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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:
April 27, 2015
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
test procedure in accordance with national standard methods
Principles of method if other than guideline:
Laser light scattering. The test was performed according to the SOP - STR 071 (Hydro 2000S) protocol.
The particle size distribution was analyzed using the Mastersizer 2000 tool, which uses the technique of laser diffraction to measure the size of particles. It measures the intensity of light scattered as a laser beam passes through a dispersed particulate sample. This data is then analyzed to calculate the size of the particles that created the scattering pattern.
GLP compliance:
no
Type of method:
Laser scattering/diffraction
Type of distribution:
volumetric distribution
Percentile:
D10
Mean:
ca. 17.161 µm
Remarks on result:
other: After 2 minutes of ultrasonic treatment
Percentile:
D50
Mean:
ca. 55.745 µm
Remarks on result:
other: After 2 minutes of ultrasonic treatment
Percentile:
D90
Mean:
ca. 169.393 µm
Remarks on result:
other: After 2 minutes of ultrasonic treatment
Conclusions:
D10 = 17.161 µm
D50 = 55.745 µm
D90 = 169.393 µm
Executive summary:

Method

The particle size distribution was analyzed using the Mastersizer 2000 tool, which uses the technique of laser diffraction to measure the size of particles. It does this by measuring the intensity of light scattered as a laser beam passes through a dispersed particulate sample. This data is then analyzed to calculate the size of the particles that created the scattering pattern.

Results

Analysis carried out after 2 minutes of ultrasonic treatment:

D10 = 17.161 µm

D50 = 55.745 µm

D90 = 169.393 µm

Description of key information

MMD = 55.745 µm 

Additional information

Laser light scattering method.