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EC number: 233-566-4 | CAS number: 10236-47-2
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 October, 4th to October 5th, 2016.
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 110 (Particle Size Distribution / Fibre Length and Diameter Distributions - Method A: Particle Size Distribution (effective hydrodynamic radius)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- ISO 13320 (Particle size analysis - Laser diffraction methods)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- other: CIPAC MT 187
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- Laser scattering/diffraction
- Type of particle tested:
- primary particle
- Type of distribution:
- volumetric distribution
- Key result
- Percentile:
- D10
- Mean:
- 0.81 µm
- St. dev.:
- 0.06
- Key result
- Percentile:
- D50
- Mean:
- 4.84 µm
- St. dev.:
- 0.06
- Key result
- Percentile:
- D90
- Mean:
- 15.43 µm
- St. dev.:
- 0.06
- Key result
- Percentile:
- other: D4,3
- Mean:
- 6.6 µm
- St. dev.:
- 0.06
- Remarks on result:
- other: Mass moment mean (De Brouckere Mean Diameter)
- Conclusions:
- The average particle size results for the test item are: D10 = 0.81 µm, D50 = 4.84 µm, D90 = 15.43 µm, D4,3 = 6.6 µm.
- Executive summary:
The particle size distribution for the test substance was determined according to OECD 110 / CIPAC MT 187 - Particle size analysis by laser diffraction (ISO 13320 -1), GLP study. The average particle size results for the test item are: D10 = 0.81 µm, D50 = 4.84 µm, D90 = 15.43 µm, D4,3 = 6.6 µm (Mass moment mean - De Brouckere Mean Diameter).
Reference
Table 1. Results of particle size distribution.
Particle size |
1 |
2 |
3 |
4 |
5 |
Average |
D10 |
0.81 |
0.83 |
0.83 |
0.80 |
0.80 |
0.81 |
D50 |
4.84 |
4.86 |
4.85 |
4.82 |
4.81 |
4.84 |
D90 |
15.60 |
15.50 |
15.47 |
15.30 |
15.27 |
15.43 |
D4,3 * |
6.67 |
6.63 |
6.62 |
6.55 |
6.53 |
6.60 |
Standard deviation [μm] |
0.06 |
|||||
Relative standard deviation [%] |
0.91 |
|||||
* Average d4,3: The mass moment mean (De Brouckere Mean Diameter)
Description of key information
Key study. Method according to OECD 110, GLP study. The average particle size results for the test item are: D10 = 0.81 µm, D50 = 4.84 µm, D90 = 15.43 µm, D4,3 = 6.6 µm.
Additional information
The particle size distribution for the test substance was
determined according to OECD 110 / CIPAC MT 187 - Particle size analysis
by laser diffraction (ISO 13320 -1), GLP study. The average particle
size results for the test item are: D10 = 0.81 µm, D50 = 4.84 µm, D90 =
15.43 µm, D4,3 = 6.6 µm (Mass moment mean - De
Brouckere Mean Diameter).
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