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EC number: 609-276-2 | CAS number: 3663-80-7
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:
- From 2019-01-11 to 2019-01-14
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Remarks:
- Study performed to ISO 13320 with no significant deviations and run in OECD GLP certified lab.
- Qualifier:
- according to guideline
- Guideline:
- ISO 13320 (Particle size analysis - Laser diffraction methods)
- Version / remarks:
- 2009
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- other: CIPAC MT 187 “Particle Size Analysis by Laser Diffraction”, Handbook K, 2007
- Version / remarks:
- 2007
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- Laser scattering/diffraction
- Type of distribution:
- volumetric distribution
- Specific details on test material used for the study:
- Purity: 99.7%
Batch No.: 80031745a - Mass median aerodynamic diameter:
- 32.6 µm
- Geometric standard deviation:
- 2.336
- Key result
- Percentile:
- D10
- Mean:
- 8.71 µm
- St. dev.:
- 0.036
- Key result
- Percentile:
- D50
- Mean:
- 27.5 µm
- St. dev.:
- 0.176
- Key result
- Percentile:
- D90
- Mean:
- 73.2 µm
- St. dev.:
- 0.833
- No.:
- #1
- Size:
- < 10 µm
- Distribution:
- 12.44 %
- Conclusions:
- MMAD of the test item was 32.6 µm, and D10, D50 and D90 were 8.71, 27.5 and 73.2 µm, respectively.
- Executive summary:
The particle size was determined using the dry powder module according to ISO 13320 (Particle size analysis - Laser diffraction methods).
MMAD of the test item was 32.6 µm, and D10, D50 and D90 were 8.71, 27.5 and 73.2 µm, respectively.
Reference
Particle Size Analysis using dry powder module |
Average (µm) |
Volume weighted mean |
35.1 |
Mode |
28.3 |
d10 (10 % of material is <) |
8.71 |
d50 (50 % of material is <) (median) |
27.5 |
d90 (90 % of material is <) |
73.2 |
MMAD (mass median aerodynamic diameter) |
32.6 |
Volume of sample < 10.00 µm |
12.44 % |
Description of key information
MMAD of the test item was 32.6 µm, and D10, D50 and D90 were 8.71, 27.5 and 73.2 µm, respectively.
Additional information
The particle size was determined using the dry powder module according to ISO 13320 (Particle size analysis - Laser diffraction methods).
MMAD of the test item was 32.6 µm, and D10, D50 and D90 were 8.71, 27.5 and 73.2 µm, respectively.
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