Registration Dossier
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EC number: 944-092-9 | 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:
- June 23, 2015
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- test procedure in accordance with generally accepted scientific standards and described in sufficient detail
- Principles of method if other than guideline:
- Laser light scattering. The test was performed according to the SOP - STR 071 (Hydro 2000S) protocol.The particle size distribution was analyzed using the Mastersizer 2000 tool, which uses the technique of laser diffraction to measure the size of particles. It measures the intensity of light scattered as a laser beam passes through a dispersed particulate sample. This data is then analyzed to calculate the size of the particles that created the scattering pattern.
- GLP compliance:
- no
- Type of method:
- Laser scattering/diffraction
- Type of distribution:
- volumetric distribution
- Percentile:
- D10
- Mean:
- ca. 25.624 µm
- Remarks on result:
- other: After 2 minutes of ultrasonic treatment
- Key result
- Percentile:
- D50
- Mean:
- ca. 52.992 µm
- Remarks on result:
- other: After 2 minutes of ultrasonic treatment
- Percentile:
- D90
- Mean:
- ca. 101.519 µm
- Remarks on result:
- other: After 2 minutes of ultrasonic treatment
- Conclusions:
- The particle size of the test substance was determined to be MMD = 52.992 µm.
- Executive summary:
Method
The particle size distribution was analyzed using the Mastersizer 2000 tool, which uses the technique of laser diffraction to measure the size of particles. It does this by measuring the intensity of light scattered as a laser beam passes through a dispersed particulate sample. This data is then analyzed to calculate the size of the particles that created the scattering pattern.
Result
Analysis carried out after 2 minutes of ultrasonic treatment:
D10 = 25.624 µm
D50 = 52.992 µm
D90 = 101.519 µm
- Endpoint:
- particle size distribution (granulometry)
- Data waiving:
- study scientifically not necessary / other information available
- Justification for data waiving:
- the study does not need to be conducted because the substance is marketed or used in a non solid or granular form
- Percentile:
- D50
- Remarks on result:
- other: Migrated from fields under 'Mass median diameter' as D50 percentile. No source field for Standard deviation.
Referenceopen allclose all
Description of key information
The particle size of the test substance was determined to be MMD = 52.992 µm.
Additional information
The particle size of the test substance was determined using a laser light scattering method. The particle size of the test substance was determined to be 52.992 µm.
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