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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:
2010-01-05 - 2010-02-26
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
other: sedimentation following ISO 13317-2
Version / remarks:
sedimentation following ISO 13317-2
Deviations:
not applicable
GLP compliance:
yes (incl. QA statement)
Type of method:
sedimentation (gravitational settling)
Type of distribution:
volumetric distribution
Key result
Percentile:
D50
Remarks on result:
other: Migrated from fields under 'Mass median diameter' as D50 percentile. No source field for Standard deviation.
No.:
#1
Size:
104 µm
Distribution:
78.21 %
Remarks on result:
other: Stokes diameter
No.:
#2
Size:
72.43 µm
Distribution:
63.12 %
Remarks on result:
other: Stokes diameter
No.:
#3
Size:
50.35 µm
Distribution:
34.84 %
Remarks on result:
other: Stokes diameter
No.:
#4
Size:
40.39 µm
Distribution:
21.56 %
Remarks on result:
other: Stokes diameter
No.:
#5
Size:
34.35 µm
Distribution:
17.72 %
Remarks on result:
other: Stokes diameter
No.:
#6
Size:
27.52 µm
Distribution:
12.11 %
Remarks on result:
other: Stokes diameter
No.:
#7
Size:
23.36 µm
Distribution:
9.74 %
Remarks on result:
other: Stokes diameter
No.:
#8
Size:
16.01 µm
Distribution:
5.01 %
Remarks on result:
other: Stokes diameter
No.:
#9
Size:
11.08 µm
Distribution:
2.95 %
Remarks on result:
other: Stokes diameter
No.:
#10
Size:
7.66 µm
Distribution:
4.14 %
Remarks on result:
other: Stokes diameter, measuring inaccurracy at small values based on test method

The particle size distribution of P 101/04 was determined by sedimentation following ISO 13317-2 - Fixed Pipette Method. The determination was performed in duplicate, using saturated solution in H20 as suspending medium. Very few particles smaller than 10 μm were determined.

Conclusions:
The particle size distribution of P 101/04 was determined by sedimentation following OECD guideline 110 and ISO 13317-2 - Fixed Pipette Method. The determination was performed in duplicate, using saturated solution in H20 as suspending medium. The particle size distribution of P 101/04
shows not single peaks, but a continuous distribution roughly between 23 and 104 µm, leaving fractions of approx. 34% above 104 µm and less than 10% below 23 µm. 2.95 % particles were smaller than 11 μm.
Executive summary:

The particle size distribution of P 101/04 was determined by sedimentation following OECD guideline 110 and ISO 13317-2 - Fixed Pipette Method. The determination was performed in duplicate, using saturated solution in H20 as suspending medium.

The particle size distribution of P 101/04 shows not single peaks, but a continuous distribution roughly between 23 and 104 µm, leaving fractions of approx. 34% above 104 µm and less than 10% below 23 µm. 2.95 % particles were smaller than 11 μm.

Description of key information

The particle size distribution of  P 101/04 shows not single peaks, but a continuous distribution roughly between 23 and 104 µm, leaving fractions of approx. 34% above 104 µm and less than 10% below 23 µm. 2.95 % particles were smaller than 11 μm.

Additional information

The particle size distribution of P 101/04 shows not single peaks, but a continuous distribution roughly between 23 and 104 µm, leaving fractions of approx. 34% above 104 µm and less than 10% below 23 µm. 2.95 % particles were smaller than 11 μm.