Registration Dossier
Registration Dossier
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EC number: 938-695-6 | CAS number: -
Particle size distribution (Granulometry)
Administrative data
- Endpoint:
- particle size distribution (granulometry)
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- Testing was conducted between 13/06/2012 and 03/08/2012
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: Study conducted in compliance with agreed protocols, with no or minor deviations from standard test guidelines and/or minor methodological deficiencies, which do not affect the quality of relevant results
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 012
- Report date:
- 2012
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 110 (Particle Size Distribution / Fibre Length and Diameter Distributions)
- Deviations:
- no
- GLP compliance:
- not specified
- Type of distribution:
- counted distribution
Test material
- Reference substance name:
- PC-9S
- IUPAC Name:
- PC-9S
- Test material form:
- solid: particulate/powder
- Remarks:
- migrated information: powder
- Details on test material:
- Sample name: PC-9S
The test material is an off-white solid at room temperature.
Constituent 1
Results and discussion
Particle sizeopen allclose all
- Percentile:
- D50
- Mean:
- 291.2 µm
- Remarks on result:
- other: Migrated from fields under 'Mass median diameter' as D50 percentile. No source field for Standard deviation.
- Percentile:
- D10
- Mean:
- 11.68 µm
- Percentile:
- D50
- Mean:
- 113.9 µm
- Percentile:
- D90
- Mean:
- 936.8 µm
Any other information on results incl. tables
The small quantities used as samples must be representative of product batches comprising many kilograms; therefore, sampling and sample handling require great care. For example, small particles often form agglomerates; therefore, sample pre-treatment (e.g. the addition of dispersing agents, agitation, or low-level ultrasonic treatment) may be required before the primary particle size can be determined. However, great care must be taken to avoid changing the particle size distribution. In the case of highly stable aggregates, a strict distinction between primary particles and agglomerates is not always useful.
Applicant's summary and conclusion
- Conclusions:
- The mean particle size of PC-9S was determined to be 291.2 µm by coulter counter method.
- Executive summary:
The particle size was conducted according to OECD guideline 110. The mean particle size of PC-9S was determined to be 291.2 µm by coulter counter method.
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