Using the Heubach method to measure the emission of dust in animal feed additives

During Tecaliman-led experiments on this method, the protocol trialled during the preliminary test phase was that recommended by the equipment manufacturer as part of tests designed to identify the concentration of active agents in dust.

Our objective differed slightly in that the focus here was to develop a simple dust measurement procedure that could be applied to all animal feed additives. This alternative objective meant that the manufacturer’s recommended protocol was no longer appropriate; a series of tests led to the design of the protocol described below.