Registration Dossier
Registration Dossier
Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.
The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.
Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice.
EC number: - | 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:
- February 16, 2015 - February 20, 2015
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: GLP-compliant study in accordance with ISO 13320 and CIPAC MT 187.
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 015
- Report date:
- 2015
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- other: ISO 13320:2009
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- other: CIPAC MT 187
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of distribution:
- volumetric distribution
Test material
- Details on test material:
- - Name of test material (as cited in study report): L 131
- Appearance: Faint light-green powder
- Relative density: 3.70
Constituent 1
Results and discussion
- Mass median aerodynamic diameter:
- 23.652 - 23.85 µm
- Geometric standard deviation:
- 3.655 - 3.663
Particle sizeopen allclose all
- Percentile:
- D50
- Remarks on result:
- other: Migrated from fields under 'Mass median diameter' as D50 percentile. No source field for Standard deviation.
- Percentile:
- D10
- Mean:
- 2.053 µm
- St. dev.:
- 0.003
- Remarks on result:
- other: Population standard deviation [µm]
- Percentile:
- D50
- Mean:
- 12.361 µm
- St. dev.:
- 0.039
- Remarks on result:
- other: Population standard deviation [µm]
- Percentile:
- D90
- Mean:
- 25.979 µm
- St. dev.:
- 0.227
- Remarks on result:
- other: Population standard deviation [µm]
Particle size distribution at different passages
- Size:
- < 10 µm
- Distribution:
- 40.08 %
Any other information on results incl. tables
MMAD mean: 23.777 µm (population standard deviation: 0.07 µm)
Mode mean: 16.530 µm
Coefficient of variation for d50 is less than 3% (0.3%); d10 and d90 are less than 5% (0.2 and 0.9%). Thus repeatability of the characteristic particles in the size distribution are within the acceptable limits as per the ISO 13320-1 test standard.
Applicant's summary and conclusion
- Conclusions:
- In a GLP-compliant study in accordance with ISO 13320 and CIPAC MT 187 using the laser diffraction analysis-'wet' small volume dispersion method, the particle size distribution of a sample of the substance was determined (volumetric distribution): 10% is < 2.1 µm; 40.1% is < 10 µm; 50% is < 12.4 µm and 90% is < 26 µm. The MMAD is 23.8 µm.
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
