Quantative and Qualitive Filter Paper
Lab filter paper carries multiple sizes, counts, grades, and formats typically available as pre-cut circles. Filter papers are also sold as sheets or rolls, which can be cut to size where needed and adjusted to your ideal size.
Options include Buchner funnel filter paper, ashless filter paper, and fiberglass filter paper all manufactured from natural cellulose, glass fiber paper, quartz fibers, and nylon.
The adaptability of filter paper means they offer compatibility with various laboratory equipment. Options available include conical funnels and other instruments that can assist with filtering solids from aqueous solutions.
Qualitative and quantitative filter papers are excellent for clarifying and purifying samples for analysis. They are graded numerically depending on pore size, indicating flow rate, retention, thickness, and burst strength.
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Quantitative cellulose filter papers are primarily used in gravimetric analysis procedures and perform separations by entrapping particulate within the random matrix of cellulose fibers within the depth of the media. This media family is also widely used in methods to prepare samples for further…
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FILTER PAPER
United Scientific SuppliesThe most widely used qualitative filter paper for routine applications. Medium porosity and flow rate. 100 circles packed in a cardboard box. Superior quality neutral filter paper. Suitable for medium filtration, very low ash content.
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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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Qualitative Papers - Low Ash - Very Slow, 3-5 µm retention, Ø55 mm, 170 µm…
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 without Binder 1,6um 37mm
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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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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Grade 1384 Filter Paper
Ahlstrom-MunksjoCharacteristics: white, crepe, cellulose with wet strength resin
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Quartz Micro fiber Disc QF1 47mm 100 pc
GVS Filter TechnologyExcellent choice for use in environments with extreme temperature up to 900°C and/or aggressive chemical exposure. Retention loading and air flow permeation similar to glass microfiber filters. Use wherever filters of the highest purity are needed.
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Qualitative Papers - Low Ash - Very Fast, 20.00 µm retention, Ø320 mm, 210 µm…
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 made…
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Filter, Disk, 2.00µm, 90mm, 160µm 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, Disk, 20.00µm, 110mm, 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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Filter, Disk, GLASS, 1.0µm, 90mm, 25/Pk
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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Filter, Disk, 20.00µm, 150mm, 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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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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Filter, Disk, 3.00µm, 90mm, 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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VENT FLTR 50MM PTFE 0.22UM 100/PK
GVS Filter TechnologyGVS Vent Filters are available with connectors 6-12mm and are individually packaged either sterile or non-sterile. These devices are available with PTFE membranes, Polypropylene housing, and 0.20µm or 0.45µm pore size.
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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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Filter, Disk, 0,70µm, 25mm, 0,40mm 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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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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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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Presep Glass Prefilters
GVS Filter TechnologyExtend the life of final filters Pore sizes from 0.5 µm to 1.0 µm With or without binders Autoclavable PreSep prefilters are biologically inert and highly resistant to oxidizing agents and weak acids. Primarily used to extend the life of a final filter, they can…
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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
SartoriusQualitative filter papers: Made of refined pulp and cotton linters with more than 95% alpha cellulose content. The ash content of these filter papers is < 0.1% and they are essentially used for qualitative analysis. Sartorius offers two categories of qualitative filter paper: those that are wet…
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Quantitative Papers - Ashless - Medium-Slow, 7.00 µm retention, Ø55 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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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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Quantitative Filter Papers, Ahlstrom 95 (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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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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Qualitative cellulose filter papers perform separation by entrapping particulate within the random matrix of cellulose fibers within the depth of the media. This media is widely used in methods requiring the determination and identification of particulate in both liquids and gas. Also, this natural…
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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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VENT FILTER 65MM PTFE 0.45 100PK
GVS Filter TechnologyGVS Vent Filters are available with connectors 6-12mm and are individually packaged either sterile or non-sterile. These devices are available with PTFE membranes, Polypropylene housing, and 0.20µm or 0.45µm pore size.