Scanning electron micrograph of Whatman Grade 42 filter paper. | Download Scientific Diagram
Whatman 1001-070 Quantitative Filter Paper Circles, 11 Micron, 10.5 s/100mL/sq inch Flow Rate, Grade 1, 70mm Diameter (Pack of 100): Science Lab Qualitative Filter Paper: Amazon.com: Industrial & Scientific
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Whatman Filter Paper Grade 5 185mm | 1005-185
5230-185 Whatman 5230-185 Qualitative Filter Paper 8-12 µm, 18.5 cm (50/Pack) New Laboratory Setup Savings - up to 40%, Magnetic Stirrer, Vortex Mixer, Sample Prep, Centrifuge
2 Pks) WHATMAN Grade 5 Qualitative Filter Paper Circles 42.5mm OD 1005-042 B | eBay
Whatman 5 qualitative Filter Paper 5.5 CM 100 Circles cat no. 1005 055 grade 5 | eBay