[No public or meaningful name is available]

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

Test material information

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 size

Particle size 1

Percentile:

D10

Mean:

1.9 µm

Remarks on result:

other: Standard deviation not reported

Particle size 2

Percentile:

D50

Mean:

10.9 µm

Remarks on result:

other: Standard deviation not reported

Particle size 3

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.