Sartorius 11406-50-ACR Membrane Disc Filter, Cellulose Nitrate, Sterile, White with Black Grids, 0.45 μm, 50 mm (Pack of 1000): Amazon.com: Industrial & Scientific
Liberty Tool Co. - The recent bipartisan unanimous vote (December 22, 2015) banning the production of microbeads (10 µm – 1000 µm [1 mm]) (as well as sizes above 1 mm but
Pall Acrodisc Syringe Filter with Glass Fiber Filter - 1 µm, 25 mm (1000/pkg) | Fisher Scientific
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Solved i) In order to calculate the number of liver cells | Chegg.com
Spectra/Mesh 145870 Screen Discs, Polypropylene, 90 mm, 1000 µm, pack of 10 from Masterflex