Macherey-Nagel Filter Papers, round, grade MN 619, 450 mm, 100 pcs.

Basis weight: 75 g/m2. Thickness: 0.17 mm. Filtration speed: 100 s/10 ml. Smooth. MN 619 is a dense filter paper with very high particle retention and slow flow rate. Excellent clarifying capacity for cloudy suspensions and for water and soil analysis.