Registration Dossier
Registration Dossier
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EC number: 221-305-7 | CAS number: 3061-88-9
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:
- 10 Mar - 25 May 2020
- 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:
- 2009
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EPA OPPTS 830.7520 (Particle Size, Fiber Length, and Diameter Distribution)
- Version / remarks:
- 1996
- 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
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- Laser scattering/diffraction
- Type of particle tested:
- primary particle
- Type of distribution:
- volumetric distribution
- Percentile:
- D10
- Mean:
- 14 µm
- Remarks on result:
- other: mean of two measurements, therefore no St. dev. determined
- Key result
- Percentile:
- D50
- Mean:
- 129 µm
- Remarks on result:
- other: mean of two measurements, therefore no St. dev. determined
- Percentile:
- D90
- Mean:
- 342.6 µm
- Remarks on result:
- other: mean of two measurements, therefore no St. dev. determined
- Conclusions:
- According to ISO 13320 (2009) and OECD Test Guideline 110 (1981) the median particle size D50 of the test item L-Alanyl-L-Tyrosine Dihydrate was determined by laser diffraction measurement to be:
D50 = 129.0 µm
Reference
Description of key information
median particle size D50 = 129.0 µm (OECD 110, GLP)
Additional information
According to ISO 13320 (2009) and OECD Test Guideline 110 (1981) the median particle size D50 of the test item L-Alanyl-L-Tyrosine Dihydrate was determined by laser diffraction measurement to be:
D50 = 129.0 µm
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