For casting density index samples
Vacuum density index testing
The densities of the two samples (atmosphere sample and vacuum samples) previously cast using the Vacuum Density Tester 3VT Plus are determined with the aid of the MK 3000 balance using the principle of Archimedes. The density index is then calculated automatically. This is an important indicator of the quality of the aluminium melt. The density index represents the percentage difference in density of the two samples. The lower the density index the cleaner the aluminium melt.