The purpose of this SAE Standard is to establish the specific minimum equipment requirements for recovery/recycling equipment intended for use with both R12 and R134a 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 R12 and R134a having a common enclosure with separate circuits for each refrigerant.
SAE J1770-1995 history
2010SAE J1770-2010 AUTOMOTIVE REFRIGERANT RECOVERY/RECYCLING EQUIPMENT INTENDED FOR USE WITH BOTH R12 AND R134A
1995SAE J1770-1995 Automotive Refrigerant Recovery/Recycling Equipment Intended for Use with Both R12 and R134a, Standard October 1995