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EC number: 203-120-3 | CAS number: 103-53-7
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
- 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)
- Version / remarks:
- 1981
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- ISO 13320 (Particle size analysis - Laser diffraction methods)
- Version / remarks:
- 2009
- Deviations:
- no
- GLP compliance:
- no
- Type of method:
- Laser scattering/diffraction
- Type of particle tested:
- primary particle
- Type of distribution:
- volumetric distribution
- Key result
- Percentile:
- D50
- Mean:
- 107 µm
- St. dev.:
- 1.2
- Remarks on result:
- other: Average of two test series
- Conclusions:
- The median particle size D50 is 107 μm.
- Executive summary:
In the current study the particle size distribution of the test item was determined according to OECD Guideline 110. The study was not GLP.
The particle size distribution was determined using the laser diffraction method with as measuring device a Malvern Mastersizer 2000. In this test a diffraction pattern is elecited by the test item in the laser light beam. From the diffraction pattern the particle size distribution is calculated.
The test item had a median particle size D50 of 107 μm.
Reference
Test results:
Test series |
D10(µm) |
D50(µm) |
D90(µm) |
1 |
27.1 |
105.9 |
275.2 |
2 |
27.5 |
107.6 |
283.5 |
Average |
27.3 |
106.8 |
279.3 |
Description of key information
The test item has a median particle size D50 of 107 μm.
Additional information
One study assessed the particle size distribution of the test item. The study was performed according to OECD Guideline 110, but not GLP.
The
particle size distribution was determined using the
laser diffraction method, in which the diffraction
pattern elicited by the test item in the laser light
beam is used to calculate the particle size.
The test item had a median particle size D50 of 107 μm.
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