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.
SAE J1991-2011 Referenced Document
SAE J1989-2011 Recommended Service Procedure for the Containment of CFC-12 (R-12)
SAE J1990-2011 Recovery and Recycle Equipment for Mobile Automotive Air-Conditioning Systems
SAE J1991-2011 history
2011SAE J1991-2011 Standard of Purity for Use in Mobile Air-Conditioning Systems
1999SAE J1991-1999 Standard of Purity for Use in Mobile Air-Conditioning Systems
1989SAE J1991-1989 Standard of Purity for Use in Mobile Air- Conditioning Systems@ Standard