| 筛孔尺寸(mm) | 31.5 | 26.5 | 19 | 16 | 13.2 | 9.5 | 4.75 | 2.36 | 1.18 | 0.6 | 0.3 | 0.15 | 0.075 |
| 合成级配 | 100.0 | 100.0 | 97.7 | 88.3 | 76.2 | 59.6 | 37.6 | 25.5 | 18.0 | 12.8 | 9.4 | 6.4 | 4.8 |
| AC-20规范级配上限 | 100.0 | 100.0 | 100.0 | 92.0 | 80.0 | 72.0 | 56.0 | 44.0 | 33.0 | 24.0 | 17.0 | 13.0 | 7.0 |
| AC-20规范级配下限 | 100.0 | 100.0 | 90.0 | 78.0 | 62.0 | 50.0 | 26.0 | 16.0 | 12.0 | 8.0 | 5.0 | 4.0 | 3.0 |
| AC-20规范级配中值 | 100.0 | 100.0 | 95.0 | 85.0 | 71.0 | 61.0 | 41.0 | 30.0 | 22.5 | 16.0 | 11.0 | 8.5 | 5.0 |