Filter Paper

Cytiva Whatman™ Quartz Air Sampling Filters, Grade QM-A, Circle

Used in many air sampling filter applications, including sampling of acidic gases, stacks, flues, and aerosols. Whatman™ Quartz Air Sampling Filters are sequentially numbered according to U.S. Environmental Protection Agency (EPA) standards and are suitable for most applications.

Cytiva Whatman™ Qualitative Filter Paper: Grade 2 Circles

Retains and absorbs more than Grade 1 filters, with a corresponding increase in filtration time. Whatman™ Qualitative Filter Paper: Grade 2 Circles are used for monitoring specific contaminants in the atmosphere and in soil testing.

Cytiva Whatman™ Quantitative Filter Paper: Grade 40 Circles

Supports accurate analysis in applications sensitive to very low levels of background contamination. Whatman™ Quantitative Filter Paper: Grade 40 Circles are additionally useful in gravimetric analysis where ash content might affect weight measurements of combusted samples.

Cytiva Whatman™ Grade 2V Folded Qualitative Filter Papers Available on GSA/VA Contract for Federal Government customers only.

Saves time required to fit circles into conical funnels. Whatman™ Grade 2V Folded Qualitative Filter Papers provide medium flow and nominal particle retention rating of 8µm at a higher filtration speed.

Cytiva Whatman™ Quantitative Filter Paper: Grade 41 Circles

Use for quantitative air pollution analysis as a paper tape for impregnation when determining gaseous compounds at high flow rates or for quantitative air pollution analysis. Whatman™ Quantitative Filter Paper: Grade 41 Circles are commonly used in preparing samples for metal analysis after nitric acid digestion.

Cytiva Whatman™ Quantitative Filter Paper: Grade 42 Circles

Filters and retains extremely small particles. Whatman™ Quantitative Filter Paper: Grade 42 Circles are suitable for processes that require ashing.

Cytiva Whatman™ Qualitative Filter Paper: Grade 1 Circles

Covers a wide range of laboratory applications and is frequently used for clarifying liquids. Whatman™ Qualitative Filter Paper: Grade 1 Circles are widely used standard grade filter papers for routine applications with medium retention and flow rates.

Fisherbrand™ Quantitative Grade Filter Paper Circles

Manufactured to reduce silicon dioxide, calcium oxide and ferric oxide levels

Cytiva Whatman™ Quantitative Filter Paper: Grade 541 Circles

Recommended when fast filtration of a gelatinous precipitate for gravimetric analysis is performed on a strongly acidic or alkali solution. Whatman™ Quantitative Filter Paper: Grade 541 Circles  are acid hardened cellulose filters, which reduces ash to an extremely low level.

Cytiva Whatman™ Qualitative Filter Paper: Grade 4 Circles

Filters and retains course particles for monitoring air pollution. Whatman™ Qualitative Filter Paper: Grade 4 Circles are used when high flow rates in air pollution monitoring are required and the collection of fine particles is not critical.

Cytiva Whatman™ Quantitative Filter Paper: Grade 50 Circles

Enables strong retention for very fine crystalline precipitates. Whatman™ Quantitative Filter Paper: Grade 50 Circles withstand shredding, wet handling, and precipitate removal by scraping.

Fisherbrand™ Qualitative Grade Plain Filter Paper Circles - P8 Grade

Ideal for clarifying and removing particles of 20μm and larger, and in applications that do not require a low-ash or ashless paper.

Fisherbrand™ Wet-Strengthened Qualitative Filter Paper Circles

Coarse cellulose fiber papers remove particles >25μm

Cytiva Whatman™ Grade 54 Quantitative Filter Paper

Supports collection of coarse and gelatinous precipitates with minimal fiber shredding, even when wet. Whatman™ Grade 54 Quantitative Filter Paper has a hard, smooth surface to sustain vacuum and suction filtration.

Cytiva Whatman™ Qualitative Filter Paper: Grade 1 Sheets

Covers a wide range of laboratory applications and is frequently used for clarifying liquids. Whatman™ Qualitative Filter Paper: Grade 1 Sheets are widely used standard grade filter paper for routine applications with medium retention and flow rates.

Cytiva Whatman™ Qualitative Filter Papers - Prepleated Grade 113V

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

Bel-Art™ SP Scienceware™ Filter Paper for Table-Top Buchner Funnels

Fitted specifically for Scienceware table-top Buchner funnels

Cytiva Whatman™ Shark Skin Filter Paper Available on GSA/VA Contract for Federal Government customers only.

High wet strength allows use under pressure

Labconco™ Fast-Freeze™ Flask Filter Paper

Fits into top of flask to prevent partial loss of product during freeze drying.

Cytiva Whatman™ Qualitative Grade Plain Circles and Sheets - Grade 3

Used for high precipitate capacity and increased wet strength. Whatman™ Qualitative Grade Plain Circles and Sheets - Grade 3 provide double the thickness of Whatman Grade 1.

Fisherbrand™ Qualitative Grade Plain Filter Paper Circles - P5 Grade

Ideal for clarifying and removing particles of 1μm and larger, and in applications that do not require a low-ash or ashless paper

Cytiva Whatman™ Quantitative Filter Paper: Grade 50 White Smear Tab Sheets

Enables strong retention for very fine crystalline precipitates. Whatman™ Quantitative Filter Paper: Grade 50 White Smear Tab Sheets withstand shredding, wet handling, and precipitate removal by scraping.

Cytiva Whatman™ Grade 44 Quantitative Filter Paper

Reduces overall ash content and the amount of time required for filtration. Whatman™ Grade 44 Quantitative Filter Paper provides faster gravimetric analysis with filter thinner material.

Cytiva Whatman™ Qualitative Filter Papers: Grade 2555½ Pleated Circles

Maintains flow rate with reduced contact between filter and funnel. Whatman™Grade 2555½ Pleated Circles are medium fast filter papers used for the filtration of the mash for the determination of the extract in malt and wort and for removing carbon dioxide from beer.

Cytiva Whatman™ Grade 114V Folded Qualitative Filter Papers Available on GSA/VA Contract for Federal Government customers only.

Supports high loading capacity due to wet-strengthened filter paper. Whatman™ Grade 114V Folded Qualitative Filter Papers offers fast filtration of course and gelatinous precipitates.

Cytiva Whatman™ Qualitative Filter Paper: Grade 597½ Pleated Circles Available on GSA/VA Contract for Federal Government customers only.

Pleated to save time and achieve optimal fit in conical filter funnels. Whatman™ Qualitative Filter Paper: Grade 597½ Pleated Circles provide extra surface area to increase total loading capacity.

Fisherbrand™ Qualitative Grade Plain Filter Paper Sheets - P5 Grade

Ideal for clarifying and removing particles of 1μm and larger, and in applications that do not require a low-ash or ashless paper

Cytiva Grade 802 Qualitative Filter Papers

Offers fast filtration and high loading capacity for analysis involving coarse particles or gelatinous precipitates. Whatman™ Grade 802 Qualitative Filter Papers are prepleated, wet-strengthened filters for use with a conical filter funnel in routine, repetitive qualitative applications.

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