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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:
13 September 2012
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Study conducted in compliance with agreed protocols, with no or minor deviations from standard test guidelines and/or minor methodological deficiencies, which do not affect the quality of the relevant results.
Qualifier:
equivalent or similar to guideline
Guideline:
other: ISO 13320:2009
Deviations:
not specified
GLP compliance:
not specified
Type of method:
Laser scattering/diffraction
Type of distribution:
volumetric distribution
Percentile:
D50
Remarks on result:
other: Migrated from fields under 'Mass median diameter' as D50 percentile. No source field for Standard deviation.
Percentile:
D10
Mean:
0.74 µm
Remarks on result:
other: Standard deviation not reported
Percentile:
D50
Mean:
1.74 µm
Remarks on result:
other: Standard deviation not reported
Percentile:
D90
Mean:
5.1 µm
Remarks on result:
other: Standard deviation not reported

Table 1 Results of the Samples Analysed

Sample

D10 (µm)

D50 (µm)

D90 (µm)

D100 (µm)

1

0.76

1.90

5.58

60.26

2

0.77

1.81

4.97

39.81

3

0.72

1.65

5.54

52.48

4

0.73

1.71

4.72

39.81

5

0.72

1.67

4.98

45.71

6

0.73

1.71

5.33

52.48

7

0.72

1.68

5.10

45.71

8

0.73

1.67

5.13

39.81

9

0.77

1.97

5.06

34.67

10

0.71

1.61

4.54

39.81

Average

0.74

1.74

5.10

45.06
Conclusions:
Under the conditions of the test, the D50 value of the test material was determined to be 1.74 µm.
Executive summary:

The particle size distribution of the test material was investigated broadly in accordance with the standardised guideline ISO 13320:2009 using Laser diffraction. The dispersion liquid was water containing a 5 % solution of sodium hexametaphosphate in the ratio 20:1.

Under the conditions of the test, the D50 value of the test material was determined to be 1.74 µm.

Description of key information

Under the conditions of the test, the D50 value of the test material was determined to be 1.74 µm.

Additional information

The particle size distribution of the test material was investigated broadly in accordance with the standardised guideline ISO 13320:2009 using Laser diffraction. The dispersion liquid was water containing a 5 % solution of sodium hexametaphosphate in the ratio 20:1.

Under the conditions of the test, the D50 value of the test material was determined to be 1.74 µm.