Table 4 Maximum limit for particle count and air sampling for in process environmental monitoring
| Â | 0.5 um | 5.0 um |
|---|---|---|
Maximum allowable particle count during in process event (particles/m3) | ||
Grade A (Inside BSC) | 3520 | 20 |
Grade B (Outside BSC) | 352,000 | 2900 |
Maximum allowable CFU/plate for air sampling | ||
Grade A (Inside BSC) |  < 1 |  |
Grade B (Outside BSC) | 10 | Â |