Safety & Environmental Practices Flashcards

Which method is recommended for detecting refrigerant leaks?

Answer: Using an electronic leak detector, UV dye, or soapy water solution

Electronic detectors, UV dye with a black light, and soapy water are all acceptable methods for locating MVAC system leaks.

If a significant leak is discovered after charging, what should the technician do?

Answer: Recover the refrigerant, repair the leak, evacuate, and recharge

Leaks must be repaired before recharging — operating with known leaks releases refrigerant to the atmosphere and will damage the system.

What is the correct way to move a refrigerant cylinder?

Answer: Use a hand truck and keep it upright with the valve protected

Cylinders must be kept upright, secured to a hand truck, and never dragged, dropped, or moved by the valve to prevent damage.

Refrigerant cylinders must be stored with valve caps:

Answer: Installed and tightly secured at all times when not in use

Valve caps protect the valve from damage that could cause rapid, uncontrolled refrigerant release — they must be in place whenever the cylinder is not actively connected.

What does MSDS (now called SDS) provide for refrigerants?

Answer: Safety data including hazards, first aid, storage, and disposal information

Safety Data Sheets provide comprehensive information on chemical hazards, handling, storage, emergency procedures, and disposal requirements for refrigerants.

What type of fire extinguisher is appropriate for an MVAC service area?

Answer: CO2 or dry chemical (ABC-rated) extinguisher

CO2 or ABC dry chemical extinguishers are appropriate for automotive service areas covering electrical, oil, and general fire hazards.