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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:
November 23, 2016
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Reference:
Composition 0
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
Test material information:
Composition 1
Mass median aerodynamic diameter:
232 µm
Percentile:
D10
Mean:
31.6 µm
St. dev.:
3.7
Percentile:
D50
Mean:
232 µm
St. dev.:
6.5
Percentile:
D90
Mean:
507 µm
St. dev.:
4

From this pattern the particle size distribution of the test item was calculated by using characteristic values:

D10: 10 Vol.-% of the particles have a smaller diameter than 31.6 µm

D50: 50 Vol.-% of the particles have a smaller diameter than 232 µm

D90: 90 Vol.-% of the particles have a smaller diameter than 507 µm

Conclusions:
The median particle size D50 of the test item propyl gallate is 232 μm.
Executive summary:

The particle size distribution of the test item is:

D10: 31.6 µm

D50: 232 µm

D90: 507 µm

Description of key information

The particle size distribution of the test item is:

D10: 31.6 µm

D50: 232 µm

D90: 507 µm

Additional information