FILTER PAPER

Grade 6: 3 µmTwice as fast as Grade 5 with almost as fine particle retention. Often specified for boiler water analysis applications.Image(s) are representative of the product group and not necessarily the individual product.Circles, Grade 6, 3...

Grade 40 Ashless: 8 µmThe classic general purpose ashless filter paper with medium speed and retention. Typical applications include gravimetric analysis for numerous components in cements, clays, iron and steel products; as a primary filter for...

Grade 41 Ashless: 20 - 25 µmThe fastest ashless filter paper. Recommended for analytical procedures involving coarse particles or gelatinous precipitates (e.g., iron or aluminum hydroxides). Also used in quantitative air pollution analysis as a...

Grade 42 Ashless: 2.5 µmA world standard for critical gravimetric analysis with the finest particle retention of all Whatman cellulose filter papers. Typical analytical precipitates include barium sulfate, metastannic acid and finely precipitated...

Grade 43 Ashless: 16 µmIntermediate in retention between Grades 40 and 41, and twice as fast as Grade 40. Typical applications include foodstuffs analysis; soil analysis; particle collection in air pollution monitoring for subsequent analysis by XRF...

Grade 44 Ashless: 3 µmThin version of Grade 42 retaining very fine particles but with lower ash weight per sample and almost twice as fast as Grade 42.Image(s) are representative of the product group and not necessarily the individual product...

• These are very pure filters suitable for a wide range of critical analytical filtration procedures. Whatman quantitative filters from GE Healthcare are designed for gravimetric analysis and the preparation of samples for instrumental analysis...

• These are very pure filters suitable for a wide range of critical analytical filtration procedures. Whatman quantitative filters from GE Healthcare are designed for gravimetric analysis and the preparation of samples for instrumental analysis...

These are very pure filters suitable for a wide range of critical analytical filtration procedures. Whatman quantitative filters from GE Healthcare are designed for gravimetric analysis and the preparation of samples for instrumental analysis. They are...

Grade 540: 8 µmGeneral purpose hardened ashless filter paper with medium retention and flow rate. Extremely pure and strong with a hard surface. High chemical resistance to strong acid and alkali. Frequently used in the gravimetric analysis of...

Grade 541: 20 - 25 µmFast filtration of coarse particles and gelatinous precipitates in acid/alkali solutions during gravimetric analysis. Typical applications include fiber in animal foodstuffs, gelatin in milk and cream, chloride in cement and...

Grade 542: 2.7 µmHigh retention of fine particles under demanding conditions. Slow flow rate. Very hard and strong with excellent chemical resistance. Often used in gravimetric metal determinations.Image(s) are representative of the product group...

These extremely strong filter papers have a high wet strength due to the addition of a small quantity of chemically stable resin. Normal qualitative applications will not introduce any significant impurities into the filtrate. The resins do, however,...

These extremely strong filter papers have a high wet strength due to the addition of a small quantity of chemically stable resin. Normal qualitative applications will not introduce any significant impurities into the filtrate. The resins do, however,...

Grade 91: 10 - 25 µmSimilar thickness to Grade 114. Retains coarse or gelatinous precipitates. Used in sugar and pharmaceutical laboratories for routine filtration.Image(s) are representative of the product group and not necessarily the individual...

Whatman Grade GF/F filter from GE Healthcares Life Sciences business is manufactured from pure borosilicate glass. GF/F offers very fine particle retention and good loading capacity and flow rate. Glass microfiber filters provide reliable results in a...

• Moisture test paper for use when drying samples during moisture assessment• Diameter: 90 mm• Max. recommended temperature: 550°C• Material: Borosilicate glassImage(s) are representative of the product group and not...

Slips easily onto Buchner funnel stems and seals-off the filter flask mouth to prevent air leaks during vacuum filtration.• Center hole fits funnel stems up to 22 mm (9/10 in.) diameter• 9.5 mm (3/8 in.) thick by 76 mm (29/10 in.) OD ring is...

