Tap Density Tablet Tester: TD1

The tapped density and tapped volumes of powders, granules, pellets, flakes and other bulk substances are measured according to EP, ASTM and USP regulations. This technique is useful in powder compression and flowability studies as well as to determine the amount of settlement during transit and packaging. The Tapped Density is calculated by mechanically tapping an initial volume of powder within a volumetric cylinder for a predefined time (raising and rotating the cylinder and allowing it to drop a specified distance under its own weight) until no further volume change is observed.

The SOTAX TD 1 Tap Density Tablet Tester complies to USP, ASTM, EP and DIN ISO specifications and has just one position for both USP I and USP II/EP tests. An adapter is used to change the drop height from 14 mm to 3 mm. When the TD 1 detects the presence of the adapter, it will only allow the user to start a USP II test or define a "USER" method with customized parameters. The TD 1 has a digital LCD display, an Ethernet and RS232 port for printer and a RS232 port for balance connection. The last twenty reports giving the serial number of the instrument, method parameters, test results and calculation as Tapped Density, Compressibility index and Hausner ratio, are saved in the instrument memory and can be printed out either on a local or network printer. The 100 ml and 250 ml cylinders are loaded onto "easy to lock" holders which allow free rotation of the cylinders. The weight of the holders complies with pharmacopeia requirements.