Camlab Filters branded grade 260 glass micro-fibre filter papers that comes as a pack of 50. This filter paper has a pore size of 1.0um and a diameter of 47mm. These filter papers are made from 100% borosilicate micro-glass fibres, and are binder free. Due to the very fine micro fibres, these filters are perfect for applications that require micro-filtrations. These filter papers can be used in a variety of applications from filtration of industrial water, ligand binding testing, solvent filtration, sample filtration, suspended solids in water through to cell collection. They have an excellent level of particle retention and large load capacity. They are non-hygroscopic and biologically inert, and have a high permeability against passing air. The GF/B filter paper has a chemical resistance to most solvents and reagents except hydrofluoric acid, and can withstand temperatures up to 500oC