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Inter Products Marketing Sdn Bhd
Klang, Selangor, Malaysia.
+6016-305 9138
Silver filter membrane
Silver metal membrane filters are used in a variety of filtration applications, and their ability to withstand extreme chemical and thermal stress makes them ideal laboratory filtration equipment for applications involving aggressive fluids and/or high temperatures.
Silver metal filter membranes are pure metallic silver (99.97% pure silver) and are available with particle retention ratings of 0.2 to 5.0 microns. These silver metal membrane disc filters and sheets are specified in a National Institute for Occupational Safety and Health (NIOSH) standard for the analysis of crystalline and amorphous silica, lead sulfide, boron carbide, and chrysotile asbestos. Our silver metal membranes can be used as the collection media and subsequent x-ray diffraction substrate for quantifying unknown minerals and compounds.
Applications
Silver Membranes can be used for a wide variety of industrial hygiene, NIOSH and OSHA applications.
Used for industrial hygiene in foundries, glass plants, quarries, mines, ceramic manufacturing - NIOSH Methods using 0.45 µm, 25 mm:
N6011 (Bromine and Chlorine)
N7500 (Silica, Crystalline)
N7501 (Silica, Amorphous)
OSHA ID142 (Quartz and Cristobalite in Workplace Atmospheres)
N7504 (Vanadium Oxide)
N7505 (Lead Sulfide)
N7506 (Boron Carbide)
N9000 (Asbestos, Crysotile)
Used for industrial hygiene in coal tar pitch volatiles - OSHA Methods using 0.8 µm, 47 mm and 37 mm
Technical Specifications
| Coefficient of Thermal Expansion | 18.8 x 106 per °C |
| Thickness | 50 µm (1.97 mil) |
| Sterilization | Air, Autoclave, Steam |
| Resistivity | 1.59 x 10-8 Ωm at 20 °C (68 °F) |
| Specific Heat | 0.448 cal/g at 20 °C (68 °F) |
| Pore Sizea | H2O Flow Rateb | Air Flow Ratec | Bubble Pointd | Max. Operating Temp.e |
| 0.45 µm | 40 | 0.67 | 9 | 204°C (400°F) |
| 0.80 µm | 340 | 1.4 | 7 | 204°C (400°F) |
a. Particle retention verified by bubble point pressure
b. Measured in mL/min/cm2 w/pre-filtered H2O at ΔP of 10 psid (0.7 bar); pre-wetted w/methanol
c. Initial flow rates measured in L/min/cm2 w/pre-filtered air at 10 psi (0.7 kg/cm2)
d. Measured using methanol
e. Silver membranes provide excellent filtration performance at temperatures up to 427°C (800°F)
| Catalogue No. | Description | Packing size |
| 45347-25 | Silver Membrane Filters, 0.45 Micron, 47mm | 25 |
| 45341-25 | Silver Membrane Filters, 0.45 Micron, 37mm | 25 |
| 45335-50 | Silver Membrane Filters, 0.45 Micron, 25mm | 50 |
| 45346-25 | Silver Membrane Filters, 0.8 Micron, 47mm | 25 |
| 45340-25 | Silver Membrane Filters, 0.8 Micron, 37mm | 25 |
| 45334-50 | Silver Membrane Filters, 0.8 Micron, 25mm | 50 |