Registration Dossier
Registration Dossier
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EC number: 215-609-9 | CAS number: 1333-86-4
Nanomaterial dustiness
Administrative data
- Endpoint:
- nanomaterial dustiness
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- March 2020
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 020
- Report date:
- 2020
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- other: DIN 55992-1:2006 ("Determination of a parameter for the dust formation of pigments and extenders - Part 1: Rotation method").
- GLP compliance:
- no
- Other quality assurance:
- ISO/IEC 17025 (General requirements for the competence of testing and calibration laboratories)
- Type of method:
- rotating cylinder
- Details on methods and data evaluation:
- Dustiness values for the respirable, thoracic and inhalable fractions were calculated from the particle size distribution in accordance with DIN EN 481. The released fine dust is deposited on the different impactor stages. The dust masses deposited on the 7 individual stages (linked to the aerodynamic diameter) of the cascade impactor were weighed and the total dustiness derived by adding the deposited masses of all impactor stages, including impactor correction factors.
- Sampling:
- Sample size: 1.001 g
Test material
- Reference substance name:
- Carbon black
- EC Number:
- 215-609-9
- EC Name:
- Carbon black
- Cas Number:
- 1333-86-4
- Molecular formula:
- C
- IUPAC Name:
- carbon
- Test material form:
- solid: particulate/powder
Constituent 1
Data gathering
- Instruments:
- A Heubach dust meter was modified in a way that a 7-stage cascade impactor was inserted instead of the filter. Flow rates were adapted.
Results and discussion
Dustiness indexopen allclose all
- Key result
- Mean:
- 63.42 other: mg/g
- Remarks on result:
- other: Total Dustiness
- Key result
- Mean:
- 38.94 other: mg/g
- Remarks on result:
- other: Inhalable fraction
- Key result
- Mean:
- 13.27 other: mg/g
- Remarks on result:
- other: thoracic fraction
- Key result
- Mean:
- 5.27 other: mg/g
- Remarks on result:
- other: Respirable fraction
Any other information on results incl. tables
Humidity of the sample was determined in accordance with DIN 1812 -1 and found to be 0.3.
Total dust mass in impactor: 31.78 mg
Applicant's summary and conclusion
- Conclusions:
- The total dustiness (whole fraction) was determined to be 63.42 mg/g
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