Water, which is free from pathogenic bacteria and is palatable, is known as potable water. The necessity of a potable water supply in the home and place of work can never be over-emphasized. It is also important in institutions preparing, processing and serving food.
Apart from the primary precaution to ensure that water be free from harmful bacteria, it is also necessary to make it palatable. For example, water may contain dissolved salts or minerals, which may give it a brackish taste. For specific uses such as chemical analysis water may have to given special treatment wih resins to remove dissolved impurities or salts.
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