Pall Gelman TF (PTFE) Membranes
By Pall Life Sciences
PTFE filter media on a laminated polypropylene web for durability and ease of handling. The naturally hydrophobic medium makes these filters excellent for venting applications. Other uses include clarification of nonaqueous solutions and fluid sterilization. Pall Gelman's HPLC certification assures low levels of UV-absorbing extractables.
Provided nonsterile in a choice of pore sizes and diameters. Autoclave or EtO if desired.
Maximum operating temperature in water is 100°C; in air, 149°C. Typical moisture pickup is 0% after 24 hours at 48% RH/23°C. Typical thickness is 178µm (7 mils).
| Typical flow rates, Pall Gelman TF (PTFE) Membrane Disc Filters, 0.2µm pore size (at 520mm Hg) |
| methyl alcohol: 15mL/min/cm2 |
| air: 2Lpm/cm2 |
| Min. bubble point, methyl alcohol: 0.9kg/cm2 |
| Min. H2O breakthrough: 2.8kg/cm2 |
| Typical flow rates, Pall Gelman TF (PTFE) Membrane Disc Filters, 0.45µm pore size (at 520mm Hg) |
| methyl alcohol: 35mL/min/cm2 |
| air: 3Lpm/cm2 |
| Min. bubble point, methyl alcohol: 0.5kg/cm2 |
| Min. H2O breakthrough: 1.4kg/cm2 |