Registration Dossier
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EC number: 235-406-9 | CAS number: 12220-06-3
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
- Qualifier:
- according to guideline
- Guideline:
- other: CIPAC MT 59 Sieve Analysis
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- other: CIPAC MT 170 Dry Sieve Analysis of Water Dispersible Granules
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- other: CIPAC MT 169 Tap Density of Water Dispersible Granules
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- sieving
- Type of particle tested:
- primary particle
- Type of distribution:
- mass based distribution
- Mass median aerodynamic diameter:
- > 100 - < 1 000 µm
- No.:
- #1
- Size:
- > 100 µm
- Distribution:
- 97 %
- No.:
- #1
- Size:
- > 45 µm
- Distribution:
- 99.9 %
- Conclusions:
- Particle size distribution: 100 - 1000 µm
- Executive summary:
Machine sieving test was carried out using the following test sieves 4, 2, 1 mm, 500, 250, 100, 63 and 45 µm. The analysis has been performed according to the testing procedures described in the following guidelines: CIPAC MT 59 Sieve Analysis, CIPAC MT 170 Dry Anlysis of Water Dispersable Granules and CIPAC MT 169 Tap of Water Dispersable Granules.
Conclusion
The particle size distribution of test item was found to be: 100 - 1000 µm.
Reference
DETERMINATION OF TAP DENSITY
Sample mass (W): 80.1 g
Sample volume after dropping (V): 89 ml
Tap density (D): 0.90 g/ml
SIEVE TEST
N. of sieves: 8
Sample mass (m, calculated): 144.0 g
Sample mass (weighed): 144.0 g
| Sieve | Residue mass gx (g) | Residue rx (m/m) % | Sum of residues Rx (m/m) % | |
| Size (µm) | Serial No. | |||
| <45 (receiver pan) | - | 0.00 | 0.0 | 99.9 |
| 45 | 20111588 | 0.14 | 0.1 | 99.9 |
| 63 | 20111627 | 4.04 | 2.8 | 99.8 |
| 100 | 31121141 | 39.02 | 27.1 | 97.0 |
| 250 | 20111667 | 50.99 | 35.4 | 69.9 |
| 500 | 16111554 | 40.24 | 27.9 | 34.5 |
| 1000 | 20111725 | 8.61 | 6.0 | 6.5 |
| 2000 | 24111027 | 0.74 | 0.5 | 0.6 |
| 4000 | 14111099 | 0.07 | 0.1 | 0.1 |
gx: the amount of material retained by the sieve x
rx: ratio * 100 of the amount of material retained by the sieve x and sample mass
Rx: the calculated sum of residues on all the x sieves. Therefore the residue Rx on sieve x and the residues on all coarser sieves were summed.
Description of key information
Particle size distribution: 100 - 1000 µm
Additional information
CIPAC MT 59, 170 and 169 - sieving test
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