Safety and Compliance Flashcards

A technician must recover R-1234yf refrigerant from a late-model VW. Which certification does federal law require to service motor vehicle A/C systems?

Answer: EPA Section 609

Section 609 of the Clean Air Act requires technicians who service motor vehicle A/C systems to be certified.

Recovery/recycle/recharge equipment for R-1234yf must meet which SAE standard?

Answer: SAE J2843

SAE J2843 covers R-1234yf recovery/recycle/recharge equipment, while J2788 covers R-134a.

What safety property of R-1234yf sets it apart from R-134a?

Answer: It is mildly flammable (A2L classification)

R-1234yf is classed as A2L, mildly flammable, so it needs dedicated equipment and ignition-source precautions.

A technician wants to vent a small amount of refrigerant to the atmosphere to save time. Under the Clean Air Act, this is:

Answer: Prohibited; refrigerant must be recovered

Knowingly venting MVAC refrigerant is prohibited, so it must be recovered with approved equipment.

Why must a technician never use compressed air to blow brake dust off a brake assembly?

Answer: It throws hazardous dust into the air the technician breathes

Blowing dust puts fine particles in the air, so OSHA recommends wet methods or HEPA vacuums instead.

Under OSHA, compressed air used for cleaning must be reduced to less than what pressure at the nozzle?

Answer: 30 psi

OSHA 1910.242(b) limits compressed air for cleaning to less than 30 psi, with effective chip guarding and PPE.

What OSHA standard requires employers to give technicians Safety Data Sheets for the chemicals used in the shop?

Answer: Hazard Communication Standard

The Hazard Communication Standard (HazCom) requires labels, SDSs, and training for hazardous chemicals.