Qualitative 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® Qualitative Filter Paper, Grade 413

Supplier: VWR International

Suitable for filtration of aluminum phosphate, barium carbonate, lead chromate, and more.

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Standard Grade Qualitative Filter Papers

Supplier: VWR International

Qualitative Filter Paper is available in three standard grades.

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Whatman™ Grade 595 ½ Qualitative Filter Papers, Whatman products (Cytiva)

Supplier: Cytiva

A prepleated filter used for many routine analytical applications in different industries (e.g., particle separation from food extracts or filtration of solids from digested environmental samples, e.g., for ICP/AAS analysis).

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Whatman™ Grade 1574 and 1574 ½ Qualitative Filter Papers, Wet Strengthened Grades, Whatman products (Cytiva)

Supplier: Cytiva

Medium fast cellulose filter paper with high wet strength. This paper has the same chemical resistance characteristics as Grade 1573.

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Whatman™ Grade 602 h Qualitative Filter Papers, Whatman products (Cytiva)

Supplier: Cytiva

A standard grade filter esed in sample preparation, e.g., in the beverage industry for residual sugar determination, acidic spectra, refractometric analysis, and HPLC.

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Whatman™ Grade 1 Qualitative Filter Paper, Whatman products (Cytiva)

Supplier: Cytiva

Whatman Grade 1 Qualitative Filter Papers are the most widely used filter paper for routine laboratory applications, qualitative analytical separations, and clarifying liquids. They are the standard grade cellulose filter papers for medium flow rates.

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Whatman™ Grade 4 Qualitative Filter Papers, Whatman products (Cytiva)

Supplier: Cytiva

Whatman Grade 4 Qualitative Filter Papers are a standard grade, high flow rate filter paper. They are useful in qualitative analytical separations when fast flow is required and the collection of fine particles is not critical.

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Whatman™ Grade 602 h ½ Qualitative Filter Papers, Whatman products (Cytiva)

Supplier: Cytiva

A dense prepleated filter paper for collecting very small particles and removing fine precipitates.

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Whatman™ Grade 597 and 597 ¹/₂ Qualitative Filter Papers

Supplier: Cytiva

Savings in time required to quadrant-fold circles to fit conical filter funnels in repetitive or multiple analyses.

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Whatman™ Grade 802 Qualitative Filter Papers, Whatman products (Cytiva)

Supplier: Cytiva

A prepleated filter for use with a conical filter funnel, offers fast filtration and high loading capacity for analysis involving coarse particles or gelatinous precipitates.

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Whatman™ Grade 114V Qualitative Filter Papers, Fluted

Supplier: Cytiva

Whatman Grade 114V smooth filter paper from Cytiva is wet-strengthened for high mechanical stability. Grade 114V fluted filters are suitable for recovery of large particles and gelatinous precipitates.

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Whatman™ Grade 6 Qualitative Filter Papers, Whatman products (Cytiva)

Supplier: Cytiva

A standard grade filter for boiler water analysis.

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Whatman™ Grade 597 Optima Qualitative Filter Papers, Whatman products (Cytiva)

Supplier: Cytiva

Standard Whatman grade filter paper for a variety of routine applications in food and beverage industries. Well-suited for determination of fat content in food or removal of carbon dioxide and turbidity from beverages such as beer.