| Sieve fraction, mesh | Agglomerate size, μm | Whether mixture was milled | Typical pore sizes | Density, g/cm3 |
| −100 + 200 | 74 - 149 | No | 160, 140, 80, 40 and less | 10.13 |
| −200 + 400 | 37 - 74 | No | 80, 40 and less | 10.16 |
| −400 + 500 | 31 - 37 | No | - | 10.20 |
| −500 | 31 | No | 30, 20 and less | 10.25 |
| −200 | 5 and less | Yes | 5 and less | 10.53 |
| Control pellet of UO2 without Gd2O3 | 10.59 | |||