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...
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...
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