Registration Dossier
Registration Dossier
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EC number: 266-096-3 | CAS number: 66063-05-6
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:
- 2022-10-25 to 2022-10-25
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- ISO 13320 (Particle size analysis - Laser diffraction methods)
- Version / remarks:
- 2020
- Deviations:
- no
- 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:
- 1981
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- other: CIPAC Handbook K Test MT 187
- Version / remarks:
- 2002
- Deviations:
- no
- Qualifier:
- equivalent or similar to guideline
- Guideline:
- EPA OPPTS 830.7520 (Particle Size, Fiber Length, and Diameter Distribution)
- Version / remarks:
- 1996
- Deviations:
- no
- GLP compliance:
- yes
- Type of method:
- Laser scattering/diffraction
- Remarks:
- The particle size distribution is determined using laser diffraction.
- Type of particle tested:
- primary particle
- Type of distribution:
- volumetric distribution
- Key result
- Percentile:
- D10
- Mean:
- 3.2 µm
- Remarks on result:
- other: Average
- Key result
- Percentile:
- D50
- Mean:
- 10.4 µm
- Remarks on result:
- other: Average
- Key result
- Percentile:
- D90
- Mean:
- 22.3 µm
- Remarks on result:
- other: Average
- Percentile:
- D10
- Mean:
- 3.1 µm
- St. dev.:
- 0.1
- Remarks on result:
- other: Test series 1
- Percentile:
- D50
- Mean:
- 10.2 µm
- St. dev.:
- 0.1
- Remarks on result:
- other: Test series 1
- Percentile:
- D90
- Mean:
- 21.7 µm
- St. dev.:
- 0.2
- Remarks on result:
- other: Test series 1
- Percentile:
- D10
- Mean:
- 3.3 µm
- St. dev.:
- 0.1
- Remarks on result:
- other: Test series 2
- Percentile:
- D50
- Mean:
- 10.6 µm
- St. dev.:
- 0.1
- Remarks on result:
- other: Test series 2
- Percentile:
- D90
- Mean:
- 22.8 µm
- St. dev.:
- 0.2
- Remarks on result:
- other: Test series 2
- Conclusions:
- The particle size of the test item Pencycuron Technical was determined by laser diffraction measurement to be:
D10 = 3.2 µm
D50 = 10.4 µm
D90 = 22.3 µm - Executive summary:
According to ISO 13320 (2020), OECD Test Guideline 110 (1981) and CIPAC Handbook K Test MT 187 the particle size of the test item Pencycuron Technical was determined by laser diffraction measurement to be:
D10 = 3.2 µm
D50 = 10.4 µm
D90 = 22.3 µm
Reference
Description of key information
The particle size D50 of the test substance is 10.4 µm.
Additional information
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