| Item | Unit | Technical specification | |||
| Particle siza | mm | 1-3 | 3-5 | 4-6 | 5-8 |
| AL2O3 | % | ≥93 | ≥93 | ≥93 | ≥93 |
| SiO2 | % | ≤0.08 | ≤0.08 | ≤0.08 | ≤0.08 |
| Fe2O3 | % | ≤0.04 | ≤0.04 | ≤0.04 | ≤0.04 |
| Na2O | % | ≤0.5 | ≤0.5 | ≤0.5 | ≤0.5 |
| loss on ignition | % | ≤8.0 | ≤8.0 | ≤8.0 | ≤8.0 |
| Bulk density | g/ml | 0.68-0.75 | 0.68-0.75 | 0.68-0.75 | 0.68-0.75 |
| Surface area | m²/g | ≥300 | ≥300 | ≥300 | ≥300 |
| Pore volume | ml/g | ≥0.40 | ≥0.40 | ≥0.40 | ≥0.40 |
| Static adsorption capacity | % | ≥18 | ≥18 | ≥18 | ≥18 |
| Water absorption | % | ≥50 | ≥50 | ≥50 | ≥50 |
| Crushing strength | N/particel | ≥60 | ≥150 | ≥180 | ≥200 |