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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:
2017-09-14
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
Qualifier:
according to
Guideline:
ISO 13320 (Particle size analysis - Laser diffraction methods)
Deviations:
no
GLP compliance:
yes (incl. certificate)
Type of method:
Laser scattering/diffraction
Type of particle tested:
primary particle
Type of distribution:
volumetric distribution
Percentile:
D10
Mean:
2 µm
St. dev.:
0
Key result
Percentile:
D50
Mean:
17.8 µm
St. dev.:
0.047
Percentile:
D90
Mean:
146.9 µm
St. dev.:
0.653

Test series 1

D10:      2.0 µm

D50:      17.8 µm         (Median diameter)

D90:      146.1 µm

 

Test series 2:

D10:      2.0 µm

D50:      17.7 µm         (Median diameter)

D90:      147.7 µm

 

Average

D10:      2.0 µm

D50:      17.8 µm         (Median diameter)

D90:      146.9 µm

Conclusions:
The test item has a median particle size D50 = 18 µm, which was determined by laser diffraction measurement.
Executive summary:

A study was performed in accordance with OECD TG 110 and ISO 13320 in order to determine the particle size distribution of the the test item. Two test series of three measurements each was performed. The test item has a median particle size D50 = 18 µm, which was determined by laser diffraction measurement

Description of key information

The test item has a median particle size D50 = 18 µm, which was determined by laser diffraction measurement.

Additional information

A study was performed in accordance with OECD TG 110 and ISO 13320 in order to determine the particle size distribution of the the test item. Two test series of three measurements each was performed. The test item has a median particle size D50 = 18 µm, which was determined by laser diffraction measurement