No 44 (MN-640 dd)

Whatman No 44 / andMacherey-Nagel 640 dd

Quantitative Filter Papers

Ashless filter papers for quantitative analysis.and

Smooth, Slow filtration.

Thickness 0.16 mm

Filtration speed 100 s

Basic weight 70g/m2

Extremely Low Ash Content (<0.01%)

Ashless filter papers are particularly suited for quantitative routine analysis and are manufactured from refined pulp and linters. They are acid-washed and have an extremely low ash content of < 0.01 %. The amount of α-cellulose is about 95 %and

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