Fine porosity and fast flow rate, with a 1.0 µm size particle retention. Binderless borosilicate glass microfiber. DOP efficiency is 99.98%. Primarily used in suspended solids and air monitoring.Image(s) are representative of the product group...

Grade CFP1: Very widely used filter media demonstrating retention of approximately 11 µm and a medium flow rate. Used in a broad range of laboratory and environmental applications, this media is ideally suited in separating lead sulfate, calcium...

Grade CFP2: This is a more retentive and absorbent media than CFP1, with approximately 8 µm and a medium to slow flow rate. This media is ideal for general filtration and absorbent conveyance. Commonly used in plant growth trials and monitoring...

Grade CFP3:Virtually identical to CFP1, but twice as thick resulting in a significantly slower flow rate with a retention of approximately 6 µm. This media does not clog as easily as the other qualitative cellulose types, which allows for much...

Grade CFP4:The fastest flow rate demonstrated by any of the qualitative cellulose filter medias resulting in a low retention rate of approximately 20-26 µm. Very commonly used as the first media in multi-stage filtration process. Ideally suited for...

Grade CFP40: Demonstrating medium retention and flow rates, this media is widely used in many general quantitative procedures in both liquid and gas. These procedures include: standard environmental test procedures such as soil sample analysis & the...

Grade CFP41: Very fast flow rates and loose retention characteristics make this grade ideal for initial separation of gelatinous precipitates.Specifications:• Furnish/Finish: Cotton/Ashless• Retention: 19-26 µm• Flow Rate:...

Grade CFP42: This media demonstrates an extremely high retention rate for a cellulose filter media. Its uniquely high retention rate makes it ideal for any gravimetric analysis of very fine precipitates. Specifications:• Furnish/Finish:...

Grade CFP43: Positioned as an intermediate within the quantitative cellulose family, this grade demonstrates medium retention and flow rates. It is ideal for gravimetric analysis of soil samples, surface water testing procedures and used in air sample...

Grade CFP44: Very similar to CFP42 but demonstrating a slightly wider retention rate within a similar flow rate. Typically used in the analysis of samples requiring separation of very fine precipitates.Specifications:• Furnish/Finish:...

Glass microfiber filters produced from 100% borosilicate glass microfiber without the use of binders or strengthening agents. These filters offer many advantages in a wide range of analytical applications.Grade D: Coarse porosity, fast flow rate,...

Glass microfiber filters offered in this product range are produced from 100% borosilicate glass microfiber without the use of binders or strengthening agents. These filters offer many advantages in a wide range of analytical applications.Grade E:...

Whatman Ashless Grade 989 White Ribbon Quantitative Filter Paper• Diameter: 110 mm• Ideal filter paper for quantitative analysis, gravimetric analysis, chromatography, and electrophoretic work• Pore Size: 8-10µm• Pack of...

These ready-to-use, Grade 934-AH RTU Whatman Glass Microfiber Filter Papers are the time-saving version of GEs 934-AH glass microfiber filter papers, which are widely used for dissolved, suspended and volatiles solids analysis. They have been prewashed,...

Grade 2668 ChrThickness 0.9 mm. Flow rate 155 mm/10 min. For separation of relatively large molecules by electrophoresis.• Pure cellulose produced entirely from the highest quality cotton linters with no additives of any kind.• Manufactured...

Grade 470 papers for healthcare applications sheets are used for the absorption of culture media, as blotting paper, for electrophoresis and amino acid chromatography. • Soft surface• For gelatinous samplesImage(s) are representative of the...

Grade 50 sheets, white smear tab, hardened low ash. Smear Tab format for wipe testing (e.g., testing of surfaces for radionuclide contamination).Hardened low ash: 0.015% ash maximum. These filters are treated with a strong acid to remove trace metals...

Grade 6041/2 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.• Decreased overall filtration time because...

Whatman Grade F319-04, 44 mm filter paper for automatic smoking machine testing. 960/pk.Image(s) are representative of the product group and not necessarily the individual product.