Registration Dossier

Physical & Chemical properties

Particle size distribution (Granulometry)

Currently viewing:

Administrative data

Link to relevant study record(s)

Reference
Endpoint:
particle size distribution (granulometry)
Type of information:
experimental study
Adequacy of study:
key study
Study period:
09.11.16-29.11.16
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to
Guideline:
ISO 13320 (Particle size analysis - Laser diffraction methods)
Version / remarks:
2009
GLP compliance:
yes (incl. certificate)
Type of method:
Laser scattering/diffraction
Type of particle tested:
primary particle
Type of distribution:
volumetric distribution
Mass median aerodynamic diameter:
ca. 156 µm
Percentile:
D10
Mean:
30.1 µm
St. dev.:
1.7
Key result
Percentile:
D50
Mean:
156.5 µm
St. dev.:
3.3
Percentile:
D90
Mean:
396.4 µm
St. dev.:
2.9
Conclusions:
The test item 2,2'-Azobis(2,4-dimethylvaleronitrile) has a median particle size D50 = 157 µm, which was determined by laser diffraction measurement.

Description of key information

The MMAD of the test substance is measured by laser diffraction showing a result of 157 µm.

Additional information