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EC number: 935-977-0 | CAS number: -
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:
- 11.11.2008 - 22.01.2009
- 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:
- no
- Qualifier:
- according to guideline
- Guideline:
- EPA OPPTS 830.7520 (Particle Size, Fiber Length, and Diameter Distribution)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- ISO 13320 (Particle size analysis - Laser diffraction methods)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- other: CIPAC MT 187: Particle Size Analysis by Laser Diffraction
- 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:
- 215.4 µm
- St. dev.:
- 1.8
- Percentile:
- D10
- Mean:
- 28.8 µm
- St. dev.:
- 0.03
- Percentile:
- D90
- Mean:
- 862.4 µm
- St. dev.:
- 16.6
- Conclusions:
- The test item has a median particle size D50 = 215.4 µm.
- Executive summary:
A study was conducted according to OECD TG 110, OPPTS 830.7520 and ISO 13320 to determine the particle size distribution of the test item. The particle size distribution was determined using laser diffraction. Two test series were performed with the test item. The test item has a median particle size D50 = 215.4 µm, which was determined by laser diffraction measurement.
Reference
The median particle size D50 (50 % of particle volume with lower particle diameter) from the two series are:
1st test series: D50 = 213.53 µm
2nd test series: D50 = 217.19 µm
The average of the median particle size D50 was 215.4 µm.
The particle size D10 (10 % of particle volume with lower particle diameter) from the two series are:
1st test series: D10 = 28.84 µm
2nd test series: D10 = 28.79 µm
The average of the particle size D10 was 28.8 µm.
The particle size D90 (90 % of particle volume with lower particle diameter) from the two test series are:
1st test series: D90 = 845.79 µm
2nd test series: D90 = 879.00 µm
The average of the particle size D90 was 862.4 µm.
Description of key information
The test has a median particle size D50 = 215.4 µm.
Additional information
A study was conducted according to OECD TG 110, OPPTS 830.7520 and ISO 13320 to determine the particle size distribution of the test item. The particle size distribution was determined using laser diffraction. Two test series were performed with the test item. The test has a median particle size D50 = 215.4 µm, which was determined by laser diffraction measurement.
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