汽车制冷剂空调软管要求

[中文适用范围]： SAE J3062的范围涵盖用于汽车空调系统中包含和循环润滑油、液体和气态R-134a、R-152a和/或R-1234yf制冷剂的软管。软管应设计为尽量减少制冷剂的渗透、系统的污染，并在-30至125°C的温度范围内正常工作。具体构造细节应由用户和供应商协商确定。用于耦合汽车制冷剂空调组件的软管的要求包含在SAE J2064中。SAE J3062将这些组件中使用的软管的要求分离到自己的标准中。SAE J2064还提供了SAE J2727中使用的必要制冷剂渗透值。移动空调系统制冷剂排放率在SAE J2727排放图表中规定，并且很重要。MAC软管组件的认证耦合是满足某些监管要求的必要条件。因此，SAE J2064的范围已更改为建立工厂和现场耦合软管组件的组装要求。符合SAE J3062要求的软管可能不符合SAE J2064的要求。在本标准发布之前生产的批量软管可能标有“SAE J2064”，但可能不符合SAE J3062的要求。 [外文原描述]： The scope of SAE J3062 covers hose intended for containing and circulating lubricant, liquid, and gaseous R-134a, R-152a, and/or R-1234yf refrigerant in automotive air-conditioning systems. The hose 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 the user and supplier.Requirements for the hose used in coupled automotive refrigerant air-conditioning assemblies are included in SAE J2064. SAE J3062 separates requirements for the hose used in these assemblies into its own standard. SAE J2064 also provides the necessary refrigerant permeation values used in SAE J2727. Mobile air-conditioning system refrigerant emissions rates are established in SAE J2727 emission charts and are important. The certified coupling of MAC hose assemblies is required in meeting certain regulatory requirements.Therefore, the scope of SAE J2064 has been changed to establish the assembly requirements for factory and field coupled hose assemblies. A hose which meets the requirements of SAE J3062 may not meet the requirements of SAE J2064. Bulk hose produced prior to the release of this standard could be labeled “SAE J2064” and may not meet the requirements of SAE J3062.Cross Reference: ASTMD380,J2064_201508,J2727_202011,J2911_201612,J639_202011