| 5μm < Particles < 15μm (Number of particles per ml) |
Range Number | |
|---|---|---|
| More than | Up to and including | |
| 80,000 | 160,000 | 24 |
| 40,000 | 80,000 | 23 |
| 20,000 | 40,000 | 22 |
| 10,000 | 20,000 | 21 |
| 5,000 | 10,000 | 20 |
| 2,500 | 5,000 | 19 |
| 1,300 | 2,500 | 18 |
| 640 | 1,300 | 17 |
| 320 | 640 | 16 |
| 160 | 320 | 15 |
| 80 | 160 | 14 |
| 40 | 80 | 13 |
| 20 | 40 | 12 |
| 10 | 20 | 11 |
| 5 | 10 | 10 |
| 2.5 | 5 | 9 |
| 1.3 | 2.5 | 8 |
| .64 | 1.3 | 7 |
| .32 | .64 | 6 |
| .16 | .32 | 5 |
| .08 | .16 | 4 |
| .04 | .08 | 3 |
| .02 | .04 | 2 |
| .01 | .02 | 1 |
