Tubing, plastic

White. For the filtration of air and gases, as well as the filtration of solvents and acids.

• Good chemical resistance
• Autoclavable
• Non-sterile

Membranes of polytetrafluoroethylene (PTFE) are particularly suited for aggressive media, since they are chemically inert towards aqueous and organic solutions as well as towards concentrated acids and bases. These membranes are hydrophobic, thus the pressure for filtration of aqueous solutions has to be higher than the breakthrough pressure. PORAFIL^® TE membranes can be used at temperatures up to 145 °C

White. Very low content of extractable materials. Weight constant after 60 minutes of drying at 105 °C. Suitable for residue analysis, microscopic viewing in incident or transmitted light, chemotaxis, x-ray fluorescence, spectrometry and gravimetric analysis. Autoclavable at 121 °C. Other pore sizes and formats are available on request.

Composed of cellulose acetate (~20 %) and cellulose nitrate (~80 %).

• Very easily wetted
• For aqueous solutions
• Hydrophilic
• Can be used up to 125 °C
• Autoclavable up to 121 °C

Applications:
For microbiological analysis (sterile with grid)
Properties:
0.45 µm pore size, 100 % microbe retention of serratia
marcescens
1.2 µm pore size for microbiological control of yeasts

Application:

• Universal filter, especially in the pharmaceutical section

• Mechanically very strong
• For aqueous and organic solutions
• Hydrophilic
• Can be used up to 135°C
• Autoclavable up to 134°C

Very high wet strength and very low ability for protein binding. For filtration of aqueous, alcohol and oil-based solutions at temperatures up to 180°C.

Applications:

• Ideal venting filter for all applications
• For aggressive media and cryogenic liquids
• Separation of free water from organic solutions
• Outstanding as gas/liquid barrier
• Filtration of air and (hot) gases

• Chemically inert to aqueous and organic solutions as well as concentrated acids and bases
• Hydrophobic - for aqueous filtration the pressure must be higher than the water breakthrough pressure
• Can be used up to 145°C
• Can be sterilised by all methods except gamma radiation

With PP backing.