The most popular Densometer sold for measuring porosity and air permeability in materials of average values. With options such as smaller orifice plates, materials of lower permeability may be effectively tested. By using a 5 oz. cylinder, materials of a higher permeability can be tested (Model 4118).

The Model 4110 includes a 20 oz. cylinder and 1.0 square inch orifice lower clamp plate and upper adapter. The 20 oz. cylinder is graduated to 25cc for the first two spaces and 50cc for each space thereafter, for a total of 300cc. Typical of all new-style densometers, clamping pressure is supplied by turning a knob which raises and locks the lower lifting assembly and clamp plate. Both the automatic timer and instrument base are recommended with these densometers and are ordered separately.