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Specifications: Hydrophilic Teflon
(PTFE) Membrane
| pore
size (mm) |
Bubble Point1 |
Flow
Rates2 |
Porosity3
(%) |
Thickness
(m m) |
Maximum
Temperature (°C) |
Weight
(mg/cm2) |
| Water
(ml/min/cm2) |
Air
(ml/min/cm2) |
| kg/cm2 |
PSI |
| 1.0 |
1.3 |
18.5 |
73 |
5.7 |
83 |
35 |
100 |
1.3 |
| 0.5 |
2.3 |
32.7 |
39 |
2.9 |
79 |
35 |
100 |
1.6 |
| 0.2 |
3.8 |
54.0 |
21 |
2.1 |
71 |
35 |
100 |
2.2 |
| 0.1 |
5.6 |
79.5 |
14 |
1.6 |
71 |
35 |
100 |
2.2 |
| |
DEFINITIONS:
Bubble point is the minimum pressure required to
force air through a membrane which has been prewet with water
Flow rate indicates initial flow rate at 10 PSI using
a KGS 47 filter holder
Water: using water prefiltered to
0.1 µm pore size
Air: using prefiltered nitrogen at 10 psi
- Porosity refers to the percent open area
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Trace metal content (ppm)
|
|
|
|
|
| Al |
15 |
|
K |
8 |
| Ca |
13 |
|
Mg |
1 |
| Cr |
<1 |
|
Mn |
0.1 |
| Cu |
0.5 |
|
Na |
20 |
| Fe |
<10 |
|
Ni |
0.9 |
Chemical Compatibility
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