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
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2017
Report Date:
2017

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to
Guideline:
ISO 13320 (Particle size analysis - Laser diffraction methods)
Version / remarks:
2009
Deviations:
no
Qualifier:
according to
Guideline:
other: CIPAC MT 187
Deviations:
no
GLP compliance:
yes (incl. certificate)
Type of method:
Laser scattering/diffraction
Type of distribution:
volumetric distribution

Test material

Reference
Name:
Unnamed
Type:
Constituent
Test material form:
solid: particulate/powder
Details on test material:
white crystalline powder

Results and discussion

Mass median aerodynamic diameter:
254.594 µm
Geometric standard deviation:
>= 1.93 - <= 1.967
Particle sizeopen allclose all
Percentile:
D10
Mean:
81.659 µm
St. dev.:
1.32
Percentile:
D50
Mean:
201.275 µm
St. dev.:
3.22
Percentile:
D90
Mean:
385.578 µm
St. dev.:
2.632

Applicant's summary and conclusion

Conclusions:
The results of the laser diffraction test conducted to determine the particle size of CH02241 are summarised in the table below (in μm). The analysis was conducted using the small using silicone oil as the dispersant.

Volume weighted mean 219.160
Median 201.275
Mode 225.117
MMAD 254.594
d10 - 10 % of material is < 81.659
d50 - 50 % of material is < 201.275
d90 - 90 % of material is < 385.578