Registration Dossier
Registration Dossier
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EC number: 241-253-9 | CAS number: 17211-15-3
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:
- 16th Aug. 2017 - 21th Feb. 2018
- 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:
- not specified
- Qualifier:
- according to guideline
- Guideline:
- EPA OPPTS 830.7520 (Particle Size, Fiber Length, and Diameter Distribution)
- Deviations:
- not specified
- Qualifier:
- according to guideline
- Guideline:
- ISO 13320 (Particle size analysis - Laser diffraction methods)
- Deviations:
- not specified
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- Laser scattering/diffraction
- Type of particle tested:
- primary particle
- Type of distribution:
- volumetric distribution
- Mass median aerodynamic diameter:
- 244.4 µm
- Key result
- Percentile:
- D50
- Mean:
- 244.4 µm
- Remarks on result:
- other: average of two test series of 3 measurmenets each; St. deviation not given
- Percentile:
- D10
- Mean:
- 31 µm
- Remarks on result:
- other: average of two test series of 3 measurmenets each; St. deviation not given
- Percentile:
- D90
- Mean:
- 854.8 µm
- Remarks on result:
- other: average of two test series of 3 measurmenets each; St. deviation not given
- Conclusions:
- Median particle size D50 = 244.4 µm (laser diffraction measurements)
- Executive summary:
The test item has a median particle size D50 = 244 µm, which was determined by laser diffraction measurement.
Reference
Particle Size Distribution
Two test series of 3 measurements each were performed with the test item.
Figure 1 and Figure 2 show the results of both test series. On the left y-axis the fraction distribution and on the right y-axis the cumulative distribution is shown.
Test series 1 (Figure 1):
D10: 31.1 µm
D50: 241.8 µm (Median diameter)
D90: 827.8 µm
Test series 2 (Figure 2):
D10: 30.9 µm
D50: 247.0 µm (Median diameter)
D90: 881.7 µm
Average
D10: 31.0 µm
D50: 244.4 µm (Median diameter)
D90: 854.8 µm
Description of key information
Median particle size D50 = 244.4 µm (laser diffraction measurements)
Additional information
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