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.

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VWR® Quantitative Filter Paper, Grade 494

Supplier: VWR International

Useful for very fine precipitates such as barium and lead sulfates, stannic and nickel sulfides, and calcium hydroxide.

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VWR® Quantitative Grade Filter Paper Circles

Supplier: VWR International

Quantitative filter papers are used for gravimetric analyses or filtrations where the precipitate is to be recovered.

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VWR® Quantitative Filter Paper, Grade 454

Supplier: VWR International

Use for retention of zirconium hydroxide, aluminum hydroxide, cobalt sulfide, and other coarse or gelatinous precipitates.

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VWR® Quantitative Filter Paper, Grade 474

Supplier: VWR International

Uses include filtration of aluminum phosphate, zinc ammonium phosphate, and silver chromate.

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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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Whatman™ Quantitative Filter Papers, Pyramid Folded, Whatman products (Cytiva)

Supplier: Cytiva

Easily fits into conical funnels.

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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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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, 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.