Quantative and Qualitive Filter Paper
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Glass Microfiber Filters
SartoriusDepth filters with high particle loading capacity. Made of 100% borosilicate. Temperature resistant up to 500 °C. Typically placed directly on top of other membrane filters to act as a prefilter; or may be used to filter solutions directly.
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Quantitative Ashless Filter Paper
Advantec MFSAdvantec Quantitative Ashless Filter Papers are made from the highest quality alpha cotton cellulose. One critical step in the manufacturing process of these filter papers is acid washing. All grades are double acid washed in hydrochloric then hydrofluoric acid to reduce levels of SiO2, CaO, and…
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ProWeigh Filters for TSS
Environmental ExpressProWeigh® Filters are 1.5µm Binderless Glass Fiber Filters with all preparation steps done for you. All ProWeigh filters are prepared according to Standard Methods requirements. 47mm binderless glass fiber filters are weighed, washed 3 times in deionized water, dried at 105C and…
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Grade A Glass Microfiber Filters
Thomas®Depth filtration glass micro fiber GRADE A - Fine porosity, fast flow rate, with a 1.6µm size particle retention. Frequently used in the filtration of precipitated proteins and cells. Ideally suited for use as a filter for radioimmuno assay of weak beta emitters by scintillation…
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Qualitative Filter Paper Circles, Ahlstrom 950
Ahlstrom-MunksjoAhlstrom’s qualitative grades of filter paper are, by definition, recommended for use in analytical methods, which determine or identify particulate constituents of a mixture irrespective of the amount present. Qualitative filter papers are often used in routine separation work that still…
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Bibulous Paper
RaylabconHighly absorbent white fiber paper Lint and dust free Recommended for drying microscope slides and other small lab glass items
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Glass Microfiber Filters, Ahlstrom 161
Ahlstrom-MunksjoAhlstrom offers a full range of glass microfiber filters manufactured from 100% pure borosilicate glass. Because of their intrinsic properties, glass microfiber filters have wide applications in many areas of laboratory analysis, especially when fine filtration and high loading capacity is…
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Glass Microfiber Filter Media, Grade 169
Ahlstrom-MunksjoAhlstrom binder-free glass filter papers are ideal for use in water and wastewater analysis, gravimetric analysis involving ignition of the sample and filtration of hot gases and liquids. They are recommended for use in environmental applications, biochemical testing, as pre-filters and as direct…
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Grade B Glass Microfiber Filters
Thomas®Depth filtration glass micro fiber GRADE B - Fine porosity, medium to fast flow rate, with a 1.0 µm size particle retention. Ideally suited for the collection of biochemical polymers that have been precipitated by denaturation. This material is twice as thick as Grade A with a higher loading…
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Hardened Low Ash Paper, Grade 392
Ahlstrom-MunksjoSuitable for routine gravimetric analysis and typical preparation of samples for use in analysis involving instrumental techniques. Low ash grades have intermediate ash content between qualitative grades and ashless grades. Grade 392 is medium to slowly filtering and used for fast filtration…
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Qualitative Filter Papers, Ahlstrom 609
Ahlstrom-MunksjoAhlstrom’s qualitative grades of filter paper are, by definition, recommended for use in analytical methods, which determine or identify particulate constituents of a mixture irrespective of the amount present. Qualitative filter papers are often used in routine separation work that still requires…
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Grade F Glass Microfiber Filters
labForce® (powered by Thomas Scientific)Depth filtration glass micro fiber GRADE F - Fine porosity, medium flow rate, with a 0.7 µm size particle retention. Frequently used with Grade D to filter diluted aqueous solutions containing strong oxidizing, acidic, or alkaline components prior to laser spectroscopy. May also be used for TCLP…
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PTFE Depth Filters
Advantec MFSPure PTFE (Polytetrafluoroethylene) fibers are sintered to create a unique depth-type filter. These PTFE filters offer superior handling and minimal fiber slough-off compared to glass and quartz filters. Naturally hydrophobic, the media will separate aqueous from non-aqueous phases of mixtures.…
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Strong, Chemically Resistant Membranes for Air Monitoring and Sampling in Aggressive Environments Low chemical background permits highly sensitive, interference-free determinations Ensures accurate gravimetric determinations with low tare mass Zefluor™ membrane, available in…
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Depth filtration glass micro fiber 934-AH® - Fine porosity, fast flow rate, with a 1.5 µm size particle retention. This material is the standard for volatile suspended solids content and related measurements (Standard Methods 2540D and EPA Method 160.2). Also widely used in cell harvesting…
