MT 33 - Tap density
Content Handbook F
Ouline of method
The powder is put into a glass measuring cylinder of known mass which is then raised and allowed to fall vertically through a distance of 2.5 cm on to a rubber pad. The operation is repeated 50 times and the final volume of the powder is measured.
The test may be used for determining the apparent density of a material in connection with national and international health regulations.