Historical
SAE J 1991-1999 (SAE J1991-1999)
Standard of Purity for Use in Mobile Air-Conditioning Systems
This information applies to refrigerant used to service automobiles, light trucks, and other vehicles with similar CFC-12 (R-12) systems. Systems used on mobile vehicles for refrigerated cargo that have hermetically sealed, rigid pipe are not covered in this document.
Society of Automotive Engineers [sae]