Glass Microfiber Filter Paper - 1410-1100 - Grade 141, 11cm 94 Grade 222 has a smooth

Grade 222 has a smooth and uniform texture which assures continuous contract of buffer from the chamber through the gel and transfer membrane to the opposite pole or weight

and large seeds

and related EPA and ASTM protocols

Ahlstrom-Munksjö 141

Glass Microfiber Filter Paper - 1410-1100 - Grade 141, 11cm 94 Grade 222 has a smoothAhlstrom Munksj 141 3. 1 m, Fast Speed This grade offers better filtration speed and a higher loading capacity than an analytical filter paper of similar particle retention. Grade 141 is particularly recommended for pre filtration of membrane filters and is also used in combination with Grade 121 as a highly efficient protective and retentive grade density pre filter for membrane filters.