Registration Dossier
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EC number: 629-817-6 | CAS number: 1236215-65-8
Particle size distribution (Granulometry)
Administrative data
Link to relevant study record(s)
- Endpoint:
- particle size distribution (granulometry)
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2015-07-09 to 2015-07-10
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: The study was conducted in accordance with the official OECD guideline No 110 (1981).
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 110 (Particle Size Distribution / Fibre Length and Diameter Distributions)
- GLP compliance:
- no
- Remarks:
- he laboratory is GLP certified but this analysis was not a formal GLP study
- Type of method:
- microscopic examination
- Type of particle tested:
- primary particle
- Type of distribution:
- volumetric distribution
- Specific details on test material used for the study:
- listed as "Beta" Alumina Powder"
Batch Number 767
Purity 100% - Mass median aerodynamic diameter:
- 25.9 µm
- Geometric standard deviation:
- 6.8
- Key result
- Percentile:
- D50
- Mean:
- 48.5 µm
- St. dev.:
- 6.8
- Key result
- Percentile:
- D10
- Mean:
- 3.2 µm
- St. dev.:
- 3.9
- Key result
- Percentile:
- D90
- Mean:
- 678 µm
- St. dev.:
- 26
- Conclusions:
- The mass median diameter of the test substance Beta'' Alumina Powder was determined to be 48 µm; the mass median aerodynamic diameter (MMAD) was 26 µm.
Reference
Description of key information
The particle size distribution of Beta'' Alumina Powder was determined according to OECD Guudeline for testing of chemicals No. 110 "Particle Size Distribution/Fibre Length and Diameter Distributions" (May 12, 1981).
The mass median diameter was determined to be 48 µm; the mass median aerodynamic diameter (MMAD) was 26 µm.
Additional information
The Optical (Light) Microscopy and Laser Diffraction tests were performed to determine the particle size distribution of the test substance Beta'' Alumina Powder.
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