Superior Vellum paper made of pure cellulose and low ash (max 0.06%). General use in laboratory. Surface weight 85 g/m², pore 10 – 12 μm, thickness 200 μm. Available in flat disks and folded. Equivalent to: Whatman 1
Maximum ash content 0.06%. Paper consisted of long cotton fibers for thick and sticky liquids filtration. Thick and very resistant paper, offering the fastest flow among qualitative filters. Surface weight 130 g/m², pore 25 – 30 μm, thickness 430 μm. Available in flat disks and folded. Equivalent to: Whatman 114
