Ahlstrom Filtration Grade 94 Ashless Quantitative Filter Paper, 12.5 cm dia

Quantitative Filter Paper, 12.5 cm dia, Cotton, Grade 94, Ashless Grade Type, Circle Format, 0.19 mm Thickness, 1.5 µm Particle Retention in Liquid, 94.8 g/m2 Nominal Basis Weight, 1724 sec/100 ml (Herzberg) Filtration Speed

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