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Strictly Necessary
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Cytiva's Whatman™ Grade 0903 Qualitative Filter Paper
Cytiva's Whatman™ Grade 0903 is a thin qualitative filter paper with smooth surface. Offers medium to slow flow rate and good retention for small particles. Filtration speed: 175 herzberg. Typical thickness: 140µm. Basis weight: 65g/m². Retention: 4-7µm.