This Volumeter meets ASTM Standard B329-90 for the measurement of the apparent density of refractory metal powders, fine metal powders, and other free flowing powdered materials. It is identical to model S6498516 except that it is supplied with a 18 mesh funnel. A certified 25cc brass density cup is included along with the wood base and stand, glass baffles and lower funnel. See the replacement parts section for additional funnels, cups, and other parts. Contact Steiner Enterprises for special mesh sizes or all stainless alternatives.