Digital density measurement of liquids and semisolids is a widely used technique for quality control in industries ranging from coatings to beverages, petroleum products to pharmaceuticals. Density can be measured accurately and fast, which makes it well suited to check the purity of incoming goods or to determine concentrations. It is also used to convert mass into volume.
From sample preparation to checks and adjustments, there are a few pitfalls to avoid. Most often air bubbles and inefficient cleaning lead to bad results, but it is worth thinking about the influence of temperature or viscosity as well and to consider regular calibrations. Benefit from the inventors of the oscillating U-tube and find the right workflow for your samples. This will save you time and money, give reproduceable results and help you with the next audit.
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