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EC number: 229-175-3 | CAS number: 6422-83-9
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:
- 2015-12-08 to 2016-03-07
- 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)
- Version / remarks:
- adpopted 1981
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- ISO 13320 (Particle size analysis - Laser diffraction methods)
- Version / remarks:
- adopted 2009
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- Laser scattering/diffraction
- Type of particle tested:
- primary particle
- Type of distribution:
- mass based distribution
- Mass median aerodynamic diameter:
- 50.1 µm
- Key result
- Percentile:
- D10
- Mean:
- 8.1 µm
- Remarks on result:
- other: standard deviation not specified
- Key result
- Percentile:
- D50
- Mean:
- 50.1 µm
- Remarks on result:
- other: standard deviation not specified
- Key result
- Percentile:
- D90
- Mean:
- 125.5 µm
- Remarks on result:
- other: standard deviation not specified
- Conclusions:
- In the present study the particle size distribution of the test substance was determined using laser diffraction. The powder is brought via a powder dispersing cell into the laser light beam and the diffraction pattern is determined. From the diffraction pattern the particle size distribution was calculated. The test item has a median particle size D50 = 50.1 µm.
Reference
Two test series of 3 measurements each were performed with the fine fraction of the test item.
Test series 1:
D10: 8.0 µm
D50: 49.2 µm (Median diameter)
D90: 123.5 µm
Test series 2:
D10: 8.2 µm
D50: 51.1 µm (Median diameter)
D90: 127.4 µm
Average
D10: 8.1 µm
D50: 50.1 µm (Median diameter)
D90: 125.5 µm
Description of key information
In the present study the particle size distribution of the test substance was determined using laser diffraction. The test item has a median particle size D50 = 50.1 µm.
Additional information
In a study according to OECD guideline 110, (1981) the particle size distribution of 2,4 -Bismaleimidotoluene was determined using laser diffraction. The powder is brought via a powder dispersing cell into the laser light beam and the diffraction pattern is determined. Two test series of 3 measurements each were performed with the fine fraction of the test item. From the diffraction pattern the particle size distribution was calculated. The test item has a median particle size D50 = 50.1 µm.
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