A filter paper used in analytical works in laboratories with medium filtration velocity.

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.

Filters and retains coarse 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.

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.

Filters fine particulates.

Dissolves residue-free in acid solution, which is critical in applications such as Kjeldahl analysis of nitrogen in soil. Whatman Kjeldahl Analysis Weighing Paper, Grade B-2 is thin, lightweight, and low in nitrogen for accurate chemical analysis.

Used in analytical works in laboratories. Fisherbrand™ Grade 601 Cellulose General Purpose Filter Paper has medium filtration velocity.

Fisherbrand™ Grade 115 Cellulose Very Slowly Filtering Qualitative Filter Paper are made of cellulose fibers.

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.

Retains the fine precipitates encountered in chemical analysis. Whatman™ Qualitative Filter Paper - Grade 5 Circles are excellent clarifying filters for cloudy suspensions and for water and soil analysis.

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

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.

Filters particles twice as fast as Whatman Qualitative Filter Paper Grade 5. Whatman™ Qualitative Grade 6 Filters provide fine particle retention for boiler water analysis.

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.

Provides medium retention and flow rate. Whatman™ Grade 1 Qualitative Filter Paper is frequently used in clarifying liquids, soil analysis and seed testing procedures.

Cover tables, benchtops and shelves to absorb spilled/splashed liquids. Macherey-Nagel™ MN 713 Grade Filter Paper, Folded is a smooth, thick technical filter paper with medium filtration speed for use in general lab applications and to protect surfaces from a range of substances.

These aerosol sampling and particulate monitoring filters provide high flow rates and minimal sample interference. Cytiva Whatman Grade GF/A card-mounted filters are used in static sample and personal air sampler applications.

Manufactured under strictly controlled conditions. Whatman™ Cellulose Nitrate Membrane Filters have a noticeably improved flexibility and are made to tolerate abuse during handling, loading, and autoclaving without sacrificing integrity.

Very fast filtration velocity. Fisherbrand™ Grade 122 Cellulose General Purpose Filter Paper is used for all general works in laboratories.

For fast filtering of particulates.

Collects very small particles and removes fine precipitates. Whatman™ Grade 602H Qualitative Filter Papers are used in the beverage industry to determine residual sugar, acidic spectra, refractometric analysis and HPLC.

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.

Strengthened with chemically stable resin additive. Whatman™ Qualitative Filter Paper: Grade 113 Circles boast the fastest flow rate of the qualitative grades. Crepe surface promotes ultra high loading capacity.

For filtering aqueous solutions and most organic solvents

A general purpose filter paper used for all general works in the laboratory for excellent and consistent filtration.

Captures tiny particles without becoming weak. Whatman™ Glass Microfiber Filter Paper Grade 6 may also be used for determination of filterable substances and residue upon ignition or analysis of aggressive media.

Retains the fine precipitates encountered in chemical analysis. Fisherbrand™ Qualitative Filter Paper - Grade 5 Circles are excellent clarifying filters for cloudy suspensions and for water and soil analysis.

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

Laboratory centrifuge accessory