Whatman Grade 3

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Whatman Grade 3
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  • Whatman Grade 3 Qualitative Filter Papers

    GE Healthcare

    …to equivalent flat filters. Grade 3: 6 µm Double the thickness of Grade 1 with still finer particle retention and excellent loading capacity; more precipitate can be held without clogging. The extra thickness gives increased wet strength and makes this grade highly suitable for use in Büchner…

  • Whatman Quantitative Filter Papers, Hardened Ashless, Grade 541

    GE Healthcare

    …speed 34 s)Maximum of 0.006% ash concentrationGE’s 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…

  • Whatman Grade 3MM Chr Cellulose Chromatography Papers

    GE Healthcare

    …separations.Also widely used in protein and nucleic acid blotting.Grade 3MM Chr cellulose chromatography circles is a 0.34 mm paper for general chromatography and electrophoresis. Grade 3MM Chr Though widely used as a blotting paper, 3MM Chr is also used both in electrophoresis and for general…

  • Whatman Grade 3 Chr Cellulose Chromatography Papers

    GE Healthcare

    …in chemical separations.Also widely used in protein and nucleic acid blotting.Grade 3 Chr cellulose chromatography sheets is a 0.36 mm paper for general applications with medium/heavy solute loadings. Grade 3 Chr A medium thickness paper (0.36 mm) with a flow rate of 130 mm/30 min. For general…

  • Grade 1 Qualitative Filter Papers

    GE Healthcare

    …from polypropylene with an integral, heat bonded filter (catalog number 1600-001). This grade covers a wide range of laboratory applications and is frequently used for clarifying liquids. Traditionally the grade is used in qualitative analytical separations for precipitates such as lead sulfate,…

  • Whatman Quantitative Filter Papers, Ashless, Grade 44

    GE Healthcare

    GE’s Whatman Grade 44 quantitative paper is a thin version of Grade 42 ashless paper. The thinness reduces the overall ash content, making Grade 44 well suited for analyses relying on ash-free dry weight. Accurate ash free dry mass measurements Fine nominal particle retention rating of 3 µm …

  • Whatman Kjeldahl Analysis Weighing Paper, Grade B-2

    GE Healthcare

    …of nitrogen in soil. GE also offers weighing boats for Kjeldahl analysis. Sheet sizes Packs of 500 Grade B-2 Whatman weighing paper are available in four sheet sizes: 76.2 × 76.2 mm (3 × 3 inch) sheets 101.6 × 101.6 mm (4 × 4 inch) sheets 152.4 × 152.4 mm (6 × 6 inch) sheets 304.8 × 304.8…

  • Whatman Quantitative Filter Paper, Hardened Low Ash, Grade 50

    GE Healthcare

    …Hirsch or Büchner funnelsGE’s thinnest Whatman brand hardened filter paper, highly glazed Grade 50 supports vacuum filtration in Büchner funnels or Hirsch funnels and enables strong retention of very fine crystalline precipitates. GE offers three grades of hardened low ash filters. All three are…

  • Whatman Polycap SPF

    GE Healthcare

    …without proper prefiltration. Polycap SPF prefilters are highly suitable for biological filtration, especially serum, buffer, and enzyme filtration, because of the density graded pre-filtration layers they contain. Prefiltration with Whatman Polycap SPF can help extend the life of the final filter.

  • Whatman GD/X Syringe Filters – Prefilter, Non-Sterile

    GE Healthcare

    …business. Syringe filter with integrated prefiltration Constructed of a polypropylene housing with a prefiltration stack of Whatman GMF 150 (graded density) and GF/F glass microfiber prefilters, GD/X syringes enable exceptional loading capacity with high flow rates for difficult-to-filter…

  • Whatman Quantitative Filter Papers, Hardened Ashless, Grade 542

    GE Healthcare

    …and hydroxide collection. Along with Grade 542 cellulose 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…

  • Whatman Quantitative Filter Papers, Hardened Low Ash, Grade 54

    GE Healthcare

    …funnel applicationsGE’s Whatman Grade 54 filter paper has high wet strength and a larger nominal particle retention rating than comparable Büchner filtration papers, enabling fast vacuum filtration of coarse precipitates. GE Healthcare’s Life Sciences business offers three grades of low ash hardened…

  • Whatman Grade GF 8 Glass Microfiber Filters with Binder

    GE Healthcare

    GE’s Whatman Grade GF 8 glass microfiber filters are used for filtration of coarse particles. GF 8 offers faster filtration and a higher air flow rate compared to the similar Grade GF 9 filters. Nominal particle retention of 3 µm Air flow rate of 12 s/100 ml/1.56 cm² Inorganic binder for…

  • Whatman Quantitative Filter Papers, Hardened Ashless, Grade 540

    GE Healthcare

    GE’s Whatman Grade 540 is a 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. Acid-treated for high wet-strength Extremely low ash content (0.006% ash…

