CA Disc Membrane

A CA disc membrane is a cellulose acetate filter disc commonly used for aqueous solutions, culture media and biological samples. Laboratories choose a cellulose acetate disc membrane when gentle handling of the sample matters more than resistance to harsh solvents.

The five GVS listings cover 90 mm discs at 0.65 µm and 5.0 µm, a 142 mm disc at 1.2 µm, each in packs of 25, and a 47 mm kit that pairs 0.45 µm cellulose acetate discs with a matching 47 mm device holder.

Select the pore size by what you need to retain, with 0.45 µm for routine clarification and the coarser grades for prefiltration of heavier loads, and the diameter to match your filter funnel or holder. Lancetech Limited can quote further CA disc membrane sizes from GVS on request.