ATP is a molecule found in and around living cells, and as such it gives a direct measure of biological concentration and health. ATP is quantified by measuring the light produced through its reaction with the naturally occurring firefly enzyme luciferase using a luminometer. The amount of light produced is directly proportional to the amount of ATP present in the sample.
ATP tests can be used to:
Control biological treatment reactors
Guide biocide dosing programs
Determine drinking water cleanliness
Manage fermentation processes
Assess soil activity
Determine corrosion / deposit process type
Measure equipment or product sanitation