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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:
16 May 2018 to 22 May 2018
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
test procedure in accordance with national standard methods with acceptable restrictions
Qualifier:
according to
Guideline:
other: CIPAC method 187 (Fraunhofer diffraction method)
GLP compliance:
yes
Type of method:
Laser scattering/diffraction
Remarks:
Fraunhofer diffraction method
Type of distribution:
volumetric distribution
Key result
Percentile:
D10
Mean:
48.1 µm
St. dev.:
13.6
Percentile:
D50
Mean:
351 µm
St. dev.:
18.4
Percentile:
D90
Mean:
1 080 µm
St. dev.:
7.58

Table: Particle size distribution individual results

Determination

Dv(10) [µm]

Dv(50) [µm]

Dv(90) [µm]

1

40.9

278

986

2

50.0

374

1130

3

53.5

401

1120

Average

48.1

351

1080

Conclusions:
The average particle size distribution results, correct to three significant figures, are Dv(10) = 48.1 µm, Dv(50) = 351 µm and Dv(90) = 1080 µm.
Executive summary:

The particle size distribution of test substance was determined three times using Fraunhofer diffraction method in compliance with GLP. The average particle size distribution results, correct to three significant figures, are Dv(10) = 48.1 µm, Dv(50) = 351 µm and Dv(90) = 1080 µm.

Description of key information

Dv(10) = 48.1 µm, Dv(50) = 351 µm, Dv(90) = 1080 µm, CIPAC MT 187, Fraunhofer diffraction method, Simonin 2018

Additional information