Dichte messen

Definitions: Density (g/cm3)

Density is defined as the measurement of how tightly compressed an object or substance is in relation to volume.
In scientific terms density is used to express a sample’s mass per volumetric unit (volume) at 20 °C.


The measurement of density is commonplace throughout industry and academia.

To measure the density of any liquid, solid or gas with accuracy an instrument is required that is specifically designed to measure this parameter.These include hydrometers, pycnometers and digital instruments called density meters that incorporate an oscillating u-tube, where measurements are relative to the density of air. Density must always be measured at a precise temperature in order to negate any errors. When written, density is represented by the Greek symbol Rho but may also be designated the letter D in formulae.

Relative Density (Specific Gravity 20/20 or 25/25):

Relative Dichte

Relative Density (Specific Gravity) is the ratio of the mass of a sample to that of an equal volume of a standard substance (typically water), where 20/20 refers to the temperature of the sample and standard substance respectively.

Relative Density is commonly used within the food, beverage, chemical & pharmaceutical industries.

Pharmacopoeia (the quality standard for all companies concerned with research, development, and manufacturing or testing of medicinal substances, including cosmetics and veterinary products) contains specifications for measurement techniques as well a product specific methods for analysis, known as monographs. There are over 120 monographs in Pharmacopeia that cite density measurement.

Digital density meters including the DSG Series from Bellingham + Stanley, a Xylem brand, utilise the effect of density on the natural resonant frequency of an oscillating U-tube filled with the liquid under test. A simple equation relates the resonant frequency to the mass, volume and density of the test liquid.

Digital density meters are highly precise and often include integral thermal control and dehumidifiers to ensure reading reliability.


The quick and precise density meter for busy labs and factories

The DSG Series from Bellingham + Stanley answers a call from customers looking for highly reliable, premium quality instruments to complete a suite of instrumentation from a brand they trust. DSG Series Density Meters from Bellingham + Stanley are available in 2 unique models offering great flexibility as well as ease of use. 

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