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:
16 September 2010 - 17 September 2010
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: This study has been performed according to OECD, ISO and CIPAC guidelines and according to GLP principles.

Data source

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

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to
Guideline:
OECD Guideline 110 (Particle Size Distribution / Fibre Length and Diameter Distributions)
Deviations:
no
Qualifier:
according to
Guideline:
other: ISO 13320:2009
Deviations:
no
Qualifier:
according to
Guideline:
other: CIPAC MT 187
Deviations:
no
GLP compliance:
yes (incl. certificate)
Type of distribution:
other: laser diffraction particle size analysis

Test material

Reference
Name:
Unnamed
Type:
Constituent
Details on test material:
Description: Yellow to orange powder (determined at NOTOX)
Batch: 00082

Results and discussion

Particle sizeopen allclose all
Percentile:
D50
Mean:
8.438 µm
Remarks on result:
other: Migrated from fields under 'Mass median diameter' as D50 percentile. No source field for Standard deviation.
Percentile:
D10
Mean:
< 1.495 µm
St. dev.:
0.01
Percentile:
D50
Mean:
< 7.106 µm
St. dev.:
0.04
Percentile:
D90
Mean:
< 41.177 µm
St. dev.:
1.04

Any other information on results incl. tables

60.50 % by volume of sample was seen to be < 10.00 µm

Applicant's summary and conclusion

Conclusions:
Using the laser diffraction test (‘wet’, small volume dispersion system), the Mass Median Aerodynamic Diameter (MMAD) of the test substance was determined to be 8.438 µm. Furthermore it was determined that 60.50 % by volume of sample was < 10.00 μm.