{"id":1691,"date":"2024-07-16T09:16:43","date_gmt":"2024-07-16T09:16:43","guid":{"rendered":"https:\/\/accupore.com\/?page_id=1691"},"modified":"2024-07-20T05:11:00","modified_gmt":"2024-07-20T05:11:00","slug":"silver-membranes","status":"publish","type":"page","link":"https:\/\/accupore.com\/?page_id=1691","title":{"rendered":"Silver Membranes"},"content":{"rendered":"\n

Silver Membranes<\/h2>\n\n\n
\n \n \n \n \n \n \n \n <\/colgroup>\n <\/table>\n \n \n \n<\/div>\n\n\n\n\n

Applications<\/strong><\/h2>\n\n\n\n

<\/p>\n\n\n\n

Silver Membranes can be used for a wide variety of industrial hygiene, OSHA and laboratory applications.<\/p>\n\n\n\n

Analytical<\/strong><\/p>\n\n\n\n

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.<\/p>\n\n\n\n

Scanning Electron Microscopy (EM); smooth; electrically conductive; extremely thin membrane 50 \u00b5m; easy sample preparation.<\/p>\n\n\n\n

Gas<\/strong><\/p>\n\n\n\n

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 \u00b5m, 25 mm:<\/p>\n\n\n\n

N6011 (Bromine and Chlorine)<\/p>\n\n\n\n

N7500 (Silica, Crystalline)<\/p>\n\n\n\n

N7501 (Silica, Amorphous)<\/p>\n\n\n\n

OSHA ID142 (Quartz and Cristobalite in Workplace Atmospheres)<\/p>\n\n\n\n

N7504 (Vanadium Oxide)<\/p>\n\n\n\n

N7505 (Lead Sulfide)<\/p>\n\n\n\n

N7506 (Boron Carbide)<\/p>\n\n\n\n

N9000 (Asbestos, Crysotile)<\/p>\n\n\n\n

Respirable Combustible Dust (RCD) sampling and analysis – 0.8 \u00b5m, 25 mm, mines – measurement of diesel particulate matter, evaporated hydraulic fluids, fuel oils, and compressed air lubricants by weighing and ashing.<\/p>\n\n\n\n

Dopant gases for semiconductor manufacturing.<\/p>\n\n\n\n

Steam, or air sterilization, autoclavable<\/p>\n\n\n\n

Venting, high temperatures

Liquid<\/strong><\/p>\n\n\n\n

Clarification (3.0-5.0 \u00b5m); Polishing (1.2 \u00b5m); Sterilization (0.2-0.8 \u00b5m)<\/p>\n\n\n\n

Intrinsically Bacteriostatic – Silver does not allow the growth of bacteria and other microorganisms.<\/p>\n\n\n\n

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)<\/p>\n\n\n\n

Viscous Fluid<\/strong><\/p>\n\n\n\n

Organic Carbon, inorganic, and suspended-sediment water – 0.45 \u00b5m, 47 mm, used by U.S. Geological Survey (USGS)

Lubrication oils for servomechanisms and precision instruments<\/p>\n\n\n\n

Direct-line Applications with a Sprayer<\/p>\n\n\n\n

High-purity fluids in semiconductor applications<\/p>\n\n\n\n

Other Industrial<\/strong><\/p>\n\n\n\n

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<\/p>\n\n\n\n

Electronics Industry – filter coolants, cleaning fluids, sterile air

Aircraft\/Missile Fuels; critical fluids – resists alcohols, fuels, hydrocarbons, polyaromatic hydrocarbons (PAH), oils, alkalies, ethers<\/p>\n\n\n\n

OSHA – coal tar pitch volatiles, 0.8 \u00b5m, 47 mm and 37 mm<\/p>\n\n\n\n

Cold Sterilization (beverages, beer) – absolute particle-retention due to precise pore size<\/p>\n\n\n\n

