Which organization can test recovery equipment used to service a system containing R12?

• A. EPA
• B. ISO
• C. UL
• D. UL, AHRI

Answer: (D)

Testing recovery equipment for safety and performance is about ensuring it operates reliably when servicing systems with refrigerants like R12. UL covers safety certification, checking that the device’s construction, electrical systems, and protective features meet established standards. AHRI handles performance certification, confirming how well the equipment recovers refrigerant, its efficiency, operating limits, and compatibility with various refrigerants. When a recovery machine has both UL safety certification and AHRI performance certification, technicians can trust it to function safely and effectively in the field. The EPA sets handling rules, but it relies on these recognized certifying bodies to verify equipment; ISO provides general standards but doesn’t provide this specific certification. So the combination of UL and AHRI certifications is what ensures the recovery equipment is suitable for servicing systems containing R12.