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I.W. Tremont offers a diverse product line of high quality membrane filters available in a variety of materials, diameters and pore sizes and suitable for a wide range of applications including cell retention, In Vitro Diagnostics, particle collection, clarification and sterile filtration of…
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ProWeigh Double for TSS/VSS
Environmental ExpressThe interpretations by various auditors of the requirements of prepared filters for TSS and VSS analysis often differ from one regulatory body to the next. ProWeigh® Double filters from Environmental Express strictly document ALL preparation steps outlined in Standard Methods 2540D and E for…
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Filter Paper, Qualitative Grades
Thomas®Designed for general qualitative laboratory work Fast filtering speed; 25um particle retention Low retentivity, which retains coarse or gelatinous precipitates such as aluminum hydroxide, cobalt carbonate, mercury iodide and magnesium hydroxide Creped surface; thickness approximately…
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Pleated (Fluted) Filter Paper, #509
Ahlstrom-MunksjoAhlstrom offers a full range of standard pleated grades that meet your needs from grades with rapid flow rates for filtration of viscous materials to grades with tight matrices for removal of fine precipitates. Ahlstrom’s pre-pleated grades can save valuable time and maximize the efficiency…
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Filter, Disk, 20.00µm, 90mm, 210µm thickness
GVS Filter TechnologyGVS Qualitative Filter Papers are the standard for laboratory filtration. Using the highest quality material, GVS Qualitative Filter Papers have enhanced mechanical strengths, quality level, and reliability. These filter papers are used for qualitative analysis. Qualitative filter papers are…
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Hardened Low Ash Paper, Grade 391
Ahlstrom-MunksjoLow ash grades have intermediate ash content between qualitative grades and ashless grades. Grade 391 is slowly filtering and used for fine-grained precipitates such as barium sulfate, metastannic acid, and cuprous oxide. Retention of 2-3 microns.
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Microfiber Quartz Filters, Grade MK5
Ahlstrom-MunksjoAhlstrom offers a binder-free high purity quartz microfiber filter intended for airborne particulate monitoring in high temperatures and aggressive atmospheres. Grade MK 5 has temperature resistance for applications up to 1000°F and contains a low amount of trace elements.
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XenoSep® 1664A/B Solid Phase Extraction Filters
Xenosep TechnologiesAs specified in EPA Method 1664B, Xenosep® High Performance (HP) Solid Phase Extraction (SPE) filters for EPA Method 1664A/B-HP are designed to provide high recovery and low blank values in Horizon® SPE-DEX® and SPE manifold EPA Method 1664A applications. Each SPE filter consists of…
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Thomas Grade E Glass Microfiber Filters
labForce® (powered by Thomas Scientific)Depth filtration glass micro fiber GRADE E - Fine porosity, fast flow rate, with a 1.3 µm size particle retention. This material is an economical media for suspended particle analysis in water, cell harvesting, pre-filtration and air monitoring applications. Binderless borosilicate…
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Grade 542 Pleated (Fluted) Filter Paper
Ahlstrom-MunksjoAhlstrom offers a full range of standard pleated grades that meet your needs from grades with rapid flow rates for filtration of viscous materials to grades with tight matrices for removal of fine precipitates. Ahlstrom’s pre-pleated grades can save valuable time and maximize the efficiency…
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Pleated (Fluted) Filter Paper, Grade 505
Ahlstrom-MunksjoAhlstrom manufactures high quality analytical filter papers for use in specialty end use applications. These custom designed qualitative grades are manufactured from top quality cotton linters using ultra-pure, reverse-osmosis water. Ahlstrom specialty analytical filter papers include pleated and…
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Filter, Disk, 20.00µm, 90mm, 190µm thickness
GVS Filter TechnologyGlass Fiber membranes with a binder are usually recommended for filtrations of long duration under pressure. Glass Fiber Filters Binder Free are designed for solvent filtration or gravimetric analysis to avoid binder extractables. Filters without binders are recommended for analytical and…
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Glass Microfiber without Binder 1,6um 50mm
GVS Filter TechnologyGlass Fiber membranes with a binder are usually recommended for filtrations of long duration under pressure. Glass Fiber Filters Binder Free are designed for solvent filtration or gravimetric analysis to avoid binder extractables. Filters without binders are recommended for analytical and…
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Quantitative Filter Papers, Ahlstrom 55 (Ashless)
Ahlstrom-MunksjoAhlstrom manufactures a series of extremely high purity, acid washed filter papers designed for use in analytical and gravimetric analysis. The quantitative grades are manufactured from top quality cotton linters using ultra-pure, reverse-osmosis water and are further treated with dilute acid to…
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Phase Separation Filter Paper
Ahlstrom-MunksjoAhlstrom 480 is a hydrophobic silicone-impregnated paper intended for phase separation.
