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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 611-575-8 | CAS number: 577953-88-9
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:
- 7 May to 8 May 2014
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- equivalent or similar to guideline
- Guideline:
- OECD Guideline 110 (Particle Size Distribution / Fibre Length and Diameter Distributions)
- Principles of method if other than guideline:
- Laser diffraction
- GLP compliance:
- yes
- Type of method:
- Laser scattering/diffraction
- Type of particle tested:
- primary particle
- Type of distribution:
- other: Laser diffraction
- Mass median aerodynamic diameter:
- 208.244 µm
- Geometric standard deviation:
- 0.077
- Percentile:
- D50
- Mean:
- 190.1 µm
- Remarks on result:
- other: Migrated from fields under 'Mass median diameter' as D50 percentile. No source field for Standard deviation.
- Percentile:
- D10
- Mean:
- 42.141 µm
- St. dev.:
- 1.007
- Percentile:
- D50
- Mean:
- 190.1 µm
- St. dev.:
- 2.239
- Percentile:
- D90
- Mean:
- 380.686 µm
- St. dev.:
- 0.802
- Conclusions:
- The MMAD (Mass Median Aerodynamic Diameter) = 208.244 µm
10% of material is < 42.141 µm
50% of material is < 190.100 µm
90% of material is < 380.68 µm
Reference
From the particle size distribution 2.02 % of particles have a diameter of less than or equal to 10µm (respirable fraction);
6.3% of particles have a diameter of less than or equal to 30µm (Thoracic fraction); 25%
of particles have a diameter of less than or equal to 100µm (Inhalable fraction).
Description of key information
The MMAD (Mass Median Aerodynamic Diameter) = 208.244 µm
10% of material is < 42.141 µm
50% of material is < 190.100 µm
90% of material is < 380.686 µm
Additional information
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.
