Our petroleum density tester is a specialized instrument used in the petroleum industry to measure the density of liquid fuels and other hydrocarbon-based products. This crucial parameter is indicative of the mass per unit volume and is essential for quality control and compliance with industry standards. The tester typically employs the oscillating U-tube principle, where the sample is introduced into a vibrating U-tube filled with a reference liquid. The frequency of oscillation changes with the density of the sample, allowing for accurate density determination.