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Diss Factsheets

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:
From 25 to 29 Jan 1999
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: Experimental result according to a reliable method
Qualifier:
no guideline followed
Principles of method if other than guideline:
The particle size of test substance was determined by mechanical sieving.
Apparatus: Endecotts Octagon sieve shaker and 8" diameter sieves to BS 410.
GLP compliance:
yes
Type of method:
sieving
Percentile:
D50
Mean:
150 - 300 µm
Remarks on result:
other: Median particle size dm(migrated from fields under 'Mass median diameter' as D50 percentile. No source field for Standard deviation.)
No.:
#1
Size:
< 300 µm
Distribution:
73.4 %
No.:
#2
Size:
< 150 µm
Distribution:
37.8 %
No.:
#3
Size:
< 106 µm
Distribution:
31.8 %
No.:
#4
Size:
< 90 µm
Distribution:
7.4 %
No.:
#5
Size:
< 75 µm
Distribution:
2.6 %
No.:
#6
Size:
< 63 µm
Distribution:
0 %
Conclusions:
The median particle size dm of the test substance is 150-300 μm (31.8% <106 μm).

Description of key information

The median particle size dm of the test substance is 150-300 μm (31.8% <106 μm).

Additional information

The median particle size dm of the test substance is 150-300 μm (31.8% <106 μm) (Merritt, 1999).