Registration Dossier
Registration Dossier
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EC number: 916-839-9 | 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:
- February 27, 2017
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- test procedure in accordance with generally accepted scientific standards and described in sufficient detail
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 110 (Particle Size Distribution / Fibre Length and Diameter Distributions)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- ISO 13320 (Particle size analysis - Laser diffraction methods)
- Deviations:
- no
- GLP compliance:
- no
- Type of method:
- Laser scattering/diffraction
- Type of particle tested:
- primary particle
- Type of distribution:
- volumetric distribution
- Percentile:
- D10
- Mean:
- 2.7 µm
- St. dev.:
- 0.07
- Percentile:
- D50
- Mean:
- 9.5 µm
- St. dev.:
- 0.21
- Percentile:
- D90
- Mean:
- 158.9 µm
- St. dev.:
- 7.57
- Conclusions:
- D50: 9.5 µm
- Executive summary:
The particle size distribution was determined using laser diffraction. As measuring device, a Malvern Mastersizer 2000 was used. The powder was brought via a powder dispersing cell Scirocco 2000 into the laser light beam and the diffraction pattern was determined. From the diffraction pattern the particle size distribution was calculated.
Two test series of 3 measurements each were performed with the test item.
The average of D10 resulted to be 2.7 µm; the average of D50 resulted to be 9.5 µm; the average of D90 resulted to be 158.9 µm.
Conclusion
D50: 9.5 µm
Reference
| Particle size (µm) | |||
| D10 | D50 | D90 | |
| Test series 1 | 2.8 | 9.6 | 164.2 |
| Test series 2 | 2.7 | 9.3 | 153.5 |
| Average | 2.7 | 9.5 | 158.9 |
| SD | 0.07 | 0.21 | 7.57 |
Description of key information
D50: 9.5 µm
Additional information
ISO 13320 - Laser scattering/diffraction
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