Grade B cut 15.0cm diameter

Glass Microfiber (GMF) depth filters are designed to trap particulates within the random matrix of glass fibers found within the thickness of the media. The efficiency rating of the filters is characteristic of the complex pore structure that develops as the fibers overlap. The purity of the GMF filter is dictated by the presence of, if any, binder material that acts as a strengthening agent and aids in holding the fibers together.

Due to the characteristically high flow rates of glass microfiber depth filters, they are generally used in applications such as single and multi stage removal of sediments and course particulate and are often used as pre-filtration prior to surface filtration substrates such as membranes. Binderless glass micro fiber filters are an ideal medium to entrap sediment for further analysis and counting.

Wyvern Scientific carries a wide range of glass microfiber media grades and devices including cut discs of all sizes, syringe filters and extraction thimbles.

Grade B - Fine porosity, medium to fast flow rate, with a 1.0µm size particle retention. Ideally suited for the collection of biochemical polymers that have been precipitated by denaturation. This material is twice as thick as Grade A with a higher loading capacity. May also be used as a solid particulate filter for gasses or as a prefilter. Binderless borosilicate glass microfiber.