A tool is employed to determine the salt concentration in a liquid, typically water, expressed as grams of salt per kilogram of solution. This measurement quantifies the mass of dissolved salts in a defined mass of the mixture. For instance, a reading of 35 g/kg indicates that every kilogram of the solution contains 35 grams of dissolved salts.
This type of measurement is crucial across various scientific and industrial applications. In oceanography, it informs studies of ocean currents, density, and marine ecosystems. In aquaculture, maintaining precise salt levels is essential for the health and growth of aquatic organisms. Historically, accurate determination of salt concentration has been vital for activities such as preserving food and understanding water properties.