Soil and clay analysis<\/p>\n\n\n\n

Fly Ash Sampling; Energy Research and Development Agency (ERDA)<\/p>\n\n\n\n

Bacteria Sampling<\/p>\n\n\n\n

Specifications<\/strong><\/p>\n\n\n\n

General<\/p>\n\n\n\n

Coefficient of Thermal Expansion:<\/strong>\u00a018.8 x 106 per \u00b0C<\/p>\n\n\n\n

Thickness:<\/strong>\u00a050 \u00b5m (1.97 mil)<\/p>\n\n\n\n

Sterilization:<\/strong>\u00a0Air, Autoclave, Steam<\/p>\n\n\n\n

Resistivity:<\/strong>\u00a01.59 x 10-8 \u03a9m at 20 \u00b0C (68 \u00b0F)<\/p>\n\n\n\n

Specific Heat:<\/strong>\u00a00.448 cal\/g at 20 \u00b0C (68 \u00b0F)<\/p>\n\n\n\n

Pore Sizea<\/sup><\/strong><\/td>H2<\/sub>O Flow Rateb<\/sup><\/strong><\/td>Air Flow Ratec<\/sup><\/strong><\/td>Bubble Pointd<\/sup><\/strong><\/td>Max. Operating Temp.e<\/sup><\/strong><\/td><\/tr>
0.2 \u00b5m<\/strong><\/td>17<\/td>0.35<\/td>13<\/td>204\u00b0C (400\u00b0F)<\/td><\/tr>
0.45\u00a0\u00b5m<\/strong><\/td>40<\/td>0.67<\/td>9<\/td>204\u00b0C (400\u00b0F)<\/td><\/tr>
0.8 \u00b5m<\/strong><\/td>340<\/td>1.4<\/td>7<\/td>204\u00b0C (400\u00b0F)<\/td><\/tr>
1.2\u00a0\u00b5m<\/strong><\/td>460<\/td>2.0<\/td>5<\/td>204\u00b0C (400\u00b0F)<\/td><\/tr>
3\u00a0\u00b5m<\/strong><\/td>690<\/td>2.9<\/td>3<\/td>427\u00b0C (800\u00b0F)<\/td><\/tr>
5\u00a0\u00b5m<\/strong><\/td>870<\/td>5.2<\/td>2<\/td>427\u00b0C (800\u00b0F)<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Performance by Pore Size<\/strong><\/p>\n\n\n\n

a. Particle retention verified by bubble point pressure<\/p>\n\n\n\n

b. Measured in mL\/min\/cm2<\/sup>\u00a0w\/pre-filtered H2<\/sub>O at \u0394P of 10 psid (0.7 bar); pre-wetted w\/methanol<\/p>\n\n\n\n

c. Initial flow rates measured in L\/min\/cm2<\/sup>\u00a0w\/pre-filtered air at 10 psi (0.7 kg\/cm2<\/sup>)<\/p>\n\n\n\n

d. Measured using methanol<\/p>\n\n\n\n

e. Silver membranes provide excellent filtration performance at temperatures up to 427\u00b0C (800\u00b0F)<\/p>\n\n\n\n

<\/p>\n\n\n\n

<\/p>\n","protected":false},"excerpt":{"rendered":"

Silver Membranes Applications 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 […]<\/p>\n","protected":false},"author":2,"featured_media":1260,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-1691","page","type-page","status-publish","has-post-thumbnail","hentry"],"_links":{"self":[{"href":"https:\/\/accupore.com\/index.php?rest_route=\/wp\/v2\/pages\/1691","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/accupore.com\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/accupore.com\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/accupore.com\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/accupore.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1691"}],"version-history":[{"count":12,"href":"https:\/\/accupore.com\/index.php?rest_route=\/wp\/v2\/pages\/1691\/revisions"}],"predecessor-version":[{"id":1976,"href":"https:\/\/accupore.com\/index.php?rest_route=\/wp\/v2\/pages\/1691\/revisions\/1976"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/accupore.com\/index.php?rest_route=\/wp\/v2\/media\/1260"}],"wp:attachment":[{"href":"https:\/\/accupore.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1691"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}