Permeability
A measured liquid or gas flow for a given pressure drop.
See a complete list of Permeability Charts in our Resource Center.
Liquid Efficiency.
|
Media
Grade |
Particle
size, µm Initial Collection Efficiency |
||
|---|---|---|---|
|
90% |
99% |
99.9% |
|
0.1 |
0.15 |
0.4 |
0.8 |
|
0.2 |
0.5 |
0.9 |
1.4 |
|
0.5 |
1 |
1.7 |
2.2 |
|
1 |
1.5 |
2.2 |
3.3 |
|
2 |
4 |
5.5 |
9 |
|
5 |
5 |
8 |
13 |
|
10 |
10 |
15 |
20 |
20 |
20 |
25 |
35 |
40 |
25 |
35 |
45 |
100 |
50 |
100 |
150 |
Testing
performed per ASTM F795
Tested at 1 gpm/ft2
ISO A2 or A3 test dust suspended in water
Air Efficiency.
|
Media
Grade |
Particle
size , µm Initial Collection Efficiency |
||
|---|---|---|---|
|
90% |
99% |
99.9% |
|
High Purity |
D |
D |
D |
0.1 |
C |
C |
C |
|
0.2 |
A |
B |
0.2 |
|
0.5 |
A |
0.25 |
0.3 |
|
1 |
A |
0.35 |
0.7 |
|
2 |
0.3 |
0.6 |
2 |
|
5 |
0.8 |
2 |
5 |
|
10 |
4.5 |
8 |
13 |
20 |
8 |
12 |
20 |
40 |
12 |
25 |
45 |
|
100 |
20 |
40 |
100 |
Testing
performed per IBR E304
Tested a flux of 6 acfm/ft2
A = Initial efficiency greater than 90% for all particle sizes
B
= Initial efficiency greater than 99% for all particle sizes
C
= Initial efficiency greater than 99.9% for all particle sizes
D
= Initial efficiency greater than 99.9999999% for all particle sizes
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