Glass Microfiber Filter Paper - 1110-1100 - Grade 111, 11cm 54 Grade 74 is also used

Grade 74 is also used as a high purity filter for speedy filtering of trace elements such as silver chromate

Ahlstrom-Munksjö 95

Typical levels of trace elements in Grade 26

This is an extremely fine retention filter for critical gravimetric analysis of very fine particles such as barium and lead sulfates

and cobalt sulfide

Glass Microfiber Filter Paper - 1110-1100 - Grade 111, 11cm 54 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.