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Diss Factsheets

Physical & Chemical properties

Particle size distribution (Granulometry)

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Reference
Endpoint:
particle size distribution (granulometry)
Type of information:
other: Printout of results
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: The test was performed to ISO 13320
Qualifier:
according to guideline
Guideline:
other: ISO 13320
Deviations:
not specified
GLP compliance:
not specified
Type of method:
Laser scattering/diffraction
Type of distribution:
volumetric distribution
Percentile:
D50
Mean:
<= 5.038 µm
Remarks on result:
other: This value was obtained from measurements taken over 1 year from several batches each month. No source field for Standard deviation.
Size:
< 11.36 µm
Distribution:
<= 95 %
Remarks on result:
other: 95% of particles are less than 11.36 microns in diameter

The results are not based on a single test, but on many tests carried out over 1 year to give the median and D95 values.

Conclusions:
The results of the tests on particle size show that MnS would be an inhalation hazard as more than 10% of the particles are less than 100 microns in diameter.
Executive summary:

The particle size distribution of the test material was assessed according to ISO 13320 using laser diffraction.

Under the conditions of the study > 10 % of the particles are less than 100 microns in diameter.

Description of key information

The results of the tests on particle size show that MnS would be an inhalation hazard as more than 10 % of the particles are less than 100 microns in diameter.

Additional information

The particle size distribution of the test material was assessed according to ISO 13320 using laser diffraction.

Under the conditions of the study > 10 % of the particles are less than 100 microns in diameter.