ISO 6770:1982

Instant tea — Determination of free-flow and compacted bulk densities

The method for the determination of the free-flow bulk density consists in pouring a sample from a specified funnel into a specified receptacle of known volume, and weighing the contents of the receptacle. The determination of the compacted bulk density consists in determining of the volume of a given mass of the product after a fixed number of taps (usually 100) in a jogging volumeter.