Quantitative Filter Paper
Made of pure cellulose treated with hydrochloric and hydrofluoric acid, filter papers are used for straining with good retention and flow rates. These cellulose filters create a semi-permeable barrier perpendicular to a liquid or airflow in order to separate fine substances from liquids or air. Different grades of filter paper are available for performing various laboratory applications including routine lab work, ranging from coarse to fine filtration of particulates. Avantor offers a wide range of qualitative and quantitative filter papers with varying pore size, particle retention, flow rate and filtration times.
Whatman™ Quantitative Filter Papers, Ashless Grades (Ash 0.01%), Grade 589/2, Whatman Products (Cytiva)
Supplier: Cytiva
Whatman Grade 589/2 filters from Cytiva are used in routine quantitative analyses, including analysis of aqueous suspension in paper, flour analysis, and sand content quantification.
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LabExact® CFP540 Quantitative Ashless Hardened Cellulose Filter Paper, 7 - 8 µm
Supplier: I.W. TREMONT CO., INC.
Grade CFP540 quantitative cellulose filter media is ashless and hardened with increased wet strength.
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LabExact® CFP41 Quantitative Ashless Cellulose Filter Papers, 20 µm
Supplier: I.W. TREMONT CO., INC.
Very fast flow rates and loose retention characteristics make this grade ideal for initial separation of gelatinous precipitates.
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LabExact® CFP43 Quantitative Ashless Cellulose Filter Papers, 15 to 17 µm
Supplier: I.W. TREMONT CO., INC.
Positioned as an intermediate within the quantitative cellulose family, this grade demonstrates medium retention and flow rates.
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LabExact® CFP40 Quantitative Ashless Cellulose Filter Papers, 8 µm
Supplier: I.W. TREMONT CO., INC.
Demonstrating medium retention and flow rates, this media is widely used in many general quantitative procedures in both liquid and gas.
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SP Bel-Art Filter Paper Discs for Buchner Table-Top Funnels, Bel-Art Products, a part of SP
Supplier: Bel-Art Products, a Part of SP
These heavy bond grade filter paper discs are custom-sized to fit table-top Buchner funnels and have a thickness of 0.30 mm.
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Whatman™ Quantitative Filter Papers, Ashless Grades (ash 0.01%), Grade 589/1, Whatman products (Cytiva)
Supplier: Cytiva
With less than 0.01% ash, Cytiva's Whatman Grade 589/1 filter papers can be used for the Blaine test in the cement industry and as an ash content test filter for foodstuffs.
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LabExact® CFP44 Quantitative Ashless Cellulose Filter Papers, 3 µm
Supplier: I.W. TREMONT CO., INC.
Very similar to CFP42 but demonstrating a slightly wider retention rate within a similar flow rate.
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Whatman™ Quantitative Filter Papers, Ashless Grades (ash 0.01%), Grade 589/3, Whatman products (Cytiva)
Supplier: Cytiva
Whatman Grade 589/3 ashless filter paper from Cytiva is particularly useful in capturing very fine particulate samples such as insoluble molecules in fats or oils or supporting ash free dry mass.
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Whatman™ Quantitative Filter Papers, Ashless Grades (ash 0.007%), Grade 43, Whatman products (Cytiva)
Supplier: Cytiva
Cytiva's Whatman Grade 43 filters support inorganic analysis and other forms of instrumental analyses. The low ash content also makes Grade 43 appropriate for gravimetric analyses requiring sample combustion.
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LabExact® CFP542 Quantitative Ashless Hardened Cellulose Filter Papers, 2 to 3 µm
Supplier: I.W. TREMONT CO., INC.
Grade CFP542 quantitative cellulose filter media is ashless and hardened with increased wet strength.
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Whatman™ Quantitative Filter Papers, Hardened Ashless Grades, Grade 540, Whatman products (Cytiva)
Supplier: Cytiva
Cytiva's Whatman Grade 540 is a high-purity, acid-treated cellulose lab filter paper. Mechanically strong Grade 540 is well suited for quantitative or gravimetric analysis of strongly acidic or alkaline samples.
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Whatman™ Quantitative Filter Papers, Pyramid Folded, Whatman products (Cytiva)
Supplier: Cytiva
Easily fits into conical funnels.
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Whatman™ Quantitative Filter Papers, Hardened Low Ash Grades, Grade 52
Supplier: Cytiva
Cytiva's Whatman Grade 52 is a general-purpose filter paper for quantitative analysis in Büchner funnel and other vacuum filtrations. The acid-hardened surface and low ash content enable efficient precipitate recovery.
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Whatman™ Quantitative Filter Papers, Hardened Ashless Grades, Grade 541
Supplier: Cytiva
Cytiva's Whatman Grade 541 acid hardened cellulose filter paper features high wet-strength, high chemical resistance, and a large nominal particle retention for fast analytical filtration.
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Whatman™ Quantitative Filter Papers, Ashless Grades (ash 0.007%), Grade 41, Whatman products (Cytiva)
Supplier: Cytiva
Cytiva's Whatman Grade 41 environmental pollution papers are among the fastest filter papers in the Whatman ashless range. This gravimetric filter is well suited for quantitative analysis of soil and air.
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