Ahlstrom 121 Medium Speed Glass Microfiber Filter Paper-AHLSTROM 1210-0900

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 Scintillation Counting) techniques that require high loading capacity.