![]() The calculators require that your browser has java script enabled. Values lower than 0.001 will be displayed in the e-format e.g. Values of 10 000 or greater will be displayed in the e-format e.g. Values are given to seven significant figures ( the odd result may show 9's or 0's over running). All results shown will be equivalent values. To use the measurement conversion calculators simply enter a number value into the desired field and click calculate. ![]() For example, the specific gravity of water at 4 oC is 1.0 while its density is 1.0 gcm -3.ĬONVERSION CALCULATORS Convert between Different Units of Measurement Index of Unit Converters Because specific gravity is a ratio, it is a unitless quantity. Specific gravity is a ratio of the mass of a material to the mass of an equal volume of water at 4 oC. Sorry, your browser does not support JavaScript, which is needed to run this calculator Density, Specific Gravity Definition:ĭensity and specific gravity have very similar, but not quite identical definitions.ĭensity is the mass of material per unit volume. Note: conversions are only valid under the same conditions of temperature and pressure. One of the benefits of digital density meters using the U-shaped glass tube is the small volume of sample required (typically 1.5 mL), which allows for a faster temperature equilibrium of the sample.DENSITY UNIT CONVERSION CALCULATOR DENSITY UNIT These density meters can often be upgraded into a dedicated automated multi-parameter system combining density, refractive index, pH, color, conductivity, and more to save time, increase data quality, and prevent any alteration of samples between individual analyses. Some benchtop digital density meters can be connected to sample automation solutions for single or multiple samples, which offer automated sampling, rinsing, and drying. These density meters can reach an accuracy of 0.000005 g/m 3 for density. The temperature control can range from 0 ☌ to 95 ☌. In addition, they feature a built-in Peltier temperature control, which brings the sample to the selected temperature (e.g., 20☌). The measured density can be automatically converted into other units and concentrations for specific applications, such as specific gravity, API, alcohol%, ☋rix, etc.īenchtop digital density meters use the same technology as portable digital density meters, the oscillation of a U-shaped glass tube (U-tube). Each measurement takes only a few seconds, allowing users to move on to the next sample quickly. If a result is needed at a certain temperature, the digital density meter can apply a correction factor to the measured result to compensate the result to a defined temperature. Handheld digital density meters measure the sample at ambient temperature. Filling the U-tube with sample liquid affects its frequency of oscillation: due to factory adjustment with samples of known densities, this frequency of oscillation can be directly correlated with the density of any liquid sample with an accuracy of 0.001 g/cm 3. The relationship between the liquid sample mass and the frequency of oscillation of the U-tube.The oscillation, or vibration, of a U-shaped glass tube (U-tube).Portable digital density meters are used to quickly and accurately determine the density of liquids. Determination of density using digital meters is based on two factors: If needed, a correction factor can be applied later to obtain the temperature-corrected measurement value. Both measurement and temperature values must be recorded. Simply record the measurement value at the surrounding temperature.Depending on the sample volume, it can take some time for the sample to reach this temperature. Use the hydrometer at its calibration temperature (usually 16 ☌ or 20 ☌).When using a hydrometer, the user has two options: It will float higher in a liquid with a greater specific gravity, such as water with sugar dissolved, compared to one with a lower specific gravity, such as pure water or alcohol. Most hydrometers measure the specific gravity of samples: in simple terms, a hydrometer tells the user if a liquid is denser or less dense than water. The density reading is taken by looking at the scale, where the level of the sample liquid aligns with a marking on the hydrometer scale. The hydrometer is immersed into the sample liquid until it floats. Made of blown glass, it consists of a bulbous bottom weighted with lead or steel shot and a long, narrow stem with a scale. A hydrometer is a cost-effective instrument used to determine the density of liquids.
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