Registration Dossier
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EC number: 204-279-1 | CAS number: 118-82-1
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:
- From January to March 2012
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: Guideline Study
- Reason / purpose for cross-reference:
- reference to same study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 110 (Particle Size Distribution / Fibre Length and Diameter Distributions)
- Deviations:
- no
- GLP compliance:
- yes
- Type of method:
- sieving
- Type of distribution:
- volumetric distribution
- Percentile:
- D50
- Mean:
- < 100 µm
- Remarks on result:
- other: 92% of the test item have an inhalable particle size.(migrated from fields under 'Mass median diameter' as D50 percentile. No source field for Standard deviation.)
- Conclusions:
- According to the sieve method, 92% of the test item have an inhalable particle size (< 100µm). 2.39% of the particles had a particle size of < 5.5 µm
- Executive summary:
According to the sieve method, 92% of the test item have an inhalable particle size (< 100µm). 2.39% of the particles had a particle size of < 5.5 µm
Reference
Particle size data acquired for the test item:
| Measurements | Methods | Results |
| Proportion oftest item having an inhalable particle size <100 µm | Sieve | 92.0% |
| Proportion oftest item having a thoracic particle size <10.0 µm | Cascade impactor | 8.73% |
| Proportion of test item having a respirable particle size <5.5 µm | Cascade impactor | 2.39% |
Description of key information
According to the sieve method, 92% of the test item have an inhalable particle size (< 100µm). 2.39% of the particles had a particle size of < 5.5 µm
Additional information
A study performed according to OECD Guideline 110 (Particle Size Distribution / Fiber Length and Diameter Distributions) revealed that 92% of the particles were below 100µm and 2.39% of the particles had a particle size of < 5.5 µm..Too few particles of a size < 10 µm were present to obtain a mass medium aerodynamic diameter.
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