Glass Microfiber Filter Paper - 1310-3200 - Grade 131, 32cm 27cm Sample Pads are available in

Sample Pads are available in sheets and circles

This standard grade found in many environmental applications offers slightly more retention than Grade 111 with slightly lower filtration speed and loading capacity

which is then acid-washed using IN HNO3

cell harvesting

air pollution testing

Glass Microfiber Filter Paper - 1310-3200 - Grade 131, 32cm 27cm Sample Pads are available inAhlstrom Munksj 131 1. 0 m, Medium Speed This standard grade found in many environmental applications offers slightly more retention than Grade 111 with slightly lower filtration speed and loading capacity. Grade 131 is recommended for the collection of suspended solids in potable water and in industrial wastes. In biochemical tests, Grade 131 is suited for cell harvesting, liquid scintillation counting and the analysis of carbohydrates.