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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 202-829-5 | CAS number: 100-20-9
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
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- test procedure in accordance with generally accepted scientific standards and described in sufficient detail
- Reason / purpose for cross-reference:
- reference to same study
- Principles of method if other than guideline:
- Accurately weighed a 180 µm sieve and an empty pan. Accurately weighed 10.33 g of test substance into the sieve. Place sieve and pan on a sieve shaker and shook for 10 minutes. Re-weighed the sieve and the pan. Calculated the percentage of particles that were less than 180 µm. The particles less than 180 µm were analysed for particle size distribution using a Beckman Coulter LS 230 Particle Size Analyzer.
- GLP compliance:
- yes
- Type of method:
- other: particles analyzed using particle size analyzer
- Type of distribution:
- volumetric distribution
- No.:
- #1
- Size:
- < 180 µm
- Distribution:
- 8.2 %
- Conclusions:
- 8.2% < 180 µm
- Executive summary:
Determination of granulometry: Accurately weighed a 180 µm sieve and an empty pan. Accurately weighed 10.33 g of test substance into the sieve. Place sieve and pan on a sieve shaker and shook for 10 minutes. Re-weighed the sieve and the pan. Calculated the percentage of particles that were less than 180 µm. The particles less than 180 µm were analysed for particle size distribution using a Beckman Coulter LS 230 Particle Size Analyzer.
Granulometry: 8.2% < 180 µm
Reference
Approximately 8.2% of the particles were less than 180 µm by sieving.
Calculated Percentage of Particle Size Distribution
(for particles less than 180 µm)
Volume % |
Particle Diameter (µm) |
10 |
> 3.708 |
25 |
> 3.440 |
50 |
> 3.063 |
75 |
> 2.923 |
90 |
> 2.718 |
Description of key information
Volumetric distribution
Additional information
8.2% <180 µm
Distribution: 10% >3.708 µm, 25% >3.44 µm, 50% >3.163 µm, 75% >2.923 µm, 90% >2.718 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.
