| ISO Classification Number |
Maximum concentration limits( Particles/m3
of air) for particles equal to and larger than the considered sizes
shown below |
| |
>= 0.1µm |
>= 0.2m |
>= 0.3µm |
>= 0.5µm |
>= 1µm |
>= 5.0µm |
| ISO Class 1 |
10 |
2 |
|
|
|
|
| ISO Class 2 |
100 |
24 |
10 |
4 |
|
|
| ISO Class 3 |
1000 |
237 |
102 |
35 |
8 |
|
| ISO Class 4 |
10000 |
2370 |
1020 |
352 |
83 |
|
| ISO Class 5 |
100000 |
23700 |
10200 |
3520 |
832 |
29 |
| ISO Class 6 |
1000000 |
237000 |
102000 |
35200 |
8320 |
293 |
| ISO Class 7 |
|
|
|
352000 |
83200 |
2930 |
| ISO Class 8 |
|
|
|
3520000 |
832000 |
29300 |
| ISO Class 9 |
|
|
|
35200000 |
8320000 |
293000 |
| |
|
|
|
|
|
|
