Registration Dossier
Registration Dossier
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EC number: 946-877-1 | 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:
- 1 September, 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 - Method A: Particle Size Distribution (effective hydrodynamic radius)
- Version / remarks:
- adopted in 1981
- Qualifier:
- according to guideline
- Guideline:
- ISO 13320 (Particle size analysis - Laser diffraction methods)
- Qualifier:
- according to guideline
- Guideline:
- other: CIPAC MT 187: Particle Size Analysis by Laser Diffraction
- Version / remarks:
- adopted in 2009
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- Laser scattering/diffraction
- Type of particle tested:
- primary particle
- Type of distribution:
- volumetric distribution
- Percentile:
- D10
- Mean:
- 9 µm
- St. dev.:
- 0.1
- Percentile:
- D50
- Mean:
- 133.6 µm
- St. dev.:
- 4.4
- Percentile:
- D90
- Mean:
- 774.8 µm
- St. dev.:
- 4.7
- Conclusions:
- D50: 134 µm
- Executive summary:
The particle size distribution was determined by laser diffraction measurement. The analysis has been performed according to the testing procedures described in the following guidelines: OECD 110, CIPAC MT 187 and ISO 13320.
Conclusion
The median particle size D50 of the test item resulted to be 134 µm
Reference
Particle size, in µm
| D10 | D50 | D90 | |
| Test serie 1 | 9 | 136.7 | 778.1 |
| Test serie 2 | 8.9 | 130.4 | 771.4 |
Mean |
9 | 133.6 | 774.8 |
SD |
0.1 | 4.4 | 4.7 |
Description of key information
D50: 134 µm
Additional information
OECD 110, CIPAC MT 187, ISO 13320 - laser diffraction measurement
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