Bituminous materials include bitumen (asphalt), pitch, tar, and related substances, which are residues of the distillation processes of coal or petroleum products. These substances (as well as certain crude oils) are highly viscous or even solid at room temperature, but melt at temperatures of 100 to 150 °C to give liquids with lower viscosity.
The density of these products is measured for quality control on a routine basis.
The measurement of density at temperatures up to 200 °C can comfortably be performed with the external measuring cell DMA HP connected to an evaluation unit DMA 4100/4500/5000.
The measuring temperature of DMA HP is controlled by a built-in Peltier thermostat.
Temperature: The temperature range of DMA HP is –10 °C (14 °F) to 200 °C (392 °F).