Registration Dossier
Registration Dossier
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EC number: 930-776-4 | CAS number: -
Particle size distribution (Granulometry)
Administrative data
- Endpoint:
- particle size distribution (granulometry)
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2008-9-18
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: Official print out from Coulter LS particle size analyser
Data source
Reference
- Reference Type:
- other company data
- Title:
- Unnamed
- Year:
- 2 008
- Report date:
- 2008
Materials and methods
Test guideline
- Qualifier:
- no guideline followed
- Principles of method if other than guideline:
- A standard method using a Coulter LS particle size analyser was used. The model was an optical model Fraunhofer (PIDS included). The pre-treatment consisted of agitation of the sample with 30 ml TPPS (5%) for 2 minutes at 550 rpm. The run length was 65 seconds with pump speed set to 51, obscuration 8% and PIDS obscur at 65%. The fluid used was water.
- GLP compliance:
- not specified
- Type of distribution:
- volumetric distribution
Test material
- Reference substance name:
- Silicomanganese manufacturing fumes dedusting solid residues
- EC Number:
- 930-776-4
- IUPAC Name:
- Silicomanganese manufacturing fumes dedusting solid residues
- Details on test material:
- - Name of test material (as cited in study report): Mn3O4
Constituent 1
Results and discussion
Particle size
- Percentile:
- D50
- Mean:
- ca. 1.783 µm
- Remarks on result:
- other: Migrated from fields under 'Mass median diameter' as D50 percentile. No source field for Standard deviation.
Particle size distribution at different passagesopen allclose all
- Size:
- < 100 µm
- Distribution:
- > 100 %
- Size:
- < 8 µm
- Distribution:
- > 96 %
Any other information on results incl. tables
Please see attached report for tabulated results.
Applicant's summary and conclusion
- Conclusions:
- The particle size distribution test indicates that 100 % of the substance has particles less than 100 microns and therefore can be considered to be potentially inhalable.
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