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Physical & Chemical properties

Particle size distribution (Granulometry)

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Reference
Endpoint:
particle size distribution (granulometry)
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2011
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
test procedure in accordance with national standard methods with acceptable restrictions
Remarks:
without detailed documentation
Principles of method if other than guideline:
Measurement by laser diffraction in dry conditions
GLP compliance:
no
Type of method:
Laser scattering/diffraction
Type of distribution:
volumetric distribution
Key result
Percentile:
D10
Mean:
1.47 µm
Remarks on result:
other: no data on St. dev.
Key result
Percentile:
D50
Mean:
10.37 µm
Remarks on result:
other: no data on St. dev.
Key result
Percentile:
D90
Mean:
28 µm
Remarks on result:
other: no data on St. dev.
No.:
#1
Size:
< 100 µm
Distribution:
100 %
No.:
#2
Size:
< 10 µm
Distribution:
ca. 50 %
No.:
#3
Size:
< 4 µm
Distribution:
ca. 24 %
Conclusions:
The particle size distribution of test substance was determined to be MMD= 10.3 µm

Description of key information

MMD= 10.3 µm

D10= 1.4 µm

D90= 28 µm

Additional information

The determination was carried out by laser diffraction in dry conditions.

In addition, the values [vol%] for the particle size fractions are as follows:

<4 µm= 24%

<10 µm= 50%

<100 µm= 100%