Registration Dossier

Physical & Chemical properties

Particle size distribution (Granulometry)

Administrative data

Endpoint:
particle size distribution (granulometry)
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: Guideline study and GLP

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2010
Report Date:
2010

Materials and methods

Test guideline
Qualifier:
according to
Guideline:
other: DIN 66165
GLP compliance:
yes (incl. certificate)

Test material

Reference
Name:
Unnamed
Type:
Constituent
Type:
Constituent

Results and discussion

Particle sizeopen allclose all
Percentile:
D50
Mean:
other: not determined
Remarks on result:
other: Migrated from fields under 'Mass median diameter' as D50 percentile. No source field for Standard deviation.
Mean:
63 - 1 400 µm
Particle size distribution at different passagesopen allclose all
No.:
#1
Size:
< 63 µm
Distribution:
0.3 %
No.:
#2
Size:
63 - 125 µm
Distribution:
13.2 %
No.:
#3
Size:
125 - 250 µm
Distribution:
68.7 %
No.:
#4
Size:
250 - 500 µm
Distribution:
17.1 %
No.:
#5
Size:
500 - 1 000 µm
Distribution:
0.5 %
No.:
#6
Size:
1 000 - 1 400 µm
Distribution:
0 %
No.:
#7
Size:
1 400 - 15 000 µm
Distribution:
0.2 %

Any other information on results incl. tables

With granulometry the particle size distribution according to DIN 66165, April 1987 for sieves with a mesh size from 63 to 1400 µm, has to be determined.

Applicant's summary and conclusion

Conclusions:
The test item Gro 266 is a solid at room temperature with single particles and agglomerates. Within the sieve measurements the test item shows strong agglomeration especially close to the mesh sizes of 250 µm. Due to the agglomeration the measured particle size distribution will differ from the real particle size according to the definition to DIN 66165.