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Physical & Chemical properties

Particle size distribution (Granulometry)

Administrative data

Endpoint:
particle size distribution (granulometry)
Type of information:
experimental study
Adequacy of study:
key study
Study period:
05 July 1999
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: Study compiled in accordance with GLP. Study material is well characterised.

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1999
Report Date:
1999

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to
Guideline:
other: CIPAC Method MT 58, Dust Sieve Analysis
Qualifier:
according to
Guideline:
other: CIPAC Method MT 170, Dry Sieve Analysis.
GLP compliance:
yes
Type of method:
sieving

Test material

Reference
Name:
Unnamed
Type:
Constituent

Results and discussion

Particle size
Percentile:
D50
Mean:
>= 0.125 mm
Remarks on result:
other: 36.38% of the sample was >0.125mm. 17.80% of the test material was noted to have a mean diametre of <0.045mm(migrated from fields under 'Mass median diameter' as D50 percentile. No source field for Standard deviation.)
Particle size distribution at different passagesopen allclose all
Size:
> 1 mm
Distribution:
0.1 %
Remarks on result:
other: 0.1% > 1.000mm
Size:
> 0.71 - < 1 mm
Distribution:
0.24 %
Remarks on result:
other: 0.34% > 0.71mm
Size:
> 0.125 - < 0.71 mm
Distribution:
36.38 %
Remarks on result:
other: 36.72% > 0.125mm
Size:
> 0.075 - < 0.125 mm
Distribution:
20.76 %
Remarks on result:
other: 57.48% >0.075mm
Size:
> 0.045 - < 0.075 mm
Distribution:
24.51 %
Remarks on result:
other: 81.99% > 0.045mm
Size:
< 0.045 mm
Distribution:
17.8 %
Remarks on result:
other: 99.79% recovery

Applicant's summary and conclusion

Conclusions:
36.38% of the test material has a particle size of 0.125mm or greater and 17.80% has a particle size less than 0.045mm.