Performance Requirements for R-134a and R-1234yf Refrigerant Diagnostic Identifiers (RDI) 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 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 of other refrigerants is the option of the equipment manufacturer, although it shall not misidentify refrigerants, per 3.2.
This standard is being updated to include USB communication protocol required for use with SAE J3030 certified equipment when configured for use with R134a. Two of the mixture tests, incorporating R-1243zf are deleted to enhance identifier performance by eliminating testing for a fluid with no known potential for mobile A/C application as a refrigerant at this time.