Performance Requirements for R-134a and R-1234yf Refrigerant Diagnostic Identifiers for Use with Mobile Air Conditioning Systems
This SAE Standard applies to refrigerant identification equipment to be used for identifying refrigerant HFC-134a (R-134a) and/or HFO-1234yf (R-1234yf) refrigerant when servicing a mobile A/C system or for identifying refrigerant in a container to be used to charge a mobile A/C system. Identification or other refrigerants are the option of the equipment manufacturer, although it shall not misidentify refrigerants, per 3.2.
Rationale: This standard was developed to establish refrigerant diagnostic identifier requirements for R-1234yf and R-134a refrigerants. It covers units intended for use separate from recovery/recycle/recharge equipment, intended for identifying refrigerant prior to recovery from mobile air-conditioning (A/C) systems or from refrigerant containers prior to charging a mobile A/C system.