Description
These indicate properties which are detectable by senses. Colour, Turbidity, Odour and Taste, these parameters are grouped under physical tests. Chemical Tests for Water Quality – These determine the amount of mineral and organic substances that affect the quality of water. The pH of pure water (H20) is 7 at 25 °C, but when exposed to the carbon dioxide in the atmosphere this equilibrium results in a pH of approximately 5.2 because CO2 in the air dissolves in the water and forms carbonic acid.
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