The purpose of this SAE Standard is to establish the specific minimum equipment requirements for recovery ecycling echarge equipment intended for use with both R-1234yf and R-134a in a common refrigerant circuit that has been directly removed from@ and is intended for reuse in@ mobile air-conditioning (A/C) systems. This document does not apply to equipment used for R-1234yf and R-134a having a common enclosure with separate circuits for each refrigerant@ although some amount of separate circuitry for each refrigerant could be used.