GE Silver Membranes

Product Information

Scanning electron micrograph of surface of silver membrane filter, magnified 1500X.

99.97% pure silver High temperature resistance Tolerant of chemically or aggressive fluids Economical - can be cleaned & reused No dissolution or migration of the filter Smooth surface for particle capture and easy observation Intrinsic bacteriostatic property

Applications

• Airborne asbestos fibers by X-ray diffraction
• Dissolved Organic Carbons (DOC)
• Analysis of airborne silica in foundries, glass plants, quarries, mines, ceramic
• X-ray diffraction applications
• Coke oven emissions analysis
• Carbon and carbon black
• Fly ash - high temperature
• Cleaning liquids, coolants, dopant gases and photoresists

Products

Part # Model # Description Pore Size Filter Size Qty. Price 1145336 X02CP02550 GE Silver Membrane 0.22 micron 25 mm 50 $308.00 1145342 X02CP03725 GE Silver Membrane 0.22 micron 37 mm 25 $275.00 1145348 X02CP04725 GE Silver Membrane 0.22 micron 47 mm 25 $389.00 1145335 X04CP02550 GE Silver Membrane 0.45 micron 25 mm 50 $308.00 1145341 X04CP03725 GE Silver Membrane 0.45 micron 37 mm 25 $275.00 1145347 X04CP04725 GE Silver Membrane 0.45 micron 47 mm 25 $389.00 1145328 X08CP01300 GE Silver Membrane 0.8 micron 13 mm 100 $527.00 1145334 X08CP02550 GE Silver Membrane 0.8 micron 25 mm 50 $308.00 1145346 X08CP04725 GE Silver Membrane 0.8 micron 47 mm 25 $389.00 1145333 X12CP02550 GE Silver Membrane 1.2 micron 25 mm 50 $308.00 1145345 X12CP04725 GE Silver Membrane 1.2 micron 47 mm 25 $389.00 1145332 X30CP02550 GE Silver Membrane 3 micron 25 mm 50 $308.00 1145331 X50CP02550 GE Silver Membrane 5 micron 25 mm 50 $308.00 1145337 X50CP03725 GE Silver Membrane 5 micron 37 mm 25 $275.00 1145343 X50CP04725 GE Silver Membrane 5 micron 47 mm 25 $389.00

Product Description

GE silver membranes are composed entirely of 99.97% pure metallic silver. They combine excellent chemical resistance and high-temperature characteristics with a retention range of 0.2µm to 5µm. Although silver membranes are used in a large number and variety of applications, their unique chemical and thermal stability is especially valuable for those applications involving aggressive fluids and/or high temperatures. They are ideal collection media for analysis of crystalline silica by X-ray diffraction and for analysis of organic materials by other instrumentation techniques, such as the analysis of Polyaromatic Hydrocarbons (PAH) and Total Organic Carbons (TOC).

Most applications of silver membranes can be divided into two broad categories: clarification/polishing and analytical. In the use of the silver membrane, orientation of the membrane can be important. There is a distinct difference in surface characteristics of the silver membrane, with one side appearing shinier than the other. For scanning electron microscopy, use the shinier side. For all other filtration applications and analytical work, including X-ray diffraction, the duller of the two sides should be used.

Specifications

Retention and Flow Rates

A) Absolute retention; measured by bubble point pressure
B) Water flow rates are initial flow rates in mL/min/cm² using prefiltered water at 10 psi differential pressure
C) Air flow rates are initial flow rates in liters/min/cm² using prefiltered air at 10 psi differential pressure
D) Bubble point values are for alcohol
E) Silver membranes provide excellent filtration performance at temperatures up to 550°C (1022°F)

For Additional Information

Please call GE Osmonics' Labstore Support at (800) 444-8212, by fax (952) 988-6662 or email us for questions, pricing and availability. For international support and distributor locations, call +1-952-988-6665 or email us. Many of the standard technical questions are already answered in our Frequently Asked Questions.