The automated PTG-S4 powder testing system is used to measure the flow behaviour of granules and powders in compliance with the current EP <2.9.36/17> and USP <1174> as well as with the international ISO 4324 stds. This instrument is suitable for testing powder flow time, measuring the cone angle (angle of repose) of the collected powder mound and printing a powder flow chart. While measuring the weight, the powder cone density, the powder cone volume as well as the EP „flowability results.