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. X100 FILTER PAPER GR. 1 32MM

Filters and retains extremely small particles. Whatman™ Quantitative Filter Paper: Grade 42 Circles are suitable for processes that require ashing. X100 FILTER PAPER GR. 42 125MM

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. X100 FILTER PAPER GR. 40 240MM

X50000 595 6MM CIRCLES MA: 11311661

For fast filtering of particulates. X100 Qualatative filter papers Fisherbrand QL 125

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. X100 GR. 41 32.0CM/100/PKFILTER

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. X100 TYPE 2 50.0CM 100/PKFILTER CI

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. X100 TYPE 1 60X60CM 100/PKFILTER S

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. X100 FOLDED FILTERS 2555 1/2185 MM

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. X100 FILTER PAPER GR. 6 110MM

Use as a gravimetric filter during analysis of metals in acidic or alkaline solutions and in the collection of hydroxides. Whatman™ Quantitative Filter Paper: Grade 540 Circles acid-treated surface prevents tearing during filtration and allows the user to scrape precipitates from the paper. X100 TYPE 540 2.4CM/100/PKFILTER C

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. X100 FILTER PAPER GR. 3 55MM

Used in analytical works in laboratories. Fisherbrand™ Grade 601 Cellulose General Purpose Filter Paper has medium filtration velocity. X100 discs of standard filter paper medium 240 mm

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. X100 GR. 113 32.0CM/100/PKFILTER

Designed for fast filtration of coarse precipitate. Whatman™ Grade 589/1 Quantitatve FIlter Paper Circles support tests such as cement fineness measurement in a standard Blaine test or determination of the ash content in foodstuffs. 
X100 ROUND FILTER 589/1 185MMBLACK

X100 Qualitative Filter Paper, Grade 226, 20cm Dia

Used in analytical works in laboratories. Fisherbrand™ Grade 601 Cellulose General Purpose Filter Paper has medium filtration velocity. FILTER 1 QL100 85MM FP=100

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. X100 FILTER PAPER GR. 54 320MM

Enables strong retention for very fine crystalline precipitates. Whatman™ Quantitative Filter Paper: Grade 50 Circles withstand shredding, wet handling, and precipitate removal by scraping. X100 GR. 50 4.25CM/100/PKFILTER

Highly absorptive grade of paper coated on one side with polyethylene. X50 PROTECTN PE LABSORB 460X570MM

High wet strength allows use under pressure X100 SHARKSKIN 240MM

Provides medium retention and flow rate. Whatman™ Grade 1 Qualitative Filter Paper is frequently used in clarifying liquids, soil analysis and seed testing procedures. TYPE 1 47CMX100M FILTERREELS

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. X100 FILTER FOLDED 114V 185MM

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. X100 FILTER PAPER GR 4 270MM

Saves time required to quadrant-fold circles to fit conical filter funnels in repetitive or multiple analyses. Fisherbrand™ Qualitative Filter Paper: Grade 113V Circles boast the fastest flow rate of the qualitative grades. Crepe surface promotes ultra high loading capacity. X100 FILTER FOLDED 113V 185MM

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. X100 TYPE 541 32.0CM/100/PKFILTER

Feature high wet strength and chemical resistance X100 GR. 50 50.0CM/100/PKFILTER

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. X100 TYPE 541 40.0CM/100/PKFILTER

For routine, noncritical laboratory filtration applications such as general chemistry, pharmacology, emulsions, petroleum testing, soaps and detergents 202 40CM 100/PK, 1/Cs, MA: 5202-400

X100 FILTER 393 DIA240MM PURPLEDOT