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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 606-278-5 | CAS number: 19257-34-2
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:
- 2016
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 110 (Particle Size Distribution / Fibre Length and Diameter Distributions) - Method B: Fibre Length and Diameter Distributions
- Deviations:
- no
- Principles of method if other than guideline:
- In consideration of the relevance of granulometry on toxicological assessment, only the size distribution of the sieved fraction < 100 µm were studied in detail.
- GLP compliance:
- no
- Type of method:
- determination of fibre length and diameter distributions
- Type of distribution:
- volumetric distribution
- Mass median aerodynamic diameter:
- 66.88 µm
- Key result
- Percentile:
- D50
- Mean:
- 66.88 µm
- Remarks on result:
- other: no further data
- No.:
- #1
- Size:
- >= 5 - <= 100 µm
- Distribution:
- 99.36 %
- Remarks on result:
- other: of the sieve fraction < 100 µm
- No.:
- #2
- Size:
- > 100 µm
- Distribution:
- 0.64 %
- Conclusions:
- The Mean-Mass Aerodynamic Diameter is 66.88 µm as determined by Scanning Electron Microscopy.
- Executive summary:
The Mean-Mass Aerodynamic Diameter is 66.88 µm as determined by Scanning Electron Microscopy.
Reference
Result: Sieve Fraction (<100µm):
- weighted sample: 0.7169 g
- weight fraction <100µm: 0.1554 g
- mass fraction <100µm: 21.68 %
The mass fraction <100µm was 21.68 %, and was investigated by scanning electron microscopy. The mean diameter (median) was 32.80 µm with 18.47µm standard deviation. The median aspect ratio (median) was 1.850 with 0.92 as standard deviation.
The median diameter (mass fraction) of the particle size is given for the fraction <100µm. The value 66.88µm was calculated for spherical and the value 57.67µm was calculated for cubical particles.
|
|||||||||||||||||||||
Description of key information
The Mean-Mass Aerodynamic Diameter is 66.88 µm as determined by Scanning Electron Microscopy.
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.
