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Physical & Chemical properties

Particle size distribution (Granulometry)

Administrative data

Endpoint:
particle size distribution (granulometry)
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2017
Report Date:
2017

Materials and methods

Test guideline
Qualifier:
according to
Guideline:
ISO 13320 (Particle size analysis - Laser diffraction methods)
GLP compliance:
yes (incl. certificate)
Type of method:
Laser scattering/diffraction
Type of particle tested:
primary particle
Type of distribution:
volumetric distribution

Test material

Reference
Name:
Unnamed
Type:
Constituent
Test material form:
solid: crystalline

Results and discussion

Particle sizeopen allclose all
Key result
Percentile:
D10
Mean:
687 µm
Remarks on result:
other: no St. dev. available
Key result
Percentile:
D50
Mean:
1 107 µm
Remarks on result:
other: no St. dev. available
Key result
Percentile:
D90
Mean:
1 630 µm
Remarks on result:
other: no St. dev. available
Key result
Percentile:
other: D[3,2]
Mean:
1 020 µm
Remarks on result:
other: no St. dev. available
Key result
Percentile:
other: D[4,3]
Mean:
1 135 µm
Remarks on result:
other: no St. dev. available
Particle size distribution at different passagesopen allclose all
No.:
#1
Size:
< 4 µm
Distribution:
0 %
No.:
#2
Size:
< 10 µm
Distribution:
0 %
No.:
#3
Size:
< 100 µm
Distribution:
0 %

Any other information on results incl. tables

Resultsin detail

Fine fraction <2 mm: 71.6 g/100 g

Measured mean particle size distribution of the fine fraction:

measurement

d(0.1)

[μm]

d(0.5)

[μm]

d(0.9)

[μm]

D[3,2]

[μm]

D[4,3]

[μm]

1

670

1100

1639

1007

1129

2

704

1114

1622

1032

1141

mean*

687

1107

1630

1020

1135

 

Corrected particle size distribution of the test item (fine and coarse fraction):

measurement

<4 μm

[vol%]

<10 μm

[vol%]

<100 μm

[vol%]

1

0.00

0.00

0.00

2

0.00

0.00

0.00

mean*

0.00

0.00

0.00

*) Using all single measuring points from the measurements 1 and 2, a new distribution was calculated, giving the mean values for each parameter.

0[3,2]: mean by surface (Sauter)

0[4,3]: mean by volume (De Brouker)

Applicant's summary and conclusion