Manual for Refrigeration Servicing Technicians

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Manual for Refrigeration Servicing Technicians ( manual-refrigeration-servicing-technicians )

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6 Recommendations for exposure If you do come into physical contact with ammonia, you should administer the following first aid, and seek immediate medical attention: Skin contact: Remove contaminated clothing. Drench with large quantities of water and continue to wash affected skin areas for at least 20 – 30 minutes, and use safety shower if available. In the case of freeze burns, clothing may adhere to the skin, in which case, immerse the affected area in comfortably warm water to defrost. Eye contact: Flood eyes with clean tap water for at least 20 – 30 minutes followed by immediate medical attention. Ingestion: Rinse mouth with water and give plenty to drink. Do not induce vomiting but seek medical attention immediately. Inhalation: Remove the patient to fresh air immediately. Remove contaminated clothing and keep the patient warm and rested. Seek medical assistance immediately. The patient must be kept under observation for at least 48 hours after exposure as delayed pulmonary oedema may develop. Safety procedure guidelines In order to be able to respond to a release of R717, the following should be adhered to: • Escape routes should be known and must be free from obstacles. • Suitable personal protective equipment including gloves and goggles must be worn at all times. • Ensure that breathing apparatus and/or respirator masks are available and close to hand. It is good practice for engineers to wear their respirator mask loose around the neck when carrying out any works other than visual inspections. • Fire-fighting equipment should be accessible within the machinery room. • Work should only commence on equipment after carrying out a full and approved risk assessment plus a method statement so that “everyone” is aware of what works are being undertaken and by whom. • Only qualified or experienced engineers should work on ammonia systems. • If carrying out works other than routine checks then engineers should work in pairs. Due to the widespread use of ammonia throughout industry, many countries have specific laws relating to its use and handling. It is important to check national regulations with respect to the following: • General health and safety legislation • National and international refrigeration safety standards • Codes of practice issues by trade bodies and institutes • Rules for storage and handling of hazardous materials. 139 Safe Refrigerant Handling

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