Ammonia Refrigeration 4
Ammonia Refrigeration 4 : eTool: Anhydrous ammonia is widely used as refrigerant in industrial facilities such as: (a) meat, poultry, and fish processing facilities, (b) dairy and ice cream plants, (c) wineries and breweries, (d) fruit juice, vegetable juice, and soft drink processing facilities, (e) cold storage warehouses, (f) other food processing facilities, (g) seafood processing facilities aboard ships, and (h) petrochemical facilities. Receiving and Storage: Ammonia receivers and storage vessels are permanently connected to a mechanical refrigerating system by inlet and outlet pipes for the storage of liquid refrigerant. Ammonia refrigeration systems are closed systems. The most obvious hazard is an ammonia release, which can occur as a result of improper: (a) Ammonia Receiving Operations, (b) Storage of Ammonia in Vessels, (c) Hoses. Emergency Response: Ammonia is considered a high health hazard because it is corrosive to the skin, eyes, and lungs. Exposure to 300 ppm is immediately dangerous to life and health. If the possibility of exposure above 300 ppm exists, use a MSHA/NIOSH approved self-contained breathing apparatus with a full facepiece operated in a pressure-demand or other positive-pressure mode. Ammonia is also flammable at concentrations of approximately 15 to 28% by volume in air. When mixed with lubricating oils, its flammable concentration range is increased. It can explode if released in an enclosed space with a source of ignition present, or if a vessel containing anhydrous ammonia is exposed to fire. See more from topic source: https://www.osha.gov/html/a-z-index.html
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