Clean Room Classification
ISO 14644-1 |
Classe 3 |
Classe 4 |
Classe 5 |
Classe 6 |
Classe 7 |
Classe 8 |
Federal Standard 209E |
1 |
10 |
100 |
1.000 |
10.000 |
100.000 |
EUCGMP |
- |
- |
A/B |
- |
C |
D |
Ricambi orari di aria |
360/540 |
300/540 |
240/480 |
150/240 |
60/90 |
5/48 |
BS 5295 cleanroom standards
maximum particles/m³ |
||||||
Class |
≥0.5 µm |
≥1 µm |
≥5 µm |
≥10 µm |
≥25 µm |
|
Class 1 |
3,000 |
0 |
0 |
0 |
||
Class 2 |
300,000 |
2,000 |
30 |
|||
Class 3 |
1,000,000 |
20,000 |
4,000 |
300 |
||
Class 4 |
200,000 |
40,000 |
4,000 |
BS 5295 Class 1 also requires that the greatest particle present in any sample does not exceed 5 μ GMP EU classification
Class |
maximum particles/m³[11] |
|||
At Rest | At Rest | In Operation | In Operation | |
0.5 µm |
5 µm |
0.5 µm |
5 µm |
|
Class A |
3,520 | 20 | 3,500 | 20 |
Class B |
3,520 | 29 | 352,000 | 2,900 |
Class C |
352,000 | 2,900 | 3,520,000 | 29,000 |
Class D |
3,520,000 | 29,000 | n/a | n/a |