CIRO Ammonia Safety & Emergency Response

Question 1

What is the OSHA Permissible Exposure Limit (PEL) for ammonia?

Accepted Answer

50 ppm (8-hour TWA)

Answer

OSHA sets the PEL for ammonia at 50 ppm as an 8-hour time-weighted average. The IDLH (Immediately Dangerous to Life and Health) concentration is 300 ppm, and the odor threshold is 5-50 ppm.

Question 2

What personal protective equipment is required when working with ammonia systems?

Accepted Answer

Full-face self-contained breathing apparatus (SCBA) or ammonia-rated respirator, chemical splash goggles, rubber gloves, and protective clothing

Answer

Ammonia PPE includes SCBA or ammonia-rated respirator cartridges, chemical splash goggles (ammonia is caustic to eyes), chemical-resistant gloves and boots, and protective clothing to prevent skin contact with liquid ammonia.

Question 3

What is the RAGAGEP standard for ammonia refrigeration systems?

Accepted Answer

Recognized and Generally Accepted Good Engineering Practices, including IIAR standards, ASHRAE 15, and applicable building codes

Answer

RAGAGEP includes IIAR standards (IIAR-2 for piping, IIAR-5 for start-up), ASHRAE Standard 15, and ANSI/ASME codes that define safe design, installation, and operation of ammonia refrigeration systems.

Question 4

What should be the immediate response to an ammonia leak?

Accepted Answer

Evacuate the area, alert others, activate the emergency response plan, shut down the system if safe to do so, and contact emergency services

Answer

Ammonia leak response follows the facility's Emergency Action Plan: evacuation, notification, system shutdown (if safe), donning appropriate PPE before attempting any remediation, and calling for emergency support.

Question 5

What is the EPA Risk Management Program (RMP) and when does it apply?

Accepted Answer

A program requiring facilities with 10,000+ pounds of ammonia to develop risk management plans, conduct hazard analyses, and maintain emergency procedures

Answer

EPA's RMP rule (40 CFR Part 68) applies to facilities with more than 10,000 pounds of anhydrous ammonia, requiring hazard assessment, prevention programs, and emergency response procedures.

CIRO - Certified Industrial Refrigeration Operator Practice Test

CIRO - Certified Industrial Refrigeration Operator Practice Test

CIRO Ammonia Safety & Emergency Response