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This grade uses the same acid-treated glass microfiber media as Grade 193
(100 circles/box)
collecting hydroxides after precipitation by strong alkalis and in the analysis of metals in acid and alkali solutions
Cellulose Nitrate/MCE Membranes
Glass Microfiber Filter Paper - 1210-1500 - Grade 121, 15cm 54 This grade uses the sameAhlstrom 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.
