![]() Without knowledge of your specific chemical, facility, or hazard, it’s impossible for us to guarantee these signs will match your situation. The signs above represent our interpretation of material information in combination with NFPA 30 and NFPA’s Fire Protection Guide to Hazardous Materials. Pipe supports, hangers, brackets or other piping accessories are not considered part of the piping system. Pipe insulation is also considered part of the piping system. The bulletin provides further guidance as follows: 3.1 Piping SystemĪ piping system includes all ammonia refrigerant piping and fittings, hand valves, control valves and other devices that are inclusive to the refrigeration lines. 114 provides uniform guidelines for identyfing ammonia refrigeration piping and system components to promote safety, facilitate maintenance and provide vital information to emergency respoders. Identification of Ammonia Refrigeration Piping and System Components With an increased use of ammonia in recent years as a refrigerant, it is important to ensure worker safety by providing proper safety identification. At higher levels, ammonia may turn fatal due to throat swelling or chemical burns to the lungs. Exposure to ammonia in small amounts can cause irritation to the eyes, nose and throat. ![]() It is widely used as a refrigerant and for the manufacture of products such as pesticides, fertilizer, plastic and other chemicals. Ammonia is a colorless gas, with a pungent odor.
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