2550b -

The method requires calibrated thermometers or digital probes (such as thermistors or thermocouples). Instruments must be verified against a certified precision thermometer.

The concentration of Dissolved Oxygen (DO) in water bodies is inversely proportional to temperature.

Method 2550B is the standardized protocol for measuring temperature in environmental water samples. While temperature may seem like a simple parameter, its precise measurement is essential because it directly influences: