Filter Papers, round, grade MN 640 w, 150 mm, 100 pcs.

equivalent to Whatman/Schleicher Schüll article No. 1441150. Basis weight: 85 g/m2. Thickness: 0.2 mm. Filtration speed: 9 s/10 ml. Smooth. Ash free, fast filtering, for coarse precipitates as iron and aluminum, bismuth, copper iron sulfid, nickel dimethylglyoxime.

MN 640 w is a fast, ashless filter paper. Recommended for analytical procedures involving coarse particles or gelatinous precipitates