Ashless Filter Paper

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Ashless Filter Paper
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  • Whatman Quantitative Filter Papers, Ashless, Grade 41

    GE Healthcare

    …Grade 41 environmental pollution papers are among the fastest filter papers in the Whatman ashless range. This gravimetric filter is well suited for quantitative analysis of soil and air. Aside from Grade 41 environmental pollution papers, Whatman quantitative paper comes in a variety of particle…

  • Whatman Quantitative Filter Papers, Ashless, Grade 42

    GE Healthcare

    …Whatman ashless filter paper grades. Grade 42 is designed for gravimetric analysis and sample preparation for instrumental analysis. Whatman quantitative papers come in a variety of particle retentions. Also see hardened ashless grades for work with strong acids or bases. Ashless paper for…

  • Ashless Grade 41 Quantitative Filter Papers

    GE Healthcare

    … This fastest ashless filter paper is also used in quantitative air pollution analysis as a paper tape for impregnation when determining gaseous compounds at high flow rates. This filter is also available in a disposable filter funnel. This is a convenient, disposable 47 mm filter funnel with a 250…

  • Hardened Ashless Grade 541 Quantitative Filter Papers

    GE Healthcare

    ashless: 0.006% ash maximum. These filters are acid-hardened to give high wet strength and chemical resistance with extremely low ash content. The tough surface makes these filters suitable for a wide range of critical filtration procedures. These are the supreme quantitative filter papers

  • Whatman Quantitative Filter Papers, Ashless, Grade 40

    GE Healthcare

    …Whatman ashless filter paper for your gravimetric analysis needs. See our other ashless grades to find the right filter for your sample, or use our hardened ashless grades if your analysis involves strong acid/alkali suspensions. Applications for high-purity Grade 40 filters High-purity filters

  • Whatman Quantitative Filter Papers, Hardened Ashless, Grade 540

    GE Healthcare

    …high-purity, acid-treated cellulose lab filter paper. Mechanically strong Grade 540 is well suited for quantitative or gravimetric analysis of strongly acidic or alkaline samples. GE Healthcare’s Life Sciences business offers hardened ashless filter paper for a variety of precipitate…

  • Hardened Low Ash Grade 52 Quantitative Filter Papers

    GE Healthcare

    …suitable for Büchner filtrations where it is desirable to recover the precipitate from the filter surface after filtration. Other characteristics include high wet strength and chemical resistance, which are similar to those of the acid-hardened ashless filter papers. Grade 52: 7 µm

  • Hardened Ashless Grade 540 Quantitative Filter Papers

    GE Healthcare

    Supreme quantitative filter papers offering medium retention and flow rate. Hardened ashless: 0.006% ash maximum. These filters are acid-hardened to give high wet strength and chemical resistance with extremely low ash content. The tough surface makes these filters suitable for a wide range…

  • Whatman Quantitative Filter Papers, Ashless, Grade 589/2

    GE Healthcare

    …quantitative filters from GE Healthcare’s Life Sciences business are designed for gravimetric analysis. Grade 589/2 Whatman ashless filter paper can also be purchased as pre-pleated 589/2 ½ sheets. General filtration with quantitative papers Grade 589/2 ashless filter paper can be used when…

  • Ashless Grade 44 Quantitative Filter Papers

    GE Healthcare

    …and almost twice the flow rate of Grade 42. Ashless: 0.007% ash maximum for Grades 40 to 44. 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…

  • Ashless Grade 42 Quantitative Filter Papers

    GE Healthcare

    …retention of all Whatman cellulose filter papers from GE Healthcare. Ashless: 0.007% ash maximum for Grades 40 to 44. These are very pure filters suitable for a wide range of critical analytical filtration procedures. Whatman quantitative filters from GE Healthcare are designed for…

  • Whatman Quantitative Filter Papers, Ashless, Grade 44

    GE Healthcare

    …analysis can be time-consuming when filtration of fine particles is required. Because of its reduced thickness, Grade 44 ashless filter paper from GE provides faster filtration of fine particles when compared with thicker papers of similar retention rating, such as Whatman Grade 42 paper.

  • Hardened Low Ash Grade 50 Quantitative Filter Papers

    GE Healthcare

    …are similar to those of the acid-hardened ashless filter papers. Grade 50: 2.7 µm Retention of very fine crystalline precipitates. The thinnest of all Whatman filter papers. The hardened and highly glazed surface finish keeps the paper free from loose surface fibers. Highly…

  • Hardened Ashless Grade 542 Quantitative Filter Papers

    GE Healthcare

    …general purpose hardened ashless filter paper with medium retention and flow rate. Hardened ashless: 0.006% ash maximum. These filters are acid-hardened to give high wet strength and chemical resistance with extremely low ash content. The tough surface makes these filters suitable for a wide…

  • Whatman Quantitative Filter Papers, Ashless, Grade 589/3

    GE Healthcare

    Whatman Grade 589/3 ashless filter paper from GE is particularly useful in capturing very fine particulate samples such as insoluble molecules in fats or oils or supporting ash free dry mass. High purity ( ‘Blue ribbon filter’ Very fine precipitate retention (class 2d acc. to DIN 53 135) …

  • Quantitative Ashless Filter Paper

    Advantec MFS

    Advantec Quantitative Ashless Filter Papers are made from the highest quality alpha cotton cellulose. One critical step in the manufacturing process of these filter papers is acid washing. All grades are double acid washed in hydrochloric then hydrofluoric acid to reduce levels of SiO2, CaO, and…

