A turbidity value quantifies the cloudiness or haziness of a sample.  It is detected and quantified using an instrument called a turbidimeter by measuring the amount of light scattered or blocked by suspended particles in a water sample. Turbidity is commonly associated with things like microorganisms, silt or other materials - but turbidity can be anything present in a sample that causes the light beam to scatter. Turbidimeters are available as portable, benchtop or online instruments. To learn more about how turbidimeters work or what criteria should be considered when evaluating which turbidimeter is best for you CLICK HERE.