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:
26 May 2003 to 19 September 2003
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Acceptable study report which meets basic scientific principles

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2003

Materials and methods

Principles of method if other than guideline:
Laser diffraction after dispersing in air, no additional pre-treatment
GLP compliance:
not specified
Type of distribution:
volumetric distribution

Test material

Reference
Name:
Unnamed
Type:
Constituent

Results and discussion

Particle sizeopen allclose all
Percentile:
D50
Mean:
3.8 µm
Remarks on result:
other: Migrated from fields under 'Mass median diameter' as D50 percentile. No source field for Standard deviation.
Percentile:
D50
Mean:
3.8 µm
St. dev.:
0.49

Any other information on results incl. tables

Standard deviation calculated from experience with pigments: 0.13 x D50 (minimum value: 0.1)

Applicant's summary and conclusion

Conclusions:
The mass median diameter of the test item is 3.8 µm.
Executive summary:
The mass median diameter using laser diffraction (volumetric distribution) was determined to be 3.8 µm.