HYDROPHOBIC PTFE MEMBRANES
DESCRIPTION
 |
Recommended for venting, filtration and sterilisation of gases, samples and aggressive organic and inorganic solvents. |
- Made entirely of PTFE (polytetrafluorethylene).
- Permanently hydrophobic.
- Allowing passage of air even at low differential pressure.
- Resistant to almost all chemicals, with very strong acids, cryoliquids, alkalis, aggressive organic solvents and media.
- Pore size 0.20 µm and 5.00 µm.
- Filter diameters from 13 mm to 293 mm.
- White and plain.
TECHNICAL SPECIFICATIONS
| Material | Pore (µm) |
Thickness (1) ( µm) |
Flow rate (2) (ml/min) |
Bubble point (3) (bar) |
|---|---|---|---|---|
| PTFE | 0.20 |
65 |
0.2 |
1.0 |
0.45 |
65 |
0.3 |
0.7 |
|
1.20 |
65 |
1.6 |
0.45 |
|
5.00 |
100 |
4 |
0.1 |
(1) Acc. DIN 53105
(2) Acc. DIN 58355: average value per cm² area at Ap = 1 bar
(3) Acc. DIN 58355, for isopropanol
- Adsorption: 8 µm/cm² for gamma-globulin (pore size 0.2 µm)
- Extractables with water not detected
- Sterilization : by autoclaving (at 121ºC or 134ºC) and ethylene oxide
- Maximun temperature 134 ºC
APPLICATIONS
- Sterile venting in multi-branch system (0.2 µm PTFE membranes)
- Phase separation
- Aerosol samples
- Filtering chemically aggressive samples
- Clarifying corrosive substances, strong acids and alkalis
- Fermentation vessels (0.2 µm PTFE membranes)
- Sterile filtering tanks and containers (0.2 µm PTFE membranes)
- Automatic air quality control
- Must be pre-wetted with an organic solvent, such as ethanol, methanol or isopropanol, before filtration of aqueous samples.
ORDERING INFO
| ∅ / Pore | 0.20 µm |
0.45 µm |
1.20 µm |
5.00 µm |
|---|---|---|---|---|
| 13 mm | PT02013BL |
PT04513BL |
PT12013BL |
|
| 25 mm | PT02025BL |
PT04525BL |
PT12025BL |
PT50025BL |
| 47 mm | PT02047BL |
PT04547BL |
PT12047BL |
PT50047BL |
| 142 mm | PT020142BL* |
PT045142BL* |
PT120142BL* |
PT500142BL* |
| 293 mm | PT020293BL* |
PT045293BL* |
Presentation: 100 units / box
*Presentation: 25 units / box
Other sizes available on request
