Registration Dossier

Physical & Chemical properties

Particle size distribution (Granulometry)

Currently viewing:

Administrative data

Link to relevant study record(s)

Reference
Endpoint:
particle size distribution (granulometry)
Type of information:
experimental study
Adequacy of study:
key study
Study period:
03.2017-06.2017
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to
Guideline:
ISO 13320 (Particle size analysis - Laser diffraction methods)
Version / remarks:
1981
GLP compliance:
yes (incl. certificate)
Type of method:
Laser scattering/diffraction
Type of particle tested:
primary particle
Type of distribution:
volumetric distribution
Mass median aerodynamic diameter:
>= 876.4 - <= 884.5 µm
Geometric standard deviation:
2.72
Key result
Percentile:
D10
Mean:
271.2 µm
St. dev.:
14.47
Key result
Percentile:
D50
Mean:
880.4 µm
St. dev.:
4.08
Key result
Percentile:
D90
Mean:
1 487.8 µm
St. dev.:
3.07

The percentages of the cumulative particle size distribution for selected particle sizes are shown in the following table:

Particle size

[µm]

Passing [%]

Test Series 1

Passing [%]

Test Series

Passing[%]

Mean

2

0.00

0.00

0.00

4

0.23

0.24

0.24

10

3.26

3.72

3.49

20

3.59

4.28

3.94

100

5.20

5.65

5.43

200

7.92

8.36

8.14

250

9.20

9.82

9.51

500

17.63

18.68

18.16

1000

60.24

60.89

60.57

2000

100.00

100.00

100.00

Description of key information

The particle size distribution is determined with laser diffraction according to the guidelines OECD 110 (1981), ISO 13320 (2009) and EPA OCSPP 830.7520 (1996).

The following average diameters (Vol-% of particles) are determined for

D10 = 271.2 µm

D50 = 880.4 µm (median diameter)

D90= 1487.8 µm

Additional information