Filter Paper, Ahlstrom,
Product number: 446-200-22Ahlstrom | Ahlstrom Grade No. 642 (Smooth)
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a Brand: Ahlstrom Filtration LLC
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Medium flow rate, good retention. High capacity. High purity (100% cotton). High absorption. Used in agricultural labs, air analysis, filtration of organic and sulfide precipitations. High wet strength. Particle retention 2 µm. Equivalent to Whatman #2.
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