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EC number: 205-159-1 | CAS number: 134-84-9
Particle size distribution (Granulometry)
Administrative data
- Endpoint:
- particle size distribution (granulometry)
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 24.10.2017
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 017
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 110 (Particle Size Distribution / Fibre Length and Diameter Distributions) - Method B: Fibre Length and Diameter Distributions
- GLP compliance:
- yes (incl. QA statement)
- Remarks:
- consilab Gesellschaft für Anlagensicherheit mbH, Industriepark Höchst, G 830, 65926 Frankfurt am Main (Germany)
- Type of method:
- Laser scattering/diffraction
- Type of distribution:
- volumetric distribution
Test material
- Reference substance name:
- 4-methylbenzophenone
- EC Number:
- 205-159-1
- EC Name:
- 4-methylbenzophenone
- Cas Number:
- 134-84-9
- Molecular formula:
- C14H12O
- IUPAC Name:
- (4-methylphenyl)(phenyl)methanone
- Details on test material:
- - Name of test material (as cited in study report): benzophenone
- Substance type: aromatic ketone
- Physical state: solid (25.3°C; melting point: ca. 48°C)
- Analytical purity: not reported
- Impurities (identity and concentrations): not reported
- Stability under test conditions: not reported
- Storage condition of test material: not reported
Constituent 1
Results and discussion
Particle sizeopen allclose all
- Key result
- Percentile:
- D10
- Mean:
- 183.971 - 246.953 µm
- St. dev.:
- 15
- Remarks on result:
- other: Standard deviation to be updated according to final study report.
- Key result
- Percentile:
- D50
- Mean:
- 633.94 - 654.493 µm
- St. dev.:
- 15
- Remarks on result:
- other: Standard deviation to be updated according to final study report.
- Key result
- Percentile:
- D90
- Mean:
- 1 150.789 - 1 167.923 µm
- St. dev.:
- 15
- Remarks on result:
- other: Standard deviation to be updated according to final study report.
Applicant's summary and conclusion
- Conclusions:
- The particle size distribution D10, D50, and D90 of the fraction <2000 µm was determined to be in the ranges between 183.971 and 246.953, 633.940 and 654.493, and 1150.789 and 1167.923 µm, respectively.
- Executive summary:
The particle size distribution was investigated in a study conducted according to OECD Guideline 110 (Particle Size Distribution / Fibre Length and Diameter Distributions) - Method B: Fibre Length and Diameter Distributions. The test substance was sieved, the fraction <2000 µm separated (corresponding to 7.9% of the total amount) and subject of laser scattering/diffraction. The D10, D50, and D90 were determined to be in the ranges between 183.971 and 246.953, 633.940 and 654.493, and 1150.789 and 1167.923 µm, respectively.
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