Lab Supplies & Equipment › Whatman › Burns

Whatman Grade No. 40 Quantitative Filter Paper Ashless Whatman 1440-240. 40 As... Whatman Grade No. 40 Quantitative Filter Paper Ashless Whatman 1440-240. 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... more

Whatman Grade No. 42 Quantitative Filter Paper Ashless Whatman 1442-150. 42 Qu... Whatman Grade No. 42 Quantitative Filter Paper Ashless Whatman 1442-150. 42 Quantitative Filter Paper Ashless 1442-150 is ideal for the preparatory steps in the Toxicity Testing and Analysis of Residues. Pre-weighed to insure consistency and eliminate... more