Macherey-Nagel Filter Papers, round, grade MN 617 G, 450 mm, 100 pcs.

Fast, phosphate-free filter paper. Typical measurements: orthophosphate: <0.005 mg/L (DIN EN ISO 6878); Total nitrogen bounded: <0.5 mg/L (DIN EN 12260); Calcium: <0.5 mg/L (EN ISO 11885); Magnesium: <0.5 mg/L (EN ISO 11885).