Registration Dossier
Registration Dossier
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EC number: 203-533-9 | CAS number: 107-93-7
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:
- 2012-10-11
- 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)
- Qualifier:
- according to guideline
- Guideline:
- EPA OPPTS 830.7520 (Particle Size, Fiber Length, and Diameter Distribution)
- Qualifier:
- according to guideline
- Guideline:
- other: ECHA Guidance chapter R. 7.1.14.2
- Qualifier:
- according to guideline
- Guideline:
- other: ISO 13320: Particle size analysis-Laser diffraction methods
- GLP compliance:
- yes
- Type of method:
- sieving
- Type of distribution:
- mass based distribution
- Specific details on test material used for the study:
- SOURCE OF TEST MATERIAL
- Source and lot/batch No.of test material: DEBR 012553 - Key result
- Percentile:
- D50
- Remarks on result:
- other: According to ECHA Guidance no further tests have to be performed, if there are no particles smaller than 100 µm.
- Conclusions:
- The fine fraction (< 2000 µm) of the test item Crotonic acid does not contain any particles smaller than 125 µm indicating that the test item has no respirable and inhalable particles.
Reference
The per cent by weight of the fine fraction < 2000 µm of the test item is 11.3% and does not contain any particles smaller than 125 µm.
Description of key information
Crotonic acid has no respirable and inhalable particles.
Additional information
Particle size distribution, determined by sieving (Consilab, 2012), indicated that the fine fraction (< 2000 µm) of the test item Crotonic acid does not contain any particles smaller than 125 µm indicating that the test item has no respirable and inhalable particles.
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