Leak detection is a very important part of the service and maintenance of systems that use gases under pressure. The obvious application is the use of refrigerants in air conditioning and refrigeration. Others include natural gas for heating, nitrogen, oxygen, compressed air and CO2.
In fact, with the advent of new refrigerants and the containment and handling that they require, gas leak detection has taken on a more significant role in daily hvacr service. And, there are several methods of leak detection available, including electronic devices, internal system dyes, and chemical gas leak detectors.