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Whatman 1004-320 Qualitative Grade 4 Filter Paper, 32 cm Diameter: Amazon.com: Industrial & Scientific
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No.4 Qualitative Filter Paper # 4 Whatman 03033825 - Specification: JIS standard: ─, domestic filter paper equivalent: No. 101, particle retention (μm): 20-25, thickness (μm): 0.21, ash (%): 0.06, weight (g /
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Whatman 1001-125 Qualitative Filter Paper Circles, 11 Micron, 10.5 s/100mL/sq inch Flow Rate, Grade 1, 125mm Diameter (Pack of 100)
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Cytiva Whatman Qualitative Filter Paper: Grade 4 Circles:Filters and Filtration:Filter | Fisher Scientific
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