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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 231-891-6 | CAS number: 7775-19-1
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:
- 14/06/2010 to 15/06/2010
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Reason / purpose for cross-reference:
- reference to same study
- Reason / purpose for cross-reference:
- reference to same study
- Reason / purpose for cross-reference:
- reference to same study
- Reason / purpose for cross-reference:
- reference to same study
- Reason / purpose for cross-reference:
- reference to same study
- Reason / purpose for cross-reference:
- reference to same study
- Reason / purpose for cross-reference:
- reference to same study
- Reason / purpose for cross-reference:
- reference to same study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 110 (Particle Size Distribution / Fibre Length and Diameter Distributions)
- Deviations:
- not specified
- Qualifier:
- according to guideline
- Guideline:
- other: BS ISO 13320-1:1999
- Deviations:
- not specified
- Qualifier:
- according to guideline
- Guideline:
- other: CIPAC MT 187
- Deviations:
- not specified
- GLP compliance:
- yes
- Type of method:
- Laser scattering/diffraction
- Type of distribution:
- volumetric distribution
- Percentile:
- D90
- Mean:
- 657.059 µm
- St. dev.:
- 6.76
- Percentile:
- D10
- Mean:
- 193.23 µm
- St. dev.:
- 2.24
- Percentile:
- D50
- Mean:
- 376.225 µm
- St. dev.:
- 3.28
- Conclusions:
- In particle size distribution analysis 0.40 % by volume of the sample was seen to be < 10.00 μm. Coefficient of variation for d50 was less than 3 %; d10 and d90 were less than 5 %. Thus repeatability of the characteristic particles in the size distribution were within the acceptable limits as per the BS ISO 13320 -1 test standard.
- Executive summary:
The particle size distribution study was performed according to BS ISO 13320-1: 1999, CIPAC MT 187 and OECD guideline 110 under GLP compliance. Laser diffraction method was used. In particle size distribution analysis 0.40 % by volume of the sample was seen to be < 10.00 μm. Coefficient of variation for d50 was less than 3 %; d10 and d90 were less than 5 %. Thus repeatability of the characteristic particles in the size distribution were within the acceptable limits as per the BS ISO 13320 -1 test standard.
Reference
Full test results:
|
Run 1 |
Run 2 |
Run 3 |
Run 4 |
Run 5 |
*Average |
Volume weighted mean |
398.525 |
402.693 |
397.838 |
396.210 |
407.179 |
400.489 |
Median (d.50) |
375.005 |
378.849 |
373.547 |
372.584 |
381.229 |
379.225 |
Mode (μm) |
395.084 |
398.631 |
392.986 |
392.411 |
399.032 |
395.614 |
MMAD** |
500.178 |
505.306 |
498.234 |
496.95 |
508.48 |
501.806 |
10 % of material is < |
192.096 |
195.003 |
191.136 |
191.347 |
196.815 |
193.230 |
50 % of material is < |
375.005 |
378.849 |
373.547 |
372.584 |
381.229 |
376.225 |
90 % of material is < |
635.537 |
659.560 |
654.068 |
649.301 |
668.912 |
657.059 |
All results are in μm.
*Average reult is calculated from the entirety of data captured in each run and is not a simple arithmetic mean.
**Mass Mean Aerodynamic Diameter
Standard deviation results:
|
Run 1 |
Run 2 |
Run 3 |
Run 4 |
Run 5 |
Stdev |
%STDV |
d10 |
192.096 |
195.003 |
191.136 |
191.347 |
196.815 |
2.24 |
1.16 |
d50 |
375.005 |
378.849 |
373.547 |
372.584 |
381.229 |
3.28 |
0.87 |
d90 |
653.537 |
659.650 |
654.068 |
649.301 |
668.912 |
6.76 |
1.03 |
d15.78 |
0.780 |
0.730 |
0.750 |
0.780 |
0.710 |
0.03 |
3.68 |
GSD |
480.776 |
518.971 |
498.063 |
477.672 |
536.942 |
22.65 |
4.51 |
MMAD |
500.178 |
505.306 |
498.234 |
496.950 |
508.480 |
4.38 |
0.87 |
SGD = Geometric standard deviation
Coefficient of variation for d50 was less than 3 %; d10 and d90 were less than 5 %. Thus repeatability of the characteristic particles in the size distribution were within the acceptable limits as per the BS ISO 13320 -1 test standard.
Description of key information
The particle size distribution study was performed according to BS ISO 13320-1: 1999, CIPAC MT 187 and OECD guideline 110 under GLP compliance. Laser diffraction method was used. In particle size distribution analysis 0.40 % by volume of the sample was seen to be < 10.00 μm. Coefficient of variation for d50 was less than 3 %; d10 and d90 were less than 5 %. Thus repeatability of the characteristic particles in the size distribution were within the acceptable limits as per the BS ISO 13320 -1 test standard.
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.
