Bulk density apparatus is testing equipment used to measure the bulk density property of powder, granules and other “divided” solids, especially used in reference to mineral components (soil, gravel, sand), chemical substances, (pharmaceutical), plastics like polyethylene (hdpe or mdpe) pvc, polystyrene etc, or foodstuff and any other masses of granular or particulate matter. Bulk density is defined as the mass of many particles of the material divided by the total volume they occupy. The total volume includes particle volume, inter-particle void volume and internal pore volume.