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Whatman GMF-150 Glass MicrofibreWhatman GMF-150 Glass Microfibre
(F1550) 		Whatman has developed a new filter medium by combining two microfiber filters in one. Manufactured from 100% borosilicate glass microfibres, the filter is binder free and unique in its construction: a course layer on top of, and meshed with, a fine layer. This filtration technique allows for higher particle loading capac... $62.77
Whatman 934-AH Glass MicrofibreWhatman 934-AH Glass Microfibre
(F1560) 		Whatman 934-AH. The fine particle retention (1.5 µm) and flow rate (13.0 ml/sec) of this popular grade is superior for its high retention efficiency at high flow rates and its high loading capacity. This filter is a smooth surface, high retention borosilicate glass microfiber which withstands temperatures over 500°C. Spe... $26.87
GF/A Glass Microfiber Filters. WhatmanGF/A Glass Microfiber Filters. Whatman
(F1580) 		Whatman GF/A glass microfibre filters offer fine particle retention (1.6 µm) and high flow rate, as well as good loading capacity. Used for high efficiency general purpose laboratory filtration, including water pollution monitoring of effluents, for filtration of water, algae and bacteria cultures, foodstuff analyses, pr... $33.30
GF/B Glass Microfiber Filters. WhatmanGF/B Glass Microfiber Filters. Whatman
(F1600) 		Whatman No. GF/B is three times thicker than GF/A with higher wet strength and significantly increased loading capacity. Combines fine particle retention (1.0 µm) with good flow rate. Particularly useful where liquid clarification or solids quantification is required for heavily loaded fine particulate suspensions. Can b... $56.32
GF/C Glass Microfibre Filters. WhatmanGF/C Glass Microfibre Filters. Whatman
(F1620) 		Whatman No. GF/C combines fine particle retention (1.2 µm) with good flow rate. The standard filter in many parts of the world for the collection of suspended solids in potable water and natural and industrial wastes. Fast and efficient clarification of aqueous liquids containing low to medium levels of fine particulates... $65.35
GF/D Glass Microfiber Filters. WhatmanGF/D Glass Microfiber Filters. Whatman
(F1640) 		Whatman No. GF/D is considerably faster in flow rate and overall filtration speed than cellulose filter papers of similar particle retention (2.7 µm). The filter is thick and consequently exhibits a high loading capacity. Designed as a membrane prefilter and available in sizes to fit most holders. GF/D will provide good ... $38.48
GF/F Glass Microfiber Filters. WhatmanGF/F Glass Microfiber Filters. Whatman
(F1660) 		Whatman No. GF/F is a high efficiency filter that will retain fine particles down to 0.7µm. Unlike membrane filters with a comparable retention value, it has a very rapid flow rate and an extremely high loading capacity. Suitable for critical applications including enumeration of Salmonella and Pseudomonas Aeroginosa, cl... $102.48
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
Ahlstrom 141 Fast Speed Glass Microfiber Filter PaperAhlstrom 141 Fast Speed Glass Microfiber Filter Paper
(F1665D) 		Ahlstrom 141, 3.1µm - Fast Speed offers better filtration speed and a higher loading capacity than an analytical filter paper of similar particle retention. Particularly recommended for pre-filtration of membrane filters and is also used in combination with Ahlstrom 121 as a highly efficient protective and retentive grad... $38.22
Ahlstrom 151 Slow Speed Glass Microfiber Filter PaperAhlstrom 151 Slow Speed Glass Microfiber Filter Paper
(F1665E) 		Ahlstrom 151, 0.7µm - Slow Speed is a high performance grade designed to retain extremely fine particles down to 0.7 µm. Has retention comparable to membrane filters while providing higher flow and loading capacity. Recommended for filtering fine precipitated proteins. In the filtration of nucleic acids and difficult bio... $52.62
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