  • Whatman Quantitative Filter Papers, Hardened Low Ash, Grade 52

    GE Healthcare

    …applicationsGE’s Whatman Grade 52 is a general-purpose filter paper for quantitative analysis in Büchner funnel and other vacuum filtrations. The acid-hardened surface and low ash content enable efficient precipitate recovery. GE Healthcare’s Life Sciences business offers three grades of hardened…

  • Whatman Grade GF 9 Glass Microfiber Filters with Binder

    GE Healthcare

    Whatman Grade GF 9 glass microfiber filters from GE Healthcare’s Life Sciences business are strengthened with an inorganic binder for environmental analysis of coarse, heavy samples. Retention of coarse particles (~ 3 µm) Strengthened with inorganic binder Can withstand temperatures up to 500°C…

  • Grade 2V Qualitative Filter Papers

    GE Healthcare

    …affect any of the technical data, and the same figures may be used for the flat circles. Time-saving Whatman qualitative grades are offered in this convenient form, which gives major advantages over flat circles. Grade 2V: 8 µm Also available in flat stock form as Grade 2.

  • Ashless Grade 42 Quantitative Filter Papers

    GE Healthcare

    …finest particle 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…

  • Grade GF/C Glass Microfiber Filters

    GE Healthcare

    Grade GF/C is the standard filter in many parts of the world for the collection of suspended solids in potable water and natural and industrial wastes. Grade GF/C: 1.2 µm Combines fine particle retention with good flow rate. Fast and efficient clarification of aqueous liquids…

  • Blotting Papers, Grade GB005

    GE Healthcare

    …ensures the wicking capability and uniformity of capillary action that are important in obtaining clean and even transfers during blotting. Whatman 3MM Chr is considered the industry standard for blotting procedures. Convenient sizes available in sheets precisely cut to the most popular gel and…

  • Blotting Papers, Grade GB003

    GE Healthcare

    …ensures the wicking capability and uniformity of capillary action that are important in obtaining clean and even transfers during blotting. Whatman 3MM Chr is considered the industry standard for blotting procedures. Convenient sizes available in sheets precisely cut to the most popular gel and…

  • Grade 114V Qualitative Filter Papers

    GE Healthcare

    …does not significantly affect any of the technical data, and the same figures may be used for the flat circles. Time-saving Whatman qualitative grades are offered in this convenient form, which gives major advantages over flat circles. Also available in flat stock form as Grade 114.

  • Grade GF/F Glass Microfiber Filters, Binder Free

    GE Healthcare

    Whatman Grade GF/F filter from GE Healthcare’s Life Sciences business is manufactured from pure borosilicate glass. GF/F offers very fine particle retention and good loading capacity and flow rate. 0.7 µm nominal particle retention Served as the basis filter for EPA standard…

  • Ashless Grade 41 Quantitative Filter Papers

    GE Healthcare

    …precipitates (e.g., iron or aluminum hydroxides). 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…

  • Grade 3MM Chr Cellulose Chromatography Papers

    GE Healthcare

    Whatman 3MM Chr is considered the industry standard for blotting procedures. Convenient sizes available in sheets precisely cut to the most popular gel and transfer membrane sizes. Allows "out-of-the-box" usage and eliminates sheet-to-sheet variations. 3MM Chr Whatman

  • Grade 3MM Chr Cellulose Chromatography Papers

    GE Healthcare

    …blotting sheets 3MM Chr Whatman 3MM Chr paper is the world’s most widely used blotting paper. This acceptance and usage reflect the high quality, purity, and consistency that are relied upon by researchers doing Southern, Northern, and Western transfers. 3MM Chr paper is now…

  • Reeve Angel Grade 226 Creped Filter Paper

    GE Healthcare

    Grey, creped surface provides optical contrast for white or dark filtrates Retains coarse or gelatinous precipitates (20-25 µm) High filtration speed High wet strength 0.28 mm thick High-loading capacity filters are used extensively in sugar and pharmaceutical…

  • Ashless Grade 43 Quantitative Filter Papers

    GE Healthcare

    Intermediate in retention between 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…

  • Reeve Angel No. 202 Qualitative Grade Filter Paper

    GE Healthcare

    Moderately open structure provides medium-fast filtration of coarse particles Contains wet-strength additive Creped surface provides greater true surface area Widely used in pharmaceutical and biological applications

  • Ashless Grade 44 Quantitative Filter Papers

    GE Healthcare

    …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 available in three formats designed to meet specific needs. Grade 44: 3 µm

  • Hardened Low Ash Grade 50 Quantitative Filter Papers

    GE Healthcare

    …chemical resistance, which 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…

  • Hardened Ashless Grade 541 Quantitative Filter Papers

    GE Healthcare

    …these fillters make them suitable for a wide range of critical analytical filtration operations. Each grade offers a convenient combination of filtration speed and particle retention. Grade 541: 22 µm Fast filtration of coarse particles and gelatinous precipitates in acid/alkali…

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