Registration Dossier
Registration Dossier
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EC number: 911-553-0 | 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:
- 25.10.2017 - 10.11.2017
- 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)
- Qualifier:
- according to guideline
- Guideline:
- EPA OPPTS 830.7520 (Particle Size, Fiber Length, and Diameter Distribution)
- Qualifier:
- according to guideline
- Guideline:
- ISO 13320 (Particle size analysis - Laser diffraction methods)
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- Laser scattering/diffraction
- Type of distribution:
- volumetric distribution
- Mass median aerodynamic diameter:
- 43.6 µm
- Geometric standard deviation:
- 0.64
- Key result
- Percentile:
- D50
- Mean:
- 43 µm
- St. dev.:
- 0.64
- Key result
- Percentile:
- D10
- Mean:
- 7.6 µm
- St. dev.:
- 0
- Key result
- Percentile:
- D90
- Mean:
- 169 µm
- St. dev.:
- 2.3
- Conclusions:
- The test item N-(hydroxymethyl) stearamide has a median particle size D(50) = 43 µm and a MMAD of 43,6 µm.
- Executive summary:
The test item N-(hydroxymethyl) stearamide has a median particle size D(50) = 43 µm, which was determined by laser diffraction measurement and a MMAD of 43,6 µm.
Reference
Description of key information
The particle size distribution is measured in an OECD 110 guideline study. The test item has a median particle size D(50) = 43 µm and a MMAD of 43.6 µm.
Additional information
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