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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:
16 September 2010 - 17 September 2010
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: This study has been performed according to OECD and EC guidelines and according to GLP principles.

Data source

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

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to guideline
Guideline:
OECD Guideline 110 (Particle Size Distribution / Fibre Length and Diameter Distributions)
Deviations:
no
Qualifier:
according to guideline
Guideline:
other: ISO 13320:2009
Deviations:
no
Qualifier:
according to guideline
Guideline:
other: CIPAC MT 187
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Type of distribution:
other: laser diffraction particle size analysis

Test material

Constituent 1
Reference substance name:
No.338 RED
IUPAC Name:
No.338 RED
Details on test material:
Description: Red powder
Batch: 00004

Results and discussion

Particle sizeopen allclose all
Percentile:
D50
Mean:
17.509 µm
Remarks on result:
other: Migrated from fields under 'Mass median diameter' as D50 percentile. No source field for Standard deviation.
Percentile:
D10
Mean:
< 6.035 µm
St. dev.:
0.15
Percentile:
D50
Mean:
< 14.693 µm
St. dev.:
0.11
Percentile:
D90
Mean:
< 34.096 µm
St. dev.:
0.34

Any other information on results incl. tables

28.47 % by volume of sample was seen to be < 10.00 µm

Applicant's summary and conclusion

Conclusions:
Using the laser diffraction test (dry method), the Mass Median Aerodynamic Diameter (MMAD) of the test substance was determined to be 17.509 µm. Furthermore it was determined that 28.74 % by volume of sample was < 10.00 μm.