$134.45 | Tell a friend | Print Code: 031-1463 Categories FILTER PAPER | GE Healthcare Whatman™ Quantitative Filter Paper: Grade 40 Circles Supports accurate analysis in applications sensitive to very low levels of background contamination. Whatman™ Quantitative Filter Paper: Grade 40 Circles are additionally useful in gravimetric analysis where ash content might affect weight measurements of combusted samples. Stock Availability: No | Qty: Add to Wish List