SAE J2772-2011
系统制冷剂泄漏条件下客运车厢制冷剂浓度测量

Measurement of Passenger Compartment Refrigerant Concentrations Under System Refrigerant Leakage Conditions

被代替

SAE J2772-2011 发布历史

SAE J2772-2011由美国机动车工程师协会 US-SAE 发布于 2011-02-07，并于 2011-02-09 实施。

SAE J2772-2011 在中国标准分类中归属于: T36 电子、电气设备，在国际标准分类中归属于: 43.040.60 车身及车身附件。

SAE J2772-2011的历代版本如下：

• 2019年 SAE J2772-2019 系统制冷剂泄漏条件下客运车厢制冷剂浓度测量
• 2011年 SAE J2772-2011 系统制冷剂泄漏条件下客运车厢制冷剂浓度测量

This Standard is restricted to refrigeration circuits that provide air-conditioning for the passenger compartments of passenger and commercial vehicles. This Standard includes analytical and physical test procedures to evaluate concentration inside the passenger compartment. In the early phases of vehicle evaluation, usage of the analytical approach may be sufficient without performing physical tests. The physical test procedure involves releasing refrigerant from an external source to a location adjacent to the evaporator core (inside the HVAC-Module). An apparatus is used to provide a repeatable, calibrated leak rate. If the system has multiple evaporators, leakage could be simulated at any of the evaporator locations. This standard gives detail information on the techniques for measuring R-744 (CO2) and R-1234yf (HFO-1234yf), but the general techniques described here can be used for other refrigerants as well.

标准号

SAE J2772-2011

发布

2011年

发布单位

美国机动车工程师协会

替代标准

SAE J2772-2019

当前最新

SAE J2772-2019

 

 

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