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Particle size distribution (Granulometry)

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Endpoint:
particle size distribution (granulometry)
Type of information:
experimental study
Adequacy of study:
weight of evidence
Study period:
2005-05-25
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Comparable to guideline study with acceptable restrictions
Principles of method if other than guideline:
the particle size of the testing material is determined by mechanical sieving
GLP compliance:
yes
Type of distribution:
volumetric distribution
Percentile:
D50
Mean:
>= 150 - <= 300 µm
Remarks on result:
other: Standard deviation not available
No.:
#1
Size:
> 150 - < 300 µm
Distribution:
60.4 %
No.:
#2
Size:
> 106 - < 150 µm
Distribution:
18 %
No.:
#3
Size:
> 90 - < 106 µm
Distribution:
1.2 %
No.:
#4
Size:
> 0 - < 90 µm
Distribution:
0 %

Large particles remain in the 300 µm sieve with light caking observed in lower sieves. Therefore the sample is believed to be finer than the test indicates (due to observed blinding/agglomeration effects).

Endpoint:
particle size distribution (granulometry)
Type of information:
experimental study
Adequacy of study:
weight of evidence
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
test procedure in accordance with national standard methods with acceptable restrictions
Qualifier:
according to guideline
Guideline:
other: DIN 66165-2
Principles of method if other than guideline:
not reported
GLP compliance:
no
Type of distribution:
volumetric distribution
Percentile:
D10
Mean:
97 µm
Remarks on result:
other: standard deviation not reported
Percentile:
D50
Mean:
176 µm
Remarks on result:
other: standard deviation not reported
Percentile:
D90
Mean:
241 µm
Remarks on result:
other: standard deviation not reported

Description of key information

The particle size distribution: 
D10 97 µm
D50 176 µm
D90 241 µm

Additional information

The information of particle size distribution is taken from company data (Emery Oleochemicals and Oleon NV).

The main fraction of particles (60.4%) is observed in the range of 150 - 300 µm.