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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 812-222-2 | CAS number: 4443-23-6
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:
- 2018-06-26 to 2018-08-02
- Reliability:
- 1 (reliable without restriction)
- 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
- Version / remarks:
- 1981
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- ISO 13320 (Particle size analysis - Laser diffraction methods)
- Version / remarks:
- 2009
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EPA OPPTS 830.7520 (Particle Size, Fiber Length, and Diameter Distribution)
- Version / remarks:
- 1996
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- Laser scattering/diffraction
- Type of particle tested:
- primary particle
- Type of distribution:
- mass based distribution
- Key result
- Percentile:
- D10
- Mean:
- 2 µm
- St. dev.:
- 0.01
- Remarks on result:
- other: Average value
- Key result
- Percentile:
- D50
- Mean:
- 7.5 µm
- St. dev.:
- 0.03
- Remarks on result:
- other: Average value
- Key result
- Percentile:
- D90
- Mean:
- 18.1 µm
- St. dev.:
- 0.03
- Remarks on result:
- other: Average value
- Conclusions:
- The test item has a median particle size D50 = 7.5 µm, which was determined by laser diffraction measurement according to OECD Test Guideline 110 (1981), ISO 13320 (2009) and CIPAC MT 187.
Reference
Table 1: Particle size distribution:
Two test series of 3 measurements each were performed with the test item.
Test No |
D10 [µm] |
D50 [µm] |
D90 [µm] |
|||
|
mean |
SD |
mean |
SD |
mean |
SD |
1 |
2.0 |
0.05 |
7.5 |
0.12 |
18.1 |
0.33 |
2 |
2.0 |
0.03 |
7.5 |
0.07 |
18.1 |
0.37 |
Average |
2.0 |
< 0.01 |
7.5 |
0.03 |
18.1 |
0.03 |
Description of key information
The test item has a median particle size D50 = 7.5 µm, which was determined by laser diffraction measurement according to OECD Test Guideline 110 (1981), ISO 13320 (2009) and CIPAC MT 187.
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.
