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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:
2018
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
test procedure in accordance with national standard methods
Qualifier:
according to
Guideline:
ISO 13320 (Particle size analysis - Laser diffraction methods)
Version / remarks:
ISO 13320:2009 “Perticle size analysis - Laser diffraction methods”
Deviations:
not specified
GLP compliance:
yes
Type of method:
Laser scattering/diffraction
Type of distribution:
volumetric distribution
Key result
Percentile:
D50
Mean:
ca. 103.6 µm
Remarks on result:
other: no data on St. dev.
Key result
Percentile:
D10
Mean:
ca. 44.13 µm
Remarks on result:
other: no data on St. dev.
Key result
Percentile:
D25
Mean:
ca. 69.7 µm
Remarks on result:
other: no data on St. dev.
Key result
Percentile:
D75
Mean:
ca. 139.4 µm
Remarks on result:
other: no data on St. dev.
Key result
Percentile:
D90
Mean:
ca. 168.52 µm
Remarks on result:
other: no data on St. dev.

Average particle size

   Symbol  Result
 Average particle size in surface area  D(3,2)  69.18 µm
 Average particle size in volume  D(4,3)  94.57 µm
Conclusions:
The particle size of test substance was determined to be D10=44.13µm, D25=69.7µm, D50=103.60µm, D75=139.40µm, D90=168.52µm.
Executive summary:

In this study, conducted to nationally recognised standards (ISO 13320 : 2009) with GLP certificaiton, the mean particle size of the test material (EC 254-935-6) was determined to be 103.60 µm (D50).

Description of key information

Study carried out according to national testing standards and with GLP compliance.

Additional information

MMD= 103.60µm. The measurement was carried out by laser diffraction according to ISO 13320 : 2009.