Rapid method of estimating the dissolved solid content of a water supply by testing its capacity to carry an electrical current.
A temperature-adjusted measurement of conductivity. Typically measured in micromhos per centimeter (ï3/4µmhos/cm). Conductivity varies depending on water temperature. Specific conductance takes into account the water sample temperature to yield a conductivity value as if the sample were at 25 degrees Celsius.
A measure of water's ability to conduct an electrical current. Specific conductance is expressed in microsiemens per centimeter (mS/cm) at 25 degrees Celsius (25oC). For water containing between 100 and 5,000 mg/L of dissolved solids, specific conductance in mS/cm (at 25oC) multiplied by a factor between 0.55 and 0.71 will approximate the dissolved-solids concentration in mg/L. For most water, reasonable estimates can be obtained multiplying by 0.64.
A measure of the ability of a liquid to conduct an electrical current.
A measure of the ability of a solution to conduct electrical current. Its value is inversely proportional to the solution's electrical resistance. The conductivity value is commonly used in water- desalting processes as a means to evaluate desalting efficiency and to estimate the total dissolved solids concentration; the conductivity value of a water sample is multiplied by an empirical factor representative of the typical total dissolved solids/conductivity ratio for the specific type of water. The units of conductivity are often reported as micromhos per centimetre at 25° Celsius, but this is not a Système International unit; multiplying such a value by 10–4 converts the value to units of siemens per meter.
A measure of electrical conductivity in water that is influenced by the mineral content of the water.
a measure of the ability of water to conduct an electrical current as measured using a 1-cm cell and expressed in units of electrical conductance, i.e., Siemens per centimeter at 25 degrees Celsius. Specific conductance can be used for approximating the total dissolved solids content of water by testing its capacity to carry an electrical current. In water quality, specific conductance is used in ground water monitoring as an indication of the presence of ions of chemical substances that may have been released by a leaking landfill or other waste storage or disposal facility. A higher specific conductance in water drawn from downgradient wells when compared to upgradient wells indicates possible contamination from the facility.
Strictly speaking identical to electrical conductivity; the term is used in hydrogeology to refer to the conductivity of surface and ground water and expressed in micro Siemens per centimeter. It is a direct function of the total dissolved solids in the water.
Measures water's ability to conduct an electric current. Conductivity is reported in micromhos per centimeter (umhos/cm) and is directly related to the total dissolved inorganic chemicals in the water. Values are commonly two times the water hardness unless the water is receiving high concentrations of contaminants introduced by humans.
Measure of the ability of a water to conduct an electrical current, expressed in micromhos per centimeter at 250C. Specific conductance is related to the type and concentration of ions in solution and can be used for approximating the dissolved-solids content of the water. Commonly, the concentration of dissolved solids (in milligrams per liter) is about 65% of the specific conductance (in micromhos/cm). This relation is not constant from supply to supply, and it may even vary in the same source with changes in the composition of the water.
A rapid method of estimating the total dissolved solids (TDS) content of a water supply.
Measurement of the ability of soil water to conduct electricity, usually expressed in units of siemens per meter or millimhos per centimeter. Specific conductance is related to the concentration of ions in the water and is used to estimate the concentration of dissolved solids in the water.
The measure of the electrical conductance of water or a water solution at a specific temperature, usually 25oC. (See resistance.)
