Ammonia is used in

• refrigeration plants
• Food storage
• Slaughter-houses
• Ice stadiums

Even low concentrations of ammonia can waste food and cause significant damage

Now that FCHC (flourohydrocarbons) are prohibited, cooling is mainly done with ammonia (NH3) and new refrigerants (such as R134a, R143a, A250, and Solkane BHF). In most cases a fixed monitoring system is required

Portable detectors are also required for leak detection