The tapped density tester series JV have been designed to measure the tapped density of powders, granules and similar products in accordance with USP Chapter <616> Method 2 and European Pharmacopoeia Chapter 2.9.15. The JV is particularly useful in powder flowability studies and aslo in determining the amount of settlement during transit to optimize pack sizes. Tapped density is achieved by mechanically tapping a measuring cyclinder (i.e. raising the cyclinder and allowing it to drop a specified distance under its own weight) containing the sample under test.