
Strong, Chemically Resistant Membranes
for Air Monitoring and Sampling in
Aggressive Environments
- Low chemical background permits highly sensitive, interference-free determinations.
- Ensures accurate gravimetric determinations with low tare mass.
- Zefluor™ membrane, available in 0.5 μm pore size.
- 十分适合气体及/或有机溶剂的过滤。
- For air monitoring and sampling in aggressive environments.
- Supported membranes offer increased durability for hostile testing environments or acid aerosol monitoring.
- Teflo membrane offers unique PMP support ring for PM 10 and PM 2.5 dichotomous and other air sampling techniques.
- Ultimate in chemical compatibility for filtering harsh chemicals and HPLC mobile phases that destroy other membrane materials.
描述 | Zefluor™ Membrane | Teflo Membrane | Zylon™ Membrane | TF (PTFE) Membrane |
Filter Media/Support |
PTFE with PTFE support |
PTFE with PMP (polymethyl- pentene) support ring |
Unsupported PTFE |
PTFE on a polypropylene support |
Typical Thickness |
0.5 μm:178 μm (7 mils) 1 μm:165 μm (6.5 mils) 2 and 3 μm:152 μm (6 mils) |
1 μm:76 μm (3 mils) 2 μm:46 μm (1.8 mils) 3 μm:30.4 μm (1.2 mils) |
140 μm (5.5 mils) |
0.2 μm:139 μm (5.5 mils) 0.45 and 1 μm: 135 μm (5.3 mils) |
Typical Air Flow Rate L/min/cm2 at 0.7 bar (70 kPa, 10 psi) |
0.5 μm:1 1 μm:14.6 2 μm:25.3 3 μm:53 |
1 μm:17 2 μm:53 3 μm:90 |
5 μm:13 |
0.2 μm:2 0.45 μm:3 1 μm:7 |
Minimum Bubble Point - IPA bar (psi) |
不适用 | 不适用 | 不适用 |
0.2 μm:1.0 (15) 0.45 μm:0.4 (6) 1 μm:0.1 (2) |
Water Breakthrough bar (psi) |
不适用 | 不适用 | 不适用 |
0.2 μm:2.8 (40) 0.45 μm:1.1 (16) 1 μm:1.0 (15) |
Typical Aerosol Retention* |
0.5, 1, and 2 μm:99.99% 3 μm:99.98% |
1 and 2 μm:99.99% 3 μm:99.79% |
不适用 | 不适用 |
*Following ASTM D 2986-95A 0.3 μm (DOP) at 32 L/min/100 cm2 filter media.