本SAE推荐规程的目的是提供CFC-12（R-12）回收的设备规范，以返回制冷剂回收设施，该设施将按照适当的ARI标准（空调和制冷剂研究所）对其进行处理，或允许在经认证符合SAE J1991要求的设备中回收回收的制冷剂。根据现行规定，美国环保局要求使用经认证符合SAE J2209的回收设备从移动空调（a/C）系统中取出的制冷剂只能使用同一公司或个人拥有的符合SAE J1991的设备进行回收。使用该设备从移动式空调系统中取出的制冷剂不能直接返回到移动式空调系统中。此信息适用于用于维修汽车、轻型卡车和其他具有类似CFC的车辆的设备- 12（R-12）系统。

The purpose of this SAE Recommended Practice is to provide equipment specifications for CFC-12 (R-12) recovery for return to a refrigerant reclamation facility that will process it to the appropriate ARI standard (Air Conditioning and Refrigerant Institute) or allow for recycling of the recovered refrigerant in equipment that is certified to meet the requirements of SAE J1991. Under the existing rule, the U.S. EPA requires refrigerant removed from a mobile air-conditioning (A/C) system using recovery equipment certified to meet SAE J2209 can only be recycled using equipment meeting SAE J1991 that is owned by the same company or individual. It is not acceptable that the refrigerant removed from a mobile A/C system, with this equipment, be directly returned to a mobile A/c system.This information applies to equipment used to service automobiles, light trucks, and other vehicles with similar CFC-12 (R-12) systems.