Registration Dossier
Registration Dossier
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EC number: 205-769-8 | CAS number: 150-76-5
Particle size distribution (Granulometry)
Administrative data
- Endpoint:
- particle size distribution (granulometry)
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- From 2010-02-25 to 2010-04-09
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: Study conducted by skilled laboratory according to standardised guideline.
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 010
- Report date:
- 2010
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- other: EN 15051: workplace atmospheres. Measurement of dustiness of bulk materials. requirements and test methods.
- Principles of method if other than guideline:
- - Principle of test: Test was carried out using the reference test method A - the rotating drum method.
- Short description of test conditions: Temperature: 22,1°C (21 +/- 3°C required). Relative humidity: 48,8% (50 +/- 10%)
- Parameters analysed / observed: All dustiness mass fraction (inhalable, thoracic, respirable), bulk density, moisture content. - GLP compliance:
- no
- Type of method:
- rotating drum method
- Type of distribution:
- other: dustiness classification
Test material
- Reference substance name:
- Mequinol
- EC Number:
- 205-769-8
- EC Name:
- Mequinol
- Cas Number:
- 150-76-5
- Molecular formula:
- C7H8O2
- IUPAC Name:
- 4-methoxyphenol
Constituent 1
Results and discussion
Particle size
- Percentile:
- D50
- Remarks on result:
- other: 'Mass median diameter' as D50 percentile. No source field for Standard deviation.
Any other information on results incl. tables
| Mean value | Standard deviation | COV (%) | Dustiness classification | ||||
| Very low | Low | Moderate | High | ||||
| Inhalable dustiness mass fraction (mg/kg) | 5 | 0 | 9,1 | x | |||
| Thoracic dustiness mass fraction (mg/kg) | 2 | 0 | 9,5 | x | |||
| Respirable dustiness mass fraction (mg/kg) | 1 | 0 | 0,5 | x | |||
| Bulk density (kg/m3) | 790 | 4 | 0,5 | ||||
| Moisture content (%) | 1,506 | 0,108 | 7,2 | ||||
Applicant's summary and conclusion
- Conclusions:
- Paramethoxyphenol flakes as provided by the lead registrant have been shown to present a very low dustiness when tested in the rotative drum method of the EN 15051 standard.
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