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Particle size distribution (Granulometry)

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Reference
Endpoint:
particle size distribution (granulometry)
Type of information:
other: company data
Adequacy of study:
key study
Study period:
2018-01-17
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
study well documented, meets generally accepted scientific principles, acceptable for assessment
Qualifier:
no guideline followed
Principles of method if other than guideline:
The particle size distribution was determined by laser diffraction measurement (Beckman coulter (LS13 320: Universal liquid module)).
GLP compliance:
no
Type of method:
Laser scattering/diffraction
Type of distribution:
volumetric distribution
Remarks on result:
not measured/tested
Percentile:
D10
Mean:
0.478 µm
Remarks on result:
other: no data for St. dev.
Percentile:
D50
Mean:
2.296 µm
Remarks on result:
other: no data for St. dev.
Percentile:
D90
Mean:
12.6 µm
Remarks on result:
other: no data for St. dev.

Calculation from 0.04 µm up to 2000 µm

volume: 100 %

mean: 4.175 µm, S.D.: 4.570 µm

median: 2.296 µm

mean /median value: 1.818

maximum: 13.61 µm

< 5 % : 0.353 µm

< 10 % : 0.478 µm

< 25 % : 0.882 µm

< 50 % : 2.296 µm

< 75 % : 5.458 µm

< 90 % : 12.60 µm

< 95 % : 14.74 µm

< 99 % : 17.60 µm

Conclusions:
The particle size distribution of the test item is as follows: D10: 0.478 µm, D50: 2.296 µm (median), D90: 12.60 µm

Description of key information

The particle size distribution of the test item is as follows: D10: 0.478 µm, D50: 2.296 µm (median), D90: 12.60 µm

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