The PF1 powder flow tester has been specifically designed for standardized testing in full compliance with Pharmacopeia requirements as laid down in USP and Ph. Eur. 2.9.36. Its optimized design allows for different, yet easily repeatable test conditions and methods for powder flow characterization. Change-over between configurations is simple with quick-change components that do not require any additional tools.
Three different standardized flowability tests for characterization of powders and granulates
Flow through an orifice with funnel or cylinder and angle of repose type tests
Robust stand with two easily height-adjustable arms (quick-lock without any tools)
Allows to flexibly use either a stirrer or a filling funnel without having to remove any components
Integrated timer starts & stops automatically when opening /closing the shutter
Simplified "Mass per Time" measuring with laboratory balance
Optimized for fast and trouble-free cleaning
The "Angle of Repose" test allows evaluation of the flow properties of solids based on the shape of the cone. By measuring the cone height on a standardized platform, the angle of repose (in degrees) can be easily calculated to classify the powder (e.g. based on the range classification according to Carr). To form a symmetrical cone on the platform, the height of the orifice through which the powder passes can be fixed – or varied as the pile forms.
Using the Cylinder setup is ideal to determine the flow rate of “powder moving over powder”. This method eliminates the effect of the container material on test results.