Whatman PFTE Membrane Filters ‒ TE Range

Description

The TE range features polypropylene support material for improved strength and handling
Temperature resistant up to 120°C
Can withstand aggressive solvents, liquids, and gases that damage other membranes

High chemical resistance and mechanical strength

One of the major applications for the PTFE membrane is the clarification of corrosives, solvents, and aggressive fluids. This includes the important requirement in HPLC analysis for sample filtration where any solid particles can cause permanent damage to the column. The 0.5 µm pore size is normally used.

Air and gas sterilization* make use of the hydrophobic characteristics of PTFE membrane filters and their ability to stop aqueous aerosols. Pore sizes of 0.2 µm and 0.5 µm are typically used. Sterile* venting of vacuum manifolds, fermentation vessels, and filtrate tanks and containers utilize PTFE 0.2 µm membranes.

Parameter	PTFE Membrane, TE Range (TE 35), 0.2 µm pore size, (50 pcs)
Air Flow Rate (Delta p equals 3 mbar) :	70 s/100 ml
Flow Rate (Delta p equals 0.9 bar) :	24 s/100 ml/12.5 cm²
Hydrophobic :	Yes
Material :	Polytetrafluoroethylene (PTFE)
Membrane Type :	TE 35
Operating temp. max. :	100°C
Pore Size :	0.2 µm
Diameter :	25 mm, 47 mm, 50 mm

Parameter	PTFE Membrane, TE Range (TE 36), 0.45 µm pore size, (50 pcs)
Air Flow Rate (Delta p equals 3 mbar) :	60 s/100 ml
Flow Rate (Delta p equals 0.9 bar) :	12 s/100 ml/12.5 cm²
Hydrophobic :	Yes
Material :	Polytetrafluoroethylene (PTFE)
Membrane Type :	TE 36
Operating temp. max. :	100°C
Pore Size :	0.45 µm
Diameter :	25 mm, 47 mm, 50 mm

Parameter	PTFE Membrane, TE Range (TE 37), 1 µm pore size, (50 pcs)
Air Flow Rate (Delta p equals 3 mbar) :	24 s/100 ml
Flow Rate (Delta p equals 0.9 bar) :	5.4 s/100 ml/12.5 cm²
Hydrophobic :	Yes
Material :	Polytetrafluoroethylene (PTFE)
Membrane Type :	TE 37
Operating temp. max. :	100°C
Pore Size :	1 µm
Diameter :	25 mm, 47 mm, 50 mm

Parameter	PTFE Membrane, TE range (TE 38), 5 µm pore size
Air Flow Rate (Delta p equals 3 mbar) :	3.5 s/100 ml
Flow Rate (Delta p equals 0.9 bar) :	2.2 s/100 ml/12.5 cm²
Hydrophobic :	Yes
Material :	Polytetrafluoroethylene (PTFE)
Membrane Type :	TE 38
Operating temp. max. :	100°C
Pore Size :	5 µm
Diameter :	37 mm, 47 mm, 50mm, 90 mm, 150 mm
Pack Size :	25 pcs – 37 mm, 47 mm, 50mm, 50 pcs – 90 mm, 150 mm