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EC number: 627-023-4 | CAS number: 2441-41-0
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:
- 2012
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: Follows Guideline OECD No. 110 (1981)
- 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:
- no
- GLP compliance:
- yes
- Remarks:
- certificate in study report
- Type of method:
- sieving
- Type of distribution:
- volumetric distribution
- Percentile:
- D50
- Mean:
- > 180 - < 355 µm
- Remarks on result:
- other: 88.6% of the particles have a size between 180 and 355 µm(migrated from fields under 'Mass median diameter' as D50 percentile. No source field for Standard deviation.)
- Percentile:
- other: not available when following the OECD method
- Mean:
- > 180 - < 355 µm
- Remarks on result:
- other: Geometric standard deviation can not be calculated as only one assay is made
- No.:
- #1
- Size:
- > 710 µm
- Distribution:
- 0.6 %
- No.:
- #2
- Size:
- > 500 - <= 710 µm
- Distribution:
- 1 %
- No.:
- #3
- Size:
- > 355 - <= 500 µm
- Distribution:
- 2.4 %
- No.:
- #4
- Size:
- > 250 - <= 355 µm
- Distribution:
- 38.6 %
- No.:
- #5
- Size:
- > 180 - <= 250 µm
- Distribution:
- 50 %
- No.:
- #6
- Size:
- > 125 - <= 180 µm
- Distribution:
- 6.6 %
- No.:
- #7
- Size:
- <= 125 µm
- Distribution:
- 0.8 %
- Conclusions:
- After the preliminary test, it was shown that the majority of the particles was lower than 1 mm. So, the principal sieving was made lower than 1 mm.
After the main test, it was shown that the majority of the particles (96.0%) was lower than 355 µm and 88.6% of the particles have a size between 180 and 355 µm. - Executive summary:
In compliance with
Guideline OECD No. 110 (1981)
ISO 13320-1:1999; NFX11-507 (1989)
After the preliminary test, it was shown that the majority of the particles was lower than.So,the principal sieving was made lower than.
After the main test, it was shown that the majority of the particles (96.0%) was lower than 355 µm and 88.6% of the particles have a size between 180 and 355 µm.
Reference
Particle size distribution during the principal dry test
Test sieve |
710 µm |
500 µm |
355 µm |
250 µm |
180 µm |
125 µm |
Collecting pan |
Mass of residue (g) |
0.56 |
1.00 |
2.27 |
36.95 |
47.89 |
6.26 |
0.81 |
Percentage of residue (%) |
0.6 |
1.0 |
2.4 |
38.6 |
50.0 |
6.5 |
0.8 |
Cumulated undersized particles (%) |
99.4 |
98.4 |
96.0 |
57.4 |
7.4 |
0.8 |
0.0 |
Time of mechanical sieving (min) |
30 |
30 |
30 |
30 |
30 |
30 |
/ |
Time of manual sieving (min) |
1 |
2 |
2 |
15 |
3 |
4 |
/ |
Description of key information
In compliance with Guideline OECD No. 110 (1981) ISO 13320-1:1999; NFX11-507 (1989)
After the main test, it was shown that the majority of the particles (96.0%) was lower than 355 µm and 88.6% of the particles have a size between 180 and 355 µm.
Additional information
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