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Qualitative Filter Paper 9cm Lab Filter Paper for Chemistry, Standard Qualitative Grade 1-Medium Flow 90mm(100 Discs) 9 cm diameter electronics_new_releases_Aug2023 Low Odor Whiteboard Markers FineQualitative Filter Paper 9cm Lab Filter Paper for Chemistry, Standard Qualitative Grade 1 Medium Flow 90mm(100 Discs) Product Features GRADE 1 : 9cm Equivalent to Whatman qualitative grade 1, standard lab filter paper (90mm) LAB FILTER Routinely used in lab to determine fat content, extract solids and clarify liquids CHEMISTRY CLASS Filter paper can teach basic qualitative separations and paper chromatography AIR FILTRATION Collect medium particles