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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:
22-Sep-2014
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)
Qualifier:
according to
Guideline:
EPA OPPTS 830.7520 (Particle Size, Fiber Length, and Diameter Distribution)
Qualifier:
according to
Guideline:
other: ISO 13320 (2009): Particle size analysis - Laser diffraction methods
GLP compliance:
no
Type of method:
Laser scattering/diffraction
Test material information:
Composition 1
Percentile:
D10
Mean:
26.7 µm
Remarks on result:
other: average of two values
Key result
Percentile:
D50
Mean:
161.4 µm
Remarks on result:
other: average of two values
Percentile:
D90
Mean:
372.3 µm
Remarks on result:
other: average of two values

Results

Three measurements of the test item were made in each of two test series

 

Test series 1

D10: 24.7 µm

D50: 160.0 µm (Median diameter)

D90: 371.6 µm

 

Test series 2

D10: 28.8 µm

D50: 162.7 µm (Median diameter)

D90: 373.1 µm

 

Average

D10: 26.7 µm

D50: 161.4 µm (Median diameter)

D90: 372.3 µm

 

Final results

The test item has a median particle size D50 = 161 µm, which was determined by laser diffraction measurement.

Conclusions:
Particle size distribution values of 26.7 µm (D10), 161.4 µm (D50) and 372.3 µm (D90) were determined for the test substance according to OECD 110.

Description of key information

Particle size distribution: 26.7 µm (D10), 161.4 µm (D50) and 372.3 µm (D90), (OECD 110, laser diffraction).

Additional information