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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:
May/2022
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Non GLP, non guideline, experimental study, limitations in design and/or reporting but otherwise adequate for assessment.

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2022
Report date:
2022

Materials and methods

Test guideline
Qualifier:
no guideline followed
Principles of method if other than guideline:
Particle size distribution was measured by laser diffraction of raised dust in air. The median value is the particle size, which is exceeded by 50% (referring to mass or volume) of the particles. The sample was a white powder. It was dried in a vacuum for 1 h at 50˚C.
GLP compliance:
not specified
Type of method:
Laser scattering/diffraction
Type of distribution:
counted distribution

Test material

Constituent 1
Reference substance name:
Amorphous barium copper zinc borobismuthate
Molecular formula:
Not applicable as UVCB
IUPAC Name:
Amorphous barium copper zinc borobismuthate
Test material form:
solid: particulate/powder

Results and discussion

Particle sizeopen allclose all
Percentile:
D10
Mean:
1.9 µm
Remarks on result:
other: Standard deviation not reported
Percentile:
D50
Mean:
10.9 µm
Remarks on result:
other: Standard deviation not reported
Percentile:
D90
Mean:
35.2 µm
Remarks on result:
other: Standard deviation not reported

Any other information on results incl. tables

Information on passage was not available.

Applicant's summary and conclusion

Conclusions:
D50 of tested sample "Amorphous barium copper zinc borobismuthate" measured by laser diffraction was 10.9 micrometers.
Executive summary:

D50 of tested sample "Amorphous barium copper zinc borobismuthate" measured by laser diffraction was 10.9 micrometers. This study is considered reliable (2), it is a non GLP, non guideline, experimental study with limitations in design and/or reporting but it is otherwise adequate for assessment.