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Ahlstrom 542 Medium Flow Rate Pre-Pleated Filter PaperAhlstrom 542 Medium Flow Rate Pre-Pleated Filter Paper
(F1292) 		Ahlstrom's pre-pleated grades can save valuable time and maximize the efficiency of the laboratory filter system. Pleating improves the effective surface area increasing flow rate and loading capacity thus decreasing filtration time. Pleated circles are available in 12.5cm to 50cm diameters. Grade 542 has a medium flow r... $88.50
Ahlstrom 55 Fast Flow Rate Ashless Filter PaperAhlstrom 55 Fast Flow Rate Ashless Filter Paper
(F1305) 		These standard ashless grades are high purity filter papers suitable for routine quantitative gravimetric techniques and in the preparation of samples for use in analysis involving instrumental techniques. Ahlstrom 55, 15 µm - Fast Speed. This is a fast filtering grade for gravimetric analysis of coarse particles and gel... $21.93
SmallAhlstrom 74 Medium Speed Ashless Filter Paper
(F1314) 		Ahlstrom 74, 2.0mm - Medium Speed has medium flow rate and good particle retention and is the most commonly used acid-washed filter. Covers a wide range of general ashless filtration applications. It is used for gravimetric analysis of numerous components (e.g.: cements, copper, clay, bismuth, silicon, iron) found in hea... $237.52
SmallAhlstrom 75 Medium Flow Rate Ashless/Hardened Filter Paper
(F1315) 		Ahlstrom 75, 2.0 µm - Medium Speed. This grade has medium flow rate and good particle retention and is most commonly used for applications requiring high chemical resistance to strong acid and alkali. Ahlstrom 75 is often used for filtering trace elements, collecting hydroxides after precipitation by strong alkalis and i... $21.93
SmallAhlstrom 95 Fine Retention Ashless/Hardened Filter Paper
(F1325) 		Ahlstrom 95: 1.5 µm - Slow Speed. This is an extremely fine retention filter for critical gravimetric analysis and metal determination of very fine particles such as barium and lead sulfates, stannic and nickel sulfide, calcium oxalate and calcium fluoride. $20.90
Ahlstrom 222 Medium Thick Blotting PaperAhlstrom 222 Medium Thick Blotting Paper
(F1540) 		Ahlstrom 222, 0.83 mm - 220 mm /30 min. This medium thick paper offers extremely high flow and is both recommended for electrophoresis of large molecules and as a blotter to complete the blotting sandwich in gel transfer applications. Has a smooth and uniform texture which assures continuous contact of buffer from the ch... $13.85
Ahlstrom 237 Medium-Heavy Chromatography PaperAhlstrom 237 Medium-Heavy Chromatography Paper
(F1541) 		Ahlstrom 237, 0.41 mm - 150 mm /30 min. This medium thick paper is recommended for general applications with medium-heavy solute loading. Like Ahlstrom 238, this grade is ideal for use as wicks in protein or nucleic acid blotting to provide a uniform flow of buffer through the gel to the transfer membrane in a blotting s... $25.19
Ahlstrom 238 Medium Thick Chromatography PaperAhlstrom 238 Medium Thick Chromatography Paper
(F1543) 		Ahlstrom 238, 0.35 mm - 140 mm /30 min. This medium thick paper is recommended for general chromatography applications. Ideal for use as wicks in protein or nucleic acid blotting to provide a uniform flow of buffer through the gel to the transfer membrane in a blotting sandwich. This is our most widely used blotting pape... $35.92
Ahlstrom 320 Super Thick Blotting PaperAhlstrom 320 Super Thick Blotting Paper
(F1544) 		Ahlstrom 320, 2.45 mm - 240 mm /30 min. This super thick grade is one of the thickest papers on the market. Offers extremely high flow and is recommended both for electrophoresis of large molecules and as a blotter to complete the blotting sandwich in gel transfer applications. Provides a smooth and uniform texture assur... $26.43
Ahlstrom 111 Fast Speed Glass Microfiber Filter PaperAhlstrom 111 Fast Speed Glass Microfiber Filter Paper
(F1665A) 		Ahlstrom 111: 1.2µm - Fast Speed. This grade offers fine particle retention with high filtration speed and good loading capacity. Used in general laboratory filtration including atmospheric and water pollution monitoring such as intake controls, ozone-level, and water effluents. Grade 111 is also well suited for filtrati... $29.56
Ahlstrom 121 Medium Speed Glass Microfiber Filter PaperAhlstrom 121 Medium Speed Glass Microfiber Filter Paper
(F1665B) 		Grade 121 is a very thick grade that offers finer particle retention than Ahlstrom 111 with high wet-strength and loading capacity. Recommended for the clarification of liquid suspensions loaded with fine particulates. Also used in membrane pre-filtration and is also found in quantification of solids, and LSC (Liquid Sci... $41.16
Ahlstrom 131 Medium Speed Glass Microfiber Filter PaperAhlstrom 131 Medium Speed Glass Microfiber Filter Paper
(F1665C) 		Ahlstrom 131, 1.0µm - Medium Speed is the standard grade found in many environmental applications offers slightly more retention than Ahlstrom 111 with slightly lower filtration speed and loading capacity. Recommended for the collection of suspended solids in potable water and in industrial wastes. In biochemical tests, ... $43.30
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