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Physical & Chemical properties

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:
2018-05-16 to 2018-08-23
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:
EPA OPPTS 830.7520 (Particle Size, Fiber Length, and Diameter Distribution)
Version / remarks:
1996
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:
D50
Mean:
47.7 µm
St. dev.:
0.7
Percentile:
D10
Mean:
8.7 µm
St. dev.:
0.1
Percentile:
D90
Mean:
110 µm
St. dev.:
1.4

Test series 1:

D10: 8.6 µm

D50: 48.4 µm

D90: 111.3 µm

Test series 2:

D10: 8.8 µm

D50: 47.1 µm

D90: 108.6 µm

Conclusions:
The test item has a median particle size D50 = 48 µm. The D10 value was determined to be 8.7 µm and the D90 value to be 110 µm.
Executive summary:

The test item has a median particle size D50= 48 µm, which was determined by laser diffraction measurement according to ISO 13320 (2009) and OECD 110 (1981) under GLP-principles. The D10 value was determined to be 8.7 µm and the D90 value to be 110 µm.

Description of key information

The test item has a median particle size D50 = 48 µm, which was determined by laser diffraction measurement according to ISO 13320 (2009) and OECD 110 (1981) under GLP-principles. The D10 value was determined to be 8.7 µm and the D90 value to be 110 µm.

Additional information