  • Whatman Quantitative Filter Papers, Ashless, Grade 589/1

    GE Healthcare

    …of 50 s*Black ribbon filter’ for fast filtration of coarse precipitatesHigh purity ( *The time taken to filter 100 ml water (20°C) through a filter area of 10 cm² at a constant pressure of 5 cm water column Blaine test filter paper Whatman Grade 589/1 filter papers from GE Healthcare’s Life…

  • Whatman Quantitative Filter Papers, Hardened Ashless, Grade 542

    GE Healthcare

    filter paper, the Whatman range of hardened quantitative papers from GE Healthcare’s Life Sciences business includes fast Grade 541 and general-purpose Grade 540 filters. All three grades are designed for use in quantitative analysis with strong acid/alkali solutions. Slow flow rate filters for…

  • Hardened Low Ash Grade 54 Quantitative Filter Papers

    GE Healthcare

    …for Büchner filtrations where it is desirable to recover the precipitate from the filter surface after filtration. Other characteristics include high wet strength and chemical resistance, which are similar to those of the acid-hardened ashless filter papers. Grade 54: 22 µm

  • Ashless Filter Aids

    GE Healthcare

    Ashless clippings Ashless clippings Whatman ashless filter aids enhance filtration speed by coagulating precipitates or suspensions to form a thick retentive “prefilter” layer on top of normal filter paper. Easily dispersible, the powder is of a purity similar to that of Whatman ashless

  • Whatman Quantitative Filter Papers, Hardened Ashless, Grade 541

    GE Healthcare

    …Whatman Grade 541 acid hardened cellulose filter paper features high wet-strength, high chemical resistance, and a large nominal particle retention for fast analytical filtration. Along with fast Grade 541 filter paper, the hardened, ashless range from GE Healthcare’s Life Sciences business…

  • Quantitative Filter Papers, Ahlstrom 95 (Ashless)

    Ahlstrom

    … Bulk packaging Hardened Ashless Grades (Ash 0.006%) These specially treated hardened ashless grades are available for critical quantitative analytical techniques requiring increased wet-strength and handling capacity. These high purity filter papers have a tough, smooth surface free…

  • Ashless Grade 43 Quantitative Filter Papers

    GE Healthcare

    …Grades 40 and 41, and twice as fast as Grade 40. Ashless: 0.007% ash maximum for Grades 40 to 44. 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…

  • Whatman Quantitative Filter Papers, Ashless, Grade 43

    GE Healthcare

    …that of Grades 40 and 41GE’s Whatman Grade 43 filters support inorganic analysis and other forms of instrumental analyses. The low ash content also makes Grade 43 appropriate for gravimetric analyses requiring sample combustion. GE offers other ashless grades to ensure that you have the appropriate…

  • Quantitative Cellulose Filter Papers

    Thomas®

    …This media family is also widely used in methods to prepare samples for further testing using many types of instrumentation. These ashless filter papers are manufactured from refined pulp and linters. They are acid washed and have an extremely low ash content of <0.01%. CFP40:…

  • Quantitative Filter Papers, Ahlstrom 75 (Ashless)

    Ahlstrom

    … Bulk packaging Hardened Ashless Grades (Ash 0.006%) These specially treated hardened ashless grades are available for critical quantitative analytical techniques requiring increased wet-strength and handling capacity. These high purity filter papers have a tough, smooth surface free…

  • Quantitative Filter Papers, Ahlstrom 74 (Ashless)

    Ahlstrom

    …purity from filter to filter. Quantitative analysis Low ash content 0.007% (Acid-wash treated) High wet-strength Consistent performance Custom cut Bulk packaging Ashless Grades (Ash 0.007%) These standard ashless grades are high purity filter papers suitable for…

  • Quantitative Filter Papers, Ahlstrom 94 (Ashless)

    Ahlstrom

    …purity from filter to filter. Quantitative analysis Low ash content 0.007% (Acid-wash treated) High wet-strength Consistent performance Custom cut Bulk packaging Ashless Grades (Ash 0.007%) These standard ashless grades are high purity filter papers suitable for…

  • Hardened Low Ash Paper, Grade 392

    Ahlstrom

    …analysis involving instrumental techniques. Low ash grades have intermediate ash content between qualitative grades and ashless grades. Grade 392 is medium to slowly filtering and used for fast filtration of fine precipitates such as calcium oxalate, magnesium ammonium phosphate, and coarser…

  • Quantitative filter paper

    Sartorius

    Quantitative filter papers: Ashless quantitative filter papers are made of refined pulp and cotton linters with over 95% alpha-cellulose content. These filter papers are guaranteed to be free of any residual acids and have an ash content of

  • Quantitative Filter Papers, Ahlstrom 54 (Ashless)

    Ahlstrom

    … Consistent performance Hardened grades available Custom cut Bulk packaging Ashless Grades (Ash 0.007%) These standard ashless grades are high purity filter papers suitable for routine quantitative gravimetric techniques and in the preparation of samples for use…

  • Hardened Low Ash Paper, Grade 388

    Ahlstrom

    Filter Paper, Ahlstrom 388 Suitable for routine gravimetric analysis and typical preparation of samples for use in analysis involving instrumental techniques. Low ash grades have intermediate ash content between qualitative grades and ashless grades. Grade 388 is fast filtering and used…

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