Quantative and Qualitive Filter Paper
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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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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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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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Filter, Disk, 3.00µm, 125mm, 170µm 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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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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Quantitative Papers - Ashless - Medium-Slow, 7.00 µm retention, Ø320 mm, 170 µm…
GVS Filter TechnologyGVS filter papers are the standard for laboratory filtration. Suitable for Buchner funnels and filtration under pressure. Using the highest quality material, the GVS filter papers have an enhanced mechanical strengths, quality level, and reliability. GVS offers both qualitative and quantitative…
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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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Pre-Pleated (Fluted) Filter Paper
Ahlstrom-MunksjoAhlstrom-Munksjö 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-Munksjö's pre-pleated grades can save valuable time and maximize the…
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Filter Paper, Qualitative Grade
labForce® (powered by Thomas Scientific)Designed for very fine precipitates Slow filtering speed; 1 µm particle retention High retentivity, which retains very fine crystalline precipitates such as cuprous oxide, lead sulfate, barium sulfate and manganese carbonate Thickness approximately 0.20 mm, 1.5 µm pore size
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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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Filter, Disk, 1.60µm, 47mm, 0,26mm 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 Fiber 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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Sugar Testing Filter Paper, 8613
Ahlstrom-MunksjoAhlstrom offers a full range of specially designed filter paper for use in the sugar industry. Ahlstrom 8613 has a smooth black finish designed for use in applications requiring visual examination of particles. Ahlstrom 613 and 615 are particularly well suited for general laboratory filtration…
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Thomas Grade D Glass Microfiber Filters
labForce® (powered by Thomas Scientific)Depth Filtration Glass Micro Fiber GRADE D - Coarse porosity, fast flow rate, with a 2.7 µm size particle retention. Well suited for higher volume and repetitive laboratory filtering. Also ideally used as a general pre-filter to extend primary filter life. Binderless borosilicate glass…
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Quantitative Filter Papers, Ahlstrom 54 (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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Filter, Disk, 20.00µm, 125mm, 190µm thickness
GVS Filter TechnologyFrom Very Fast Filtration to Very Slow Filtration, the wide range of GVS Quantitative Papers provide the right solution for any application need. Highest retention and very slow flow Extremely difficult filtrations Analytical precipitates: barium sulphate, matastannic acid and finely precipitated…
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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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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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Original ProWeigh Filters for VSS
Environmental ExpressThese filters are washed three times with deionized water, dried at 105°C, then furnace treated at 550°C to remove any volatile components. They are then weighed to 0.0001g. Each filter is in an individual aluminum pan with the filter weight printed on a Mylar® label affixed to the pan.…
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Filter, Disk, 20.00µm, 150mm, 190µm thickness
GVS Filter TechnologyFrom Very Fast Filtration to Very Slow Filtration, the wide range of GVS Quantitative Papers provide the right solution for any application need. Highest retention and very slow flow Extremely difficult filtrations Analytical precipitates: barium sulphate, matastannic acid and finely precipitated…
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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, Disk, 20.00µm, 125mm, 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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Qualitative Filter Papers, Grade 961, Wet-Strengthened
Ahlstrom-MunksjoQualitative analysis Low ash content 0.06% Untreated Consistent performance Wet-strengthened grades available Custom cut Bulk packaging For use in analytical methods, which determine or identify particulate constituents of a mixture irrespective of the amount present.…
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Glass Fiber Filters, Water Quality Testing
Advantec MFSAdvantec Glass Fiber Depth Filters feature high-loading capacity, fast flow rates, are highly resistant to chemical attack, and biologically inert. General purpose and clarifying filtration grades. Binder-free and thermostable to 500°C. Grade GA55 is a thin filter recommended for…
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Hardened Low Ash Paper, Grade 388
Ahlstrom-MunksjoHardened Low Ash Quantitative Filter Paper, Ahlstrom 388 Suitable 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…
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Filter, Disk, 10.00µm, 150mm, 190µm 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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Filter Paper, Qualitative Grade
labForce® (powered by Thomas Scientific)Designed for general qualitative laboratory work Medium filtering speed; 6 µm particle retention Medium retentivity, which retains medium crystalline precipitates such as aluminum phosphates, barium carbonate and lead chromate Thickness approximately 0.15 mm 6 µm pore size
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Qualitative Filter Papers, Ahlstrom 642
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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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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Grade A-E Glass Microfiber Filters
labForce® (powered by Thomas Scientific)Depth filtration glass micro fiber GRADE A-E - Fine porosity and fast flow rate, with a 1.0 µm size particle retention. Binderless borosilicate glass microfiber. DOP efficiency is 99.98%. Primarily used in suspended solids and air monitoring. Particle retention: 1.00 µm …
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