apparatus.