The purpose of this SAE Standard is to establish the specific minimum equipment performance requirements for recovery and recycling of HFC-134a that has been directly removed from@ and is intended for reuse in@ mobile air-conditioning (A/C) systems. It also is intended to establish requirements for equipment used to recharge HFC-134a to an accuracy level that meets Section 9 of this document and SAE J2099. The requirements apply to the following types of service equipment and their specific applications.a. Recovery/Recycling Equipment@b. Recovery/Recycling ?C Refrigerant Charging@c. Refrigerant Recharging Equipment Only.Improved refrigerant recovery equipment is required to ensure adequate refrigerant recovery to reduce emissions and provide for accurate recharging of mobile air conditioning systems. Therefore@ 12 months following the publication date of these standard@ requirements in this standard supplements and supercedes@ SAE J2210.