Glass Microfiber Filter Paper - 1210-3200 - Grade 121, 32cm 2.40cm which is then acid-washed using

which is then acid-washed using IN HNO3

Grade 121 is also used in membrane pre-filtration and is also found in quantification of solids

This popular grade offers finer particle retention and higher flow rate than traditional analytical filter papers

and cobalt sulfide

Glass Microfiber Filter Paper - 1210-3200 - Grade 121, 32cm 2.40cm which is then acid-washed usingAhlstrom Munksj 121 1. 0 m, Medium Speed This very thick grade offers finer particle than Grade 111 with high wet strength and loading capacity. Grade 121 is recommended for the clarification of liquid suspensions loaded with fine particulates. Grade 121 is 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.