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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:
05 Oct 2017
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
ISO 13320 (Particle size analysis - Laser diffraction methods)
Version / remarks:
2009
GLP compliance:
yes
Type of method:
Laser scattering/diffraction
Type of particle tested:
primary particle
Type of distribution:
volumetric distribution
Key result
Percentile:
D50
Mean:
551 µm
St. dev.:
23.4
Remarks on result:
other: %RSD reported

The test results are shown as follows.

Number of repetition

Median size [x50 (μm)]

Measured value

Average

Relative standard deviation (%)

1

462

551

23.4

2

699

3

492

The results relative to x25 (μm) and x75 (μm) are also reported for the three repetitions, no average and no standard deviation were however calculated.

Repetition

1

2

3

x25 (μm)

304

539

327

x75 (μm)

661

876

688

x50 = D50

x25 = D25

x75 = D75

Description of key information

Median size (x50) = 551 µm (ISO 13320, Laser diffraction methods)

Relative standard deviation (based on three repetitions): 23.4%

Additional information