MT 169 - Tap density of water dispersible granules
Content Handbook F
Outline of method
1 Standard-method (See CIPAC MT 58.4 and MT 33)
The granules are put into a glass measuring cylinder of known weight 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 powder is measured.
2 Method with dry substance jolting volumeter
The tap density is determined with a Dry Substance Jolting Volumeter according to DIN 53194.