Silver Filter Membrane: 马来西亚的首选 Inter Products Marketing Sdn Bhd

详情

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
Sterlitech™ Silver Membranes can be used for a wide variety of industrial hygiene, OSHA and laboratory applications.

Analytical
X-ray diffraction (XRD); silver metal membranes make excellent substrates for XRD analysis - silver purity 99.97% -- smooth surface, grayish-white color; highly reflective surface; absolute surface retention; low background noise; distinct diffraction peaks.

Scanning Electron Microscopy (EM); smooth; electrically conductive; extremely thin membrane 50 µm; easy sample preparation.

Gas
Air-borne contaminants - National Institute for Occupational Safety and Health (NIOSH) - used for industrial hygiene in foundries, glass plants, quarries, mines, ceramic manufacturing - 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)

Respirable Combustible Dust (RCD) sampling and analysis - 0.8 µm, 25 mm, mines - measurement of diesel particulate matter, evaporated hydraulic fluids, fuel oils, and compressed air lubricants by weighing and ashing.

Steam, or air sterilization, autoclavable
Venting, high temperatures

Liquid

Clarification (3.0-5.0 µm); Polishing (1.2 µm); Sterilization (0.2-0.8 µm)
Intrinsically Bacteriostatic - Silver does not allow the growth of bacteria and other microorganisms.
High-Performance Liquid Chromatography (HPLC) for a clearer; steadier baseline - may rule out interference from other sources of HPLC solvents (0.2, 0.45, and 0.8 &micor;m); tolerates high temperatures; gases and aggressive liquids -- Tetrahydrofuran (THF)

Viscous Fluid

Organic Carbon, inorganic, and suspended-sediment water - 0.45 µm, 47 mm, used by U.S. Geological Survey (USGS)
Lubrication oils for servomechanisms and precision instruments
Direct-line Applications with a Sprayer
High-purity fluids in semiconductor applications

Other Industrial

Chlorine Monitoring - Pulp and Paper Industry, disinfection; removal of tin and zinc in iron; chlorinating hydrocarbons; manufacturing synthetic rubber, plastics, pesticides, refrigerants; treating water and sewage
Electronics Industry - filter coolants, cleaning fluids, sterile air
Aircraft/Missile Fuels; critical fluids - resists alcohols, fuels, hydrocarbons, polyaromatic hydrocarbons (PAH), oils, alkalies, ethers
OSHA - coal tar pitch volatiles, 0.8 µm, 47 mm and 37 mm
Cold Sterilization (beverages, beer) - absolute particle-retention due to precise pore size
Soil and clay analysis
Fly Ash Sampling; Energy Research and Development Agency (ERDA)
Bacteria Sampling

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
0.22 µm	17	0.35	13	204°C (400°F)
0.45 µm	40	0.67	9	204°C (400°F)
0.80 µm	340	1.4	7	204°C (400°F)
1.20 µm	460	2	5	204°C (400°F)
3.00 µm	690	1.9	3	427°C (800°F)
5.00 µm	870	5.2	2	427°C (800°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	Qty / box
SH50M-1	Silver Membrane Filter, 5.0 µm, 15'' X 15'' Sheet	1
45343-25	Silver Membrane Filters, 5.0 µm, 47mm	25
45337-25	Silver Membrane Filters, 5.0 µm, 37mm	25
45331-50	Silver Membrane Filters, 5.0 µm, 25mm	50
45325-100	Silver Membrane Filters, 5.0 µm, 13mm	100
SH30M-1	Silver Membrane Filter, 3 µm, 15'' X 15'' Sheet	1
45344-25	Silver Membrane Filters, 3.0 µm, 47mm	25
45338-25	Silver Membrane Filters, 3.0 µm, 37mm	25
45332-50	Silver Membrane Filters, 3.0 µm, 25mm	50
45326-100	Silver Membrane Filters, 3.0 µm, 13mm	100
SH12M-1	Silver Membrane Filter, 1.2 µm, 15'' X 15'' Sheet	1
45345-25	Silver Membrane Filters, 1.2 µm, 47mm	25
45339-25	Silver Membrane Filters, 1.2 µm, 37mm	25
45333-50	Silver Membrane Filters, 1.2 µm, 25mm	50
45327-100	Silver Membrane Filters, 1.2 µm, 13mm	100
45347-25	Silver Membrane Filters, 0.45 µm, 47mm	25
45341-25	Silver Membrane Filters, 0.45 µm, 37mm	25
45335-50	Silver Membrane Filters, 0.45 µm, 25mm	50
45329-100	Silver Membrane Filters, 0.45 µm, 13mm	100
45346-25	Silver Membrane Filters, 0.8 µm, 47mm	25
45340-25	Silver Membrane Filters, 0.8 µm, 37mm	25
45334-50	Silver Membrane Filters, 0.8 µm, 25mm	50
45328-100	Silver Membrane Filters, 0.8 µm, 13mm	100
45348-25	Silver Membrane Filters, 0.2 µm, 47mm	25
45342-25	Silver Membrane Filters, 0.2 µm, 37mm	25
45336-50	Silver Membrane Filters, 0.2 µm, 25mm	50
45330-100	Silver Membrane Filters, 0.2 µm, 13mm	100