Chemical techniques and electronic devices are used in water testing labs to assess the quality of the water. The particular contaminants or parameters being measured determine which tests are run and how they are done. The general process for testing water with both chemicals and electronics is as follows: Electronic Devices pH Meter: pH Meter: Measures the acidity or alkalinity of water using an electronic probe that senses hydrogen ion activity. Conductivity Measurement Evaluates the conductivity of water, a property that is correlated with the amount of dissolved salts (ions) in the water. Turbidity Meter: Determines the amount of light scattered by suspended particles to quantify the clarity of water. Particle count increases with turbidity. Oxygen Meter Dissolved: Uses an electrochemical or other method to measure the amount of dissolved oxygen in water. A spectrophotometer Detects and measures the amount of different contaminants, such as metals and nutrients, by measuring the ...