Registration Dossier
Registration Dossier
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EC number: 205-265-8 | CAS number: 136-85-6
Particle size distribution (Granulometry)
Administrative data
- Endpoint:
- particle size distribution (granulometry)
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 1 (reliable without restriction)
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 018
- Report date:
- 2018
Materials and methods
Test guideline
- 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:
- according to ISO 13320 (2009): Particle size analysis - Laser diffraction methods
- GLP compliance:
- no
- Type of method:
- Laser scattering/diffraction
- Type of distribution:
- volumetric distribution
Test material
- Reference substance name:
- 6-methylbenzotriazole
- EC Number:
- 205-265-8
- EC Name:
- 6-methylbenzotriazole
- Cas Number:
- 136-85-6
- Molecular formula:
- C7H7N3
- IUPAC Name:
- 6-methylbenzotriazole
- Test material form:
- solid
Constituent 1
- Specific details on test material used for the study:
- Batch number: N6A3I
Expiry date: August 4, 2022
Results and discussion
- Mass median aerodynamic diameter:
- ca. 30.8 µm
Particle size
- Key result
- Percentile:
- D50
- Mean:
- ca. 30.8 µm
- St. dev.:
- 0.37
Particle size distribution at different passagesopen allclose all
- No.:
- #1
- Size:
- ca. 7.8 µm
- Distribution:
- ca. 10 %
- No.:
- #2
- Size:
- ca. 30.8 µm
- Distribution:
- ca. 50 %
- No.:
- #3
- Size:
- ca. 992.4 µm
- Distribution:
- ca. 90 %
Applicant's summary and conclusion
- Conclusions:
- The test item 5-Methyl-1H-benzotriazole has a median particle size D50 = 30.8 um, which was determined by laser diffraction measurement according to OECD test Guideline 110, ISO 13320 and EPA OCSPP guideline 830.7520.
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