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EC number: 807-111-0 | CAS number: 1211441-98-3
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:
- Nov 2017 - Feb 2108
- 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)
- Qualifier:
- according to guideline
- Guideline:
- other: CIPAC MT 187 “Particle Size Analysis by Laser Diffraction”, Handbook K, 2007
- GLP compliance:
- yes
- Type of method:
- Laser scattering/diffraction
- Type of particle tested:
- primary particle
- Type of distribution:
- volumetric distribution
- Mass median aerodynamic diameter:
- ca. 5.802 µm
- Geometric standard deviation:
- ca. 0
- Key result
- Percentile:
- D10
- Mean:
- ca. 1.461 µm
- St. dev.:
- 0.3
- Key result
- Percentile:
- D50
- Mean:
- ca. 5.802 µm
- St. dev.:
- 0.3
- Key result
- Percentile:
- D90
- Mean:
- ca. 35.079 µm
- St. dev.:
- 2.8
- Executive summary:
Full Test Results
RUN 1 RUN 2 RUN 3 RUN 4 RUN 5 Average**
Volume weighted mean 14.524 14.426 14.805 15.339 15.233 14.865
Median 5.805 5.777 5.793 5.822 5.815 5.802
Mode 5.326 5.327 5.322 5.325 5.331 5.326
MMAD * 6.619 6.586 6.605 6.638 6.630 6.616
d10 - 10 % of material is < 1.461 1.455 1.459 1.466 1.465 1.461
d50 - 50 % of material is < 5.805 5.777 5.793 5.822 5.815 5.802
d90 - 90 % of material is < 35.430 33.538 34.527 36.272 35.754 35.079
All results are in μm
* Mass median aerodynamic diameter
** Average result is calculated from the entirety of data captured in each run and is not a simple arithmetic mean.
71.65 % by volume of sample was seen to be < 10.00 μm..
Reference
Coefficient of variation for d50 is less than 3%; d10 and d90 are less than 5%. Thus repeatability of the characteristic particles in the size distribution are within the acceptable limits as per the ISO 13320-1 test standard.
Description of key information
d10 - 10 % of material is 1.461
d50 - 50 % of material is 5.802
d90 - 90 % of material is 35.079
Additional information
Full Test Results
RUN 1 RUN 2 RUN 3 RUN 4 RUN 5 Average**
Volume weighted mean 14.524 14.426 14.805 15.339 15.233 14.865
Median 5.805 5.777 5.793 5.822 5.815 5.802
Mode 5.326 5.327 5.322 5.325 5.331 5.326
MMAD * 6.619 6.586 6.605 6.638 6.630 6.616
d10 - 10 % of material is < 1.461 1.455 1.459 1.466 1.465 1.461
d50 - 50 % of material is < 5.805 5.777 5.793 5.822 5.815 5.802
d90 - 90 % of material is < 35.430 33.538 34.527 36.272 35.754 35.079
All results are in μm
* Mass median aerodynamic diameter
** Average result is calculated from the entirety of data captured in each run and is not a simple arithmetic mean.
71.65 % by volume of sample was seen to be < 10.00 μm..
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