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Diss Factsheets

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:
insufficient details
Principles of method if other than guideline:
Measurment by laser diffraction method in dry conditions
GLP compliance:
no
Type of method:
Laser scattering/diffraction
Type of distribution:
volumetric distribution
Key result
Percentile:
D10
Mean:
2 µm
Remarks on result:
other: no data on St. dev.
Key result
Percentile:
D50
Mean:
13.2 µm
Remarks on result:
other: no data on St. dev.
Key result
Percentile:
D90
Mean:
31.7 µm
Remarks on result:
other: no data on St. dev.
No.:
#1
Size:
< 4 µm
Distribution:
ca. 17 %
No.:
#2
Size:
< 10 µm
Distribution:
ca. 39 %
No.:
#3
Size:
< 100 µm
Distribution:
ca. 96 %
Conclusions:
The particle size distribution of test substance was determined to be MMD= 13.2 µm

Description of key information

Volumetric distribution:


MMD= 13 µm


D10= 2 µm


D90= 31 µm

Additional information

Bulk form:


The determination was conducted by laser diffraction method in dry conditions.


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


<4 µm = 17%


<10 µm= 39%


<100 µm= 96%