BRANCHIA hardened quantitative filter paper, slow flow rate

Hardened low ash paper (<0.015%) for non critical quantitative works. Slow filtration rate, with excellent retention of very fine particles, such as barium sulfate, zinc sulphide, etc. The hardened and glazed surface makes this paper suitable for use in the electronic industry, in carriers of electronic components or boards. Weight 90 g/m², thickness 180 μm, filtration time 300 s, retention 2 - 3 μm, wet bursting strength> 30 kPa. Available in discs (presented in packages of 100 discs in a box). Equivalence: Whatman 50