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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:
1/09/2020
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
test procedure in accordance with generally accepted scientific standards and described in sufficient detail
Qualifier:
according to guideline
Guideline:
OECD Guideline 110 (Particle Size Distribution / Fibre Length and Diameter Distributions - Method A: Particle Size Distribution (effective hydrodynamic radius)
Deviations:
not specified
GLP compliance:
not specified
Type of method:
microscopic examination
Type of particle tested:
primary particle
Type of distribution:
other: The size distribution is expressed in Equivalent Circle in volume.
Percentile:
D10
Mean:
34.85 µm
St. dev.:
1.91
Percentile:
D50
Mean:
142.95 µm
St. dev.:
5.87
Percentile:
D90
Mean:
330.25 µm
St. dev.:
10.25

  Particle size distribution in EC volume (μm):
 Ident No.  Sample amount  SDU pressure  Objective chosen  Surface analysed  DV10  DV50  DV90  Volume Means  Span
 Assay 1  5μm3  4b  X2.5  1300 mm2  33.5  138.8  323.0  165.4  2.08
 Assay 2  5μm3  4b  X2.5  1300 mm2  36.2  147.1  337.5  168.4  2.05

The size distribution of this sample, in our experimental conditions, is characterised by an Equivalent Circle average median particle size by volume of 143μm and an Equivalent Circle average volume mean of 166.9μm.

Conclusions:
The size distribution of this sample, in our experimental conditions, is characterised by an Equivalent Circle average median particle size by volume of 143μm and an Equivalent Circle average volume mean of 166.9μm.
Executive summary:

The particle size distribution of the sample is determined by static image analysis provides by an optical microscope.

The size distribution is expressed in Equivalent Circle in volume. This kind of result can be directly compare to laser granulometry result.

The size distribution of this sample, in our experimental conditions, is characterised by an Equivalent Circle average median particle size by volume of 143μm and an Equivalent Circle average volume mean of 166.9μm.

Description of key information

The size distribution of this sample, in our experimental conditions, is characterised by an Equivalent Circle average median particle size by volume of 143μm and an Equivalent Circle average volume mean of 166.9μm.

Additional information