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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
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2013
Report date:
2013

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 110 (Particle Size Distribution / Fibre Length and Diameter Distributions)
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Type of method:
Laser scattering/diffraction
Type of distribution:
volumetric distribution

Test material

Constituent 1
Chemical structure
Reference substance name:
Peptones, casein
EC Number:
293-428-4
EC Name:
Peptones, casein
Cas Number:
91079-40-2
Molecular formula:
Not applicable
IUPAC Name:
Peptones, casein
Test material form:
solid: particulate/powder

Results and discussion

Particle sizeopen allclose all
Percentile:
D50
Mean:
27 µm
Remarks on result:
other: Median particle size determined by laser diffraction measurement(migrated from fields under 'Mass median diameter' as D50 percentile. No source field for Standard deviation.)
Percentile:
D10
Mean:
5 µm
Remarks on result:
other: Average of two test series
Percentile:
D50
Mean:
26.94 µm
Remarks on result:
other: Average of two test series
Percentile:
D90
Mean:
90.84 µm
Remarks on result:
other: Average of two test series

Applicant's summary and conclusion

Conclusions:
The test item peptone casein has a median particle size L50 = 27 µm which was determined by laser diffraction measurement.