Whatman Grade No. 40 Quantitative Filter Paper Ashless Whatman

Whatman Grade No. 40 Quantitative Filter Paper Ashless Whatman. 40 Ashless Quantitative Filter Paper 1440-240 is a relatively short-fiber paper that is strongly oriented and yields a fairly neutral odor. Grading of this paper from 40 to 100 indicates what ash content is expected from different distillation procedures. Whatman No. 40 Ashless Grade Paper was specifically designed for the ashless distillation process. The paper burns down to one-third of its original volume consumes very little pap