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EC number: 220-378-2 | CAS number: 2744-49-2
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:
- January 24th, 2018
- 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, “Dry Sieve test”
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- sieving
- Type of particle tested:
- primary particle
- Type of distribution:
- mass based distribution
- Specific details on test material used for the study:
- The test item was used in its initial form, without any pre-treatment.
- Percentile:
- D50
- Mean:
- 1 003 - 1 680 µm
- Remarks on result:
- other: sieving test
- Conclusions:
- D50: between 1003 and 1680 µm
- Executive summary:
The particle size distribution of the test item was determined by dry sieve test , according to the CIPAC MT 59, “Dry Sieve test” guideline.
The dry sieve test with the test item was carried out in duplicate. The sieve with 420 µm size retained ≥ 90% of the particles; the sieve with 2057 µm size, retained ≤ 10% of the particles.
The median of particle size (D50) of the test item resulted to be between 1003 and 1680 µm.
Conclusion
D50: between 1003 and 1680 µm
Reference
Determination of particle size distribution
| Replication No. | Sieve Size (µm) | Weight of Test Item (g) | Material Passed through Sieve | Residue (Rx) % | Mean of Residue (Rx) % | |
| dx, g | Percentage (%) | |||||
| Replication 1 | 2057 | 10.0057 | 9.6023 | 95.97 | 4.03 | 4.07 |
| Replication 2 | 10.0021 | 9.5921 | 95.90 | 4.10 | ||
| Replication 1 | 1680 | 10.0046 | 6.0146 | 60.12 | 39.88 | 39.74 |
| Replication 2 | 10.0014 | 6.0416 | 60.41 | 39.59 | ||
| Replication 1 | 1003 | 10.0052 | 4.0006 | 39.99 | 60.01 | 59.98 |
| Replication 2 | 10.0012 | 4.0058 | 40.05 | 59.95 | ||
| Replication 1 | 850 | 10.0018 | 1.5016 | 15.01 | 84.99 | 84.94 |
| Replication 2 | 10.0043 | 1.5123 | 15.12 | 84.88 | ||
| Replication 1 | 420 | 10.0013 | 0.9553 | 9.55 | 90.45 | 90.48 |
| Replication 2 | 10.0026 | 0.9498 | 9.50 | 90.50 | ||
Description of key information
D50: between 1003 and 1680 µm
Additional information
CIPAC MT 59 - Dry Sieve test
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