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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:
2020-10-01
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
OECD Guideline 110 (Particle Size Distribution / Fibre Length and Diameter Distributions - Method A: Particle Size Distribution (effective hydrodynamic radius)
Version / remarks:
1981
Deviations:
no
Qualifier:
according to guideline
Guideline:
ISO 13320 (Particle size analysis - Laser diffraction methods)
Version / remarks:
2009
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Type of method:
Laser scattering/diffraction
Type of distribution:
volumetric distribution
Percentile:
D10
Mean:
10.7 µm
St. dev.:
0.26
Key result
Percentile:
D50
Mean:
138.3 µm
St. dev.:
1.58
Percentile:
D90
Mean:
323.4 µm
St. dev.:
5.97

Test series 1


D10:         10.4 µm                                                            Standard deviation: 0.93 µm


D50:         139.8 µm           (Median diameter)                      Standard deviation: 3.11 µm


D90:         329.4 µm                                                           Standard deviation: 4.96 µm


 


Test series 2


D10:         11.0 µm                                                            Standard deviation: 0.17 µm


D50:         136.7 µm           (Median diameter)                      Standard deviation: 1.66 µm


D90:         317.4 µm                                                           Standard deviation: 1.92 µm


 


Average


D10:         10.7 µm                                                            Standard deviation: 0.26 µm


D50:         138.3 µm           (Median diameter)                      Standard deviation: 1.58 µm


D90:         323.4 µm                                                           Standard deviation: 5.97 µm

Conclusions:
The D10, D50 and D90 percentile were determined as D10 = 10.4 µm, D50 = 139.8 µm and D90 = 329.4 µm, respectively.
Executive summary:

A study was conducted according to OECD Test Guideline 110 and ISO 13320 (2009). The D10, D50 and D90 percentile were determined by laser diffraction as D10 = 10.4 µm, D50 = 139.8 µm and D90 = 329.4 µm, respectively.

Description of key information

The D10, D50 and D90 percentile were determined as D10 = 10.4 µm, D50 = 139.8 µm and D90 = 329.4 µm, respectively (reference 4.5-1).

Additional information

A study was conducted according to OECD Test Guideline 110 and ISO 13320 (2009). The D10, D50 and D90 percentile were determined by laser diffraction as D10 = 10.4 µm, D50 = 139.8 µm and D90 = 329.4 µm, respectively.