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> pharmacopoeia as well as with the international ISO 4324 standards. This instrument is suitable for testing powder flow time, measureing 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 are calculated. The “flowability” means measuring the flow time of 100g of sample through a specified pouring nozzle. The PTG-S4 is equipped with a built-in analytical balance cell with a range of 1 – 350mg and an accuracy of 1.0 mg. Furthermore the instrument features and integrated dust protection bonnet and a built-in printer.