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EC number: 953-265-8 | CAS number: -
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:
- 26.04.2021-28.04.2021
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- 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:
- 3.407 µm
- St. dev.:
- 4.1
- Key result
- Percentile:
- D50
- Mean:
- 37.64 µm
- St. dev.:
- 4.1
- Key result
- Percentile:
- D90
- Mean:
- 151.8 µm
- St. dev.:
- 4.1
- Key result
- Percentile:
- other: d4,3,
- Mean:
- 59.54 µm
- St. dev.:
- 4.1
- Conclusions:
- The average particle size results for the test item are: D10 = 3.41 μm, D50 = 37.64 μm, D90 = 151.80
μm, D4,3 = 59.54 μm. - Executive summary:
The particle size distribution for the test substance was determined according to CIPAC MT 187/ISO 13320-1, under GLP conditions. The average particle size results for the test item are: D10 = 3.41 μm, D50 = 37.64 μm, D90 = 151.80 μm, D4,3 = 59.54 μm (Mass moment mean - De Brouckere Mean Diameter).
Reference
Table 1. Results of particle size distribution
Particle size | Test number and fraction size [µm] | |||||
1 | 2 | 3 | 4 | 5 | Average | |
d10 [µm] | 3.508 | 4.246 | 4.440 | 2.781 | 2.058 | 3.4066 |
d50 [µm] | 35.26 | 38.06 | 37.55 | 41.65 | 35.67 | 37.64 |
d90 [µm] | 135.4 | 146.6 | 145.7 | 170.9 | 160.5 | 151.8 |
* d4,3, [µm] | 54.41 | 59.10 | 58.62 | 65.85 | 59.74 | 59.54 |
Average d43, [µm] | 59.54 | |||||
Standard deviation, [µm] | 4.1 | |||||
Relative Standard Deviation, [%] | 6.88% | |||||
* Average d43, [µm] – The mass moment mean (De Brouckere Mean Diameter)
Description of key information
Key study. Method according to CIPAC MT 187/ISO 13320-1, GLP study. The average particle size results for the test item are: D10 = 3.41 μm, D50 = 37.64 μm, D90 = 151.80μm, D4,3 = 59.54 μm.
Additional information
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