Registration Dossier
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EC number: 206-986-0 | CAS number: 407-41-0
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 2017-08-17 to 2017-11-28
- 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:
- ISO 13320 (Particle size analysis - Laser diffraction methods)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EPA OPPTS 830.7520 (Particle Size, Fiber Length, and Diameter Distribution)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Remarks:
- consilab Gesellschaft für Anlagensicherheit mbH, Industriepark Höchst, G830/G840, 65926 Frankfurt am Main, Germany
- Type of method:
- Laser scattering/diffraction
- Type of particle tested:
- primary particle
- Type of distribution:
- volumetric distribution
- Percentile:
- D10
- Mean:
- 3.2 µm
- St. dev.:
- 0
- Key result
- Percentile:
- D50
- Mean:
- 8 µm
- St. dev.:
- 0.14
- Percentile:
- D90
- Mean:
- 293.5 µm
- St. dev.:
- 15.41
- Conclusions:
- The test item contains a coarse fraction (>2000 µm) of 66.2 % and a fine fraction (<2000 µm) of 33.8 %. The fine fraction has a median particle size D50 = 8 µm, which was determined by laser diffraction measurement.
- 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 of 3 measurements each were performed with the test item. The test item has a median particle size D50 = 8.0 µm, which was determined by laser diffraction measurement.
Reference
Description of key information
The test item contains a coarse fraction (>2000 µm) of 66.2 % and a fine fraction (<2000 µm) of 33.8 %. The fine fraction has a median particle size D50 = 8 µm, which was determined by laser diffraction measurement.
Additional information
A study (reference 4.5-1) 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 of 3 measurements each were performed with the test item. The test item has a median particle size D50 = 8.0 µm, which was determined by laser diffraction measurement.
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