Powder Testing

Angle Of Repose The angle of repose is the angle ( relative to the horizontal base) of the conical pile produced when a granular material is poured on to a horizontal surface. It is related to the density, surface area and coefficient of friction of the material concerned. The angle of repose attachment comprises a 100 mm diameter circular test platform together with a digital height gauge having a range of 0-300 mm. For this particular test, the funnel is normally equipped with a special 10 mm i.d. nozzle mounted 75 mm above the test platform. If necessary, the contents may be stirred to assist in the powder flow. The angle of repose can be determined by reading off the height of the powder cone in mm from the digital display of the height gauge and dividing the reading by 50.