本SAE标准的目的是为在通用制冷剂回路中与R-1234yf和R-134a一起使用的回收/再循环/再充注设备制定具体的最低设备要求，该制冷剂回路已直接从移动空调（a/C）系统中移除，并在移动空调（a/C）系统中重复使用。本文件不适用于R-1234yf和R-134a所用的设备，这些设备有一个通用的外壳，每个制冷剂都有单独的回路，尽管每个制冷剂都可以使用一些单独的回路。

The purpose of this SAE Standard is to establish the specific minimum equipment requirements for recovery/recycling/recharge 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.