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Whatman filter paper is a semi-permeable barrier commonly used for filtration purpose. It is used to segregate fine particles from air or liquid. It is widely used in scientific labs, chemical labs, pharmaceuticals to separate solids from fluid.
Posted by Tradeindia user (07-08-2020)
Whatman filter paper is available in different sizes and diameters. The size varies widely such as 15 mm, 30 mm, 55 mm, 100 mm ….. up to 500 mm. It is available as 100 filters/pack or 500 filters/pack.
Depending on different grades, the pore size of whatman filter paper varies like 11 μm (Grade 1), 8 μm (Grade 2), 6 μm (Grade 3), 20-25 μm (Grade 4) and 2 μm (Grade 602 h)