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.
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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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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Whatman™ Pyramid Folded Filter Papers, Whatman products (Cytiva)
Supplier: Cytiva
Whatman cellulose filter paper grades are also available in pyramid (square) folded formats.
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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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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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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 0.007%), 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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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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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 0.007%), Grade 40
Supplier: Cytiva
Whatman Grade 40 high-purity filters from Cytiva's business are general-purpose papers for quantitative analysis. Grade 40 filters are suitable for a variety of analytical filtration applications.
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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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Quantative Filter Papers, Pleated, Ashless and Hardened, Hach®
Supplier: Hach
These filter papers are designed for use in various Hach Water Analysis Handbook Methods and other environmental reference methods. Optimized ashless hardened circles provide an abrasion-resistant smooth surface, which is ideal for gravimetric procedures utilizing Büchner funnels and high vacuum.
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Catalog #: CA21905-026
Supplier: Kimberly-Clark