FREE SHIPPING $500.00 OR MORE CODE FSHIP12.
WHATMAN QUALITIVE FILTER PAPER GRAGE 4: 20-25um DIAMETER 18.50
Quantity in Basket:
none Code: 004185
Grade 4: 20-25µm
Extremely fast filtering with excellent retention of coarse particles and gelatinous precipitates such as ferric hydroxide and aluminium hydroxide. Very useful as a rapid filter for routine cleanup of biological fluids or organic extracts during analysis. Used when high flow rates in air pollution monitoring are required and the collection of fine particles is not critical.