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Grade 74 is also used as a high purity filter for speedy filtering of trace elements such as silver chromate
stannic and nickel sulfide
Typical levels of trace elements in Grade 26
Grade 121 is also used in membrane pre-filtration and is also found in quantification of solids
Fast Speed
Glass Microfiber Filter Paper - 1110-0370 - Grade 111, 3.70cm 4.25cm Grade 74 is also usedAhlstrom Munksj 111 1. 2 m, Fast Speed This grade offers fine particle retention with high filtration speed and good loading capacity. Grade 111 is used in general laboratory filtration including atmospheric and water pollution monitoring such as intake controls, ozone level, and water effluents. Grade 111 is also well suited for filtration of water and protein, testing of algae, bacteria cultures and for radioimmunoassay with weak beta emitters.
