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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:
from 2016-03-09 to 2017-06-15
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to
Guideline:
OECD Guideline 110 (Particle Size Distribution / Fibre Length and Diameter Distributions - Method A: Particle Size Distribution (effective hydrodynamic radius)
Deviations:
no
GLP compliance:
yes (incl. certificate)
Type of method:
Laser scattering/diffraction
Type of distribution:
volumetric distribution
Percentile:
D10
Mean:
8.59 µm
St. dev.:
0.13
Key result
Percentile:
D50
Mean:
42.54 µm
St. dev.:
0.65
Percentile:
D90
Mean:
146.79 µm
St. dev.:
6.44

Two test series of 3 measurements each were performed with the test item.

Test series 1:

D10:      8.502 µm

D50:      42.084 µm       (Median diameter)

D90:      142.234 µm

Test series 2:

D10:      8.679 µm

D50:      43.000 µm       (Median diameter)

D90:      151.336 µm

Average

D10:      8.59 µm

D50:      42.54 µm       (Median diameter)

D90:      146.79 µm

Executive summary:

A study was conducted according to OECD Test Guideline 110 to determine the particle size distribution of the test item. The particle size distribution was determined using the laser diffraction method.

The median mass diameter was determined as 42.54 µm, while the 10% quantile was 8.59 µm and the 90%-quantile was 146.79 µm

Description of key information

The test item has a median particle size D50 = 42.54 µm, which was determined by laser diffraction measurement.

Additional information

A study was conducted according to OECD Test Guideline 110 to determine the particle size distribution of the test item. The particle size distribution was determined using the laser diffraction method.

The median mass diameter was determined as 42.54 µm, while the 10% quantile was 8.59 µm and the 90%-quantile was 146.79 µm