Emergency Response and Safety Flashcards

Which OSHA standard governs Process Safety Management (PSM) for facilities with more than 10,000 lb of ammonia?

Answer: 29 CFR 1910.119

29 CFR 1910.119 is the PSM standard covering highly hazardous chemicals, including ammonia above 10,000 lb.

Which OSHA standard covers training and response requirements for hazardous waste operations and emergency response (HAZWOPER)?

Answer: 29 CFR 1910.120

HAZWOPER requirements, including emergency responder training levels, are found in 29 CFR 1910.120.

Under the EPA's CERCLA/EPCRA rules, what is the reportable quantity for an ammonia release within 24 hours?

Answer: 100 lb

Releases of 100 lb or more of ammonia in 24 hours must be reported to the National Response Center and local authorities.

Why should water hose streams NOT be sprayed directly into a pool of liquid ammonia?

Answer: Adding water causes rapid boiling and increases vapor release

Water adds heat to the cold liquid pool, accelerating vaporization and increasing the vapor cloud.

What is the main purpose of applying a water fog or spray to an ammonia vapor cloud?

Answer: To absorb and knock down vapor, since ammonia is highly water-soluble

Ammonia readily dissolves in water, so a fog pattern helps absorb vapor and control its spread.

Under the HAZWOPER standard, which training level is intended for personnel who take offensive action to stop a release?

Answer: Hazardous Materials Technician

Hazardous Materials Technicians are trained to approach the release point and plug, patch, or stop the leak.

Which EPA regulation requires facilities with more than 10,000 lb of ammonia to prepare a Risk Management Plan?

Answer: 40 CFR Part 68

EPA's Risk Management Program rule is found in 40 CFR Part 68.