—If the car (no older than 1993) is leaking R-134a refrigerant – a greenhouse gas – it qualifies for the program. Older cars or light trucks that were retrofitted to use R-134a also qualify.

—If the car (no older than 1993) is leaking R-134a refrigerant – a greenhouse gas – it qualifies for the program. Older cars or light trucks that were retrofitted to use R-134a also qualify.

This page lists hydrofluorocarbon (HFC) and HFC blend refrigerants, and some non-HFC refrigerants. The lists provide: global warming potential (GWP) refrigerant safety classification blend composition ...

Angle-dispersive X-ray diffraction and Fourier transform infrared spectroscopy have been employed to study the phase diagram of urea crystal beyond 15 GPa and at temperatures in excess of 400 K.