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2. Total dissolved solids - Wikipedia

   en.wikipedia.org/wiki/Total_dissolved_solids

   Total dissolved solids (TDS) is a measure of the dissolved combined content of all inorganic and organic substances present in a liquid in molecular, ionized, or micro-granular (colloidal sol) suspended form. TDS are often measured in parts per million (ppm). TDS in water can be measured using a digital meter.

3. Fresh water - Wikipedia

   en.wikipedia.org/wiki/Fresh_water

   Fresh water or freshwater is any naturally occurring liquid or frozen water containing low concentrations of dissolved salts and other total dissolved solids. Although the term specifically excludes seawater and brackish water, it does include non-salty mineral-rich waters such as chalybeate springs. Fresh water may encompass frozen and ...

4. Mineral water - Wikipedia

   en.wikipedia.org/wiki/Mineral_water

   The more calcium and magnesium ions that are dissolved in water, the harder it is said to be; water with few dissolved calcium and magnesium ions is described as being soft. [ 2 ] The U.S. Food and Drug Administration classifies mineral water as water containing at least 250 parts per million total dissolved solids (TDS), originating from a ...

5. Total suspended solids - Wikipedia

   en.wikipedia.org/wiki/Total_suspended_solids

   Total suspended solids (TSS) is the dry-weight of suspended particles, that are not dissolved, in a sample of water that can be trapped by a filter that is analyzed using a filtration apparatus known as sintered glass crucible. TSS is a water quality parameter used to assess the quality of a specimen of any type of water or water body, ocean ...

6. Solution (chemistry) - Wikipedia

   en.wikipedia.org/wiki/Solution_(chemistry)

   Total dissolved solids – Measurement in environmental chemistry is a common term in a range of disciplines, and can have different meanings depending on the analytical method used. In water quality, it refers to the amount of residue remaining after the evaporation of water from a sample.

7. Water quality - Wikipedia

   en.wikipedia.org/wiki/Water_quality

   An electrical conductivity meter is used to measure total dissolved solids. The following is a list of indicators often measured by situational category: Alkalinity; Color of water; pH; Taste and odor (geosmin, 2-Methylisoborneol (MIB), etc.) Dissolved metals and salts (sodium, chloride, potassium, calcium, manganese, magnesium)

8. Conductivity (electrolytic) - Wikipedia

   en.wikipedia.org/wiki/Conductivity_(electrolytic)

   The conversion of conductivity to the total dissolved solids depends on the chemical composition of the sample and can vary between 0.54 and 0.96. Typically, the conversion is done assuming that the solid is sodium chloride; 1 μS/cm is then equivalent to about 0.64 mg of NaCl per kg of water.

9. Wastewater quality indicators - Wikipedia

   en.wikipedia.org/wiki/Wastewater_quality_indicators

   The mass of dried solids remaining on the filter is called total suspended solids (TSS) or nonfilterable residue. Settleable solids are measured as the visible volume accumulated at the bottom of an Imhoff cone after water has settled for one hour. [2]: 89–98 Turbidity is a measure of the light scattering ability of suspended matter in the water.