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® Laboratory Grade Filter Papers
Supplier: VWR BRAND PRIVATE LABEL USA
VWR® filter papers are high-performance cellulose-based filtration materials designed for accurate and reproducible separations in laboratory settings. Available in both qualitative and quantitative grades, these papers deliver consistent retention, flow rate, and purity across a wide range of scientific applications. Whether used in gravimetric analysis, sample cleanup, or routine laboratory workflows, VWR® filter papers provide the reliability and technical precision demanded by today's researchers.
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VWR®, Qualitative Filter Papers
Supplier: VWR Collection
These highly pure filter paper grades are produced from cellulose fibers with an alpha-cellulose content of nearly 100%, in accordance with precise quality standards. The ash content is approximately 0.06%.
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VWR®, Qualitative filter papers, grade 410
Supplier: VWR BRAND PRIVATE LABEL USA
Useful for the filtration of copper(I) oxide, lead sulphate, barium sulphate, manganese carbonate and more for analytical work. Suitable for extremely difficult filtration and for clarification of wine.
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Application specific filter papers, Fritware®, SP Bel-Art
Supplier: Bel-Art Products, a Part of SP
These HDPE sheets can be cut, sawed, formed, machined and welded to fabricate special items.
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Qualitative filter papers, wet strengthened grades, grade 91, Whatman™
Supplier: CYTIVA WHATMAN
A general purpose creped cellulose filter for less critical routine analysis. Widely used to assay sucrose in cane sugar and within pharmaceutical laboratories for routine filtration.
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Qualitative filter papers, standard grades, grade 604 ½, Whatman™
Supplier: CYTIVA WHATMAN
Grade 604½ Qualitative Filter Papers for coarse precipitates. Maintains flow rate due to the reduction in filter paper contact with funnel side and the self-supporting shape of the filter itself.
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Application specific filter papers, grade 0790 ½, Whatman™
Supplier: CYTIVA WHATMAN
Acid washed cellulose filter paper with ash content of approximately 0,01%, low magnesium, for the determination of trace elements (Mg, Mn, Co, Cu, Mo, B).
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Grade 520 a filter papers for technical use, Whatman™
Supplier: CYTIVA WHATMAN
A thin paper with great wet strength and a very high flow rate. Frequently used in technical applications such as the filtration of viscous liquids and emulsions (e.g., sweetened juices, spirits and syrups, resin solutions, oils, or plant extracts).
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Qualitative filter papers, standard grades, grade 602 eh and 602 eh ½, Whatman™
Supplier: CYTIVA WHATMAN
Grade 602EH and 602EH½ Qualitative Filter Papers for very fine precipitates.
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Grade 113V qualitative filter papers, fluted, Whatman™
Supplier: CYTIVA WHATMAN
Cytiva's Whatman Grade 113V creped filter paper, 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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Grade 602 h ½ qualitative filter papers, Whatman™
Supplier: CYTIVA WHATMAN
A dense prepleated filter paper for collecting very small particles and removing fine precipitates.
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Qualitative filter papers, wet strengthened grades, grade 1573 and 1573 ½, Whatman™
Supplier: CYTIVA WHATMAN
A fast filter paper with high wet strength. It has a very smooth surface making it easy to scrape or wash off precipitate.
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Grade 520 bII ½ filter papers for technical use, Whatman™
Supplier: CYTIVA WHATMAN
Grade 520bll ½ thick, pleated filter paper with high wet strength offering a very high flow rate.
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Grade 2 qualitative filter papers, Whatman™
Supplier: CYTIVA WHATMAN
These cellulose filters are used in qualitative analytical techniques to determine and identify materials. Prepleated qualitative filters are also available, which give improved flow rate and increased loading capacity compared to equivalent flat filters.
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Grade 2589 A filter papers for technical use, Whatman™
Supplier: CYTIVA WHATMAN
A fast to medium fast filter with high wet strength offering medium retention.
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Filter papers, grade F319-04, Whatman™
Supplier: CYTIVA WHATMAN
Filter paper, qualitative, Whatman™, Grade F319-04, 44 mm