Glass Microfiber Filter Paper - 1210-3200 - Grade 121, 32cm 2.40cm : aluminum and zirconium hydroxides)

: aluminum and zirconium hydroxides) in acid and alkali solutions

Directly comparable and substitutable for GE Whatman-GE-Cytiva 934-AH™

which is then acid-washed using IN HNO3

and cobalt sulfide

Grade 131 is recommended for the collection of suspended solids in potable water and in industrial wastes

Glass Microfiber Filter Paper - 1210-3200 - Grade 121, 32cm 2.40cm : aluminum and zirconium hydroxides)Ahlstrom 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.