Ahlstrom Filtration Grade 95 Hardened Ashless Quantitative Filter Paper, 11 cm dia

Quantitative Filter Paper, 11 cm dia, Cotton, Grade 95, Hardened Ashless Grade Type, Circle Format, 0.18 mm Thickness, 1.5 µm Particle Retention in Liquid, 84.2 g/m2 Nominal Basis Weight, 458 sec/100 ml (Herzberg) Filtration Speed

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