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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:
22 March 2017
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 particle tested:
agglomerate
Type of distribution:
volumetric distribution

Test material

Reference
Name:
Unnamed
Type:
Constituent
Test material form:
solid: particulate/powder
Remarks:
white to brownish
Details on test material:
Batch 151222

Results and discussion

Mass median aerodynamic diameter:
>= 58.99 - <= 60.828 µm
Geometric standard deviation:
>= 2.215 - <= 2.236
Particle sizeopen allclose all
Key result
Percentile:
D10
Mean:
>= 20.602 - <= 21.459 µm
St. dev.:
0.293
Key result
Percentile:
D50
Mean:
>= 58.99 - <= 60.828 µm
St. dev.:
0.613
Key result
Percentile:
D90
Mean:
>= 211.047 - <= 232.788 µm
St. dev.:
8.18

Applicant's summary and conclusion

Conclusions:
The results of the laser diffraction test conducted to determine the particle size of CH02906 are
summarised below. The analysis was conducted using the small with kerosene as the dispersant.

Volume weighted mean: 94.891 μm
Median: 59.864 μm
Mode: 53.166 μm
MMAD (mass median aerodynamic diameter): 71.587 μm
d10 - 10 % of material is <: 20.986 μm
d50 - 50 % of material is <: 59.864 μm
d90 - 90 % of material is <: 220.221 μm
volume of sample < 10.00 μm