Products Instrument Selector Knowledge Service & Support Blog Pod Events Contact Start Knowledge Measurements Density Share Copy link MEASUREMENTS Density OverviewWhat is density?How is density measured?Video of a density measurement using the Sigma 700 force tensiometer Let's find the best tensiometer for your measurements! Density is a physical property of matter that is defined as the mass of a material per its unit volume. What is density? Density is the mass of a material per its unit volume as follows: ρ = m/V Where ρ is the density of the object (kg/m3), m is the mass of the object (kg) and V is the volume of the object (m3). Density defines the tightness of the particles packed inside the substance. The tighter the particles are packed, the higher is the density of the material. Density is a bulk property, which does not depend on the size or amount of the material. Density of a material remains constant at constant temperature. Different substances have different densities, which enables the identification of an unknown material through the evaluation of its density. How is density measured? The Attension® Sigma force tensiometer together with the density kit can be used to measure the density of an unknown liquid. The density of a liquid is important to know in many different physical applications. Video of a density measurement using the Sigma 700 force tensiometer 0:35 Let's find the best tensiometer for your measurements! Our tensiometer selector guides you to your optimal instrument. Try the instrument selector Biolin Scientific Biolin Scientific News About us What we stand for Our offices Follow us Facebook Twitter LinkedIn Instagram Investors Board of directors Management team Quality Career Open positions Corporate responsibility Legal Privacy statement