SAE J2064的范围包括用于在汽车空调系统中容纳和循环润滑剂、液体和气体R134a和/或R-1234yf制冷剂的耦合软管组件。从历史上看，SAE J2064中包含了对耦合式汽车制冷剂空调总成中使用的软管的要求。已更改SAE J2064的现场连接要求。SAE J3062的发布旨在将这些组件中使用的软管的要求定义为其自身的标准。SAE J2064还提供了SAE J2727移动式空调系统制冷剂排放图表中用于R的必要值- 134a和R-1234yf。MAC软管组件的认证联轴器需要满足某些监管要求。必须将符合SAE J3062要求并经J2911认证的软管用作耦合组件的一部分。满足SAE J3062要求的软管不能确保总成满足SAE J2064的要求。软管组件制造商有责任确认组件符合本规范规定的验收标准。软管总成的设计应尽量减少制冷剂的渗透、系统的污染，并在以下温度范围内发挥作用:- 30至125°C。具体施工细节由用户和供应商商定。本标准发布前生产的散装软管可能标有“SAE J2064”，并且可能不符合SAE J3062的要求。

The Scope of SAE J2064 covers coupled hose assemblies intended for containing and circulating lubricant, liquid and gaseous R134a and/or R-1234yf refrigerant in automotive air-conditioning systems. Historically, requirements for the hose used in coupled automotive refrigerant air conditioning assemblies was included in SAE J2064. SAE J2064 has been changed to establish the requirements for factory and field coupled hose assemblies. SAE J3062 has been issued to define requirements for the hose used in these assemblies into its own standard. SAE J2064 also provides the necessary values used in SAE J2727 Mobile Air Conditioning System Refrigerant Emission charts for R-134a and R-1234yf. The certified coupling of MAC hose assemblies is required in meeting certain regulatory requirements.   A hose which has met the requirements of SAE J3062 and certified in J2911 must be used as part of the coupled assembly. A hose which meets the requirements of SAE J3062 does not insure the assembly will meet the requirements of SAE J2064. It is the hose assembly manufacturer’s responsibility to confirm that the assemblies meet the specified acceptance criteria for this specification. The hose assembly shall be designed to minimize permeation of the refrigerant, contamination of the system, and to be functional over a temperature range of -30 to 125 °C. Specific construction details are to be agreed upon between user and supplier. Bulk hose produced prior to the release of this standard could be labeled “SAE J2064” and may not meet the requirements of SAE J3062.