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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:
2017
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
study well documented, meets generally accepted scientific principles, acceptable for assessment
Reference:
Composition 0
Principles of method if other than guideline:
The apparatus uses the phenomenon of scattered light from three laser beams projected through a stream of particles.  The amount and direction of light scattered by the particles is measured by an optical array and then analyzed by the apparatus software to determine the theoretical diameter of a sphere with an equivalent volume.
GLP compliance:
no
Type of method:
Laser scattering/diffraction
Type of distribution:
volumetric distribution
Test material information:
Composition 1
Remarks on result:
not measured/tested
Key result
Percentile:
D90
Mean:
351.43 µm
St. dev.:
85.14
Remarks on result:
other: no standard deviation available
Key result
Percentile:
D50
Mean:
190.75 µm
St. dev.:
11.86
Remarks on result:
other: no standard deviation available
Key result
Percentile:
D10
Mean:
74.17 µm
St. dev.:
0.7
Remarks on result:
other: no standard deviation available

The lowest test item diameter was between: 15.56 and 13.08 µm

Conclusions:
The particle size range of the test item is included between1408 µm and 13.08 µm
Executive summary:

The particle size range of the test item was determined during an experimental study performed according to the Laser scattering/diffraction method (Solvay, 2017).

This range is between 1408 µm and 13.08 µm. The test item shows the following charateristics:

d90 = 351.43 µm

d50 = 190.75 µm

d10 = 74.17 µm

Description of key information

The particle size of the test item was detemined in a key study of Klimisch validity 2 performed according to the Laser scattering/diffraction method.

Additional information

The particle size range of the test item is between 1408 µm and 18.05 µm. The test item posses the following charateristics:

d90 = 351.43 µm

d50 = 190.75 µm

d10 = 74.17 µm