Registration Dossier
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EC number: 617-769-9 | CAS number: 858956-08-8
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:
- 2019-09-27
- 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)
- Version / remarks:
- 2009
- GLP compliance:
- yes (incl. QA statement)
- Remarks:
- Hessisches Ministerium für Umwelt, Klimaschutz, Landwirtschaft und Verbraucherschutz, Wiesbaden, Germany
- Type of method:
- Laser scattering/diffraction
- Type of distribution:
- volumetric distribution
- Key result
- Percentile:
- D10
- Mean:
- 2.8 µm
- Remarks on result:
- other: st. dev. not reported
- Key result
- Percentile:
- D50
- Mean:
- 11.8 µm
- Remarks on result:
- other: st. dev. not reported
- Key result
- Percentile:
- D90
- Mean:
- 48.6 µm
- Remarks on result:
- other: st. dev. not reported
- Conclusions:
- The tested substance consisted of transparent particles, which appeared irregularly shaped.
The particle size, deduced from the particle size distributions, are:
L10: 2.8 µm
L50: 11.8 µm
L90: 48.6 µm
Reference
For each test series, fractions and the siftings are presented in volume % as a function of the particle size.
The median particle size L50 (D (v, 0.5): 50 % of particle volume or particle mass with lower particle diameter) deduced from these distributions are:
1st test series: L50 = 11.71 µm
2nd test series: L50 = 11.95 µm
The average of the median particle size L50 is 11.8 µm
The particle size L10 (D (v, 0.1): 10 % of particle volume or particle mass with lower particle diameter) deduced from these distributions are:
1st test series: L10 = 2.76 µm
2nd test series: L10 = 2.81 µm
The average of the particle size L10 is 2.8 µm
The particle size L90 (D (v, 0.9): 90 % of particle volume or particle mass with lower particle diameter) deduced from these distributions are:
1st test series: L90 = 46.68 µm
2nd test series: L90 = 50.60 µm
The average of the particle size L90 is 48.6 µm
The measurements showed a maximum at approximately 10 µm. A shoulder was observed at approximately 200 µm.
Description of key information
Volumetric distribution: D50 = 11.8 µm, D10 = 2.8 µm, D90 = 48.6 µm (ISO 13320, Laser scattering/diffraction)
Additional information
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