This SAE Recommended Practice establishes for passenger cars, light trucks, and multipurpose vehicles with GVW of 4500 kg (10 000 lb) or less, as defined by EPA, and M1 category vehicles as defined by the European Commission; a. Minimum performance standards for defrosting and demisting systems; b. Test procedures that can be conducted on uniform test equipment by commercially available laboratory facilities.
SAE J902-2011 Referenced Document
ISO 3468:1989 Passenger cars; windscreen defrosting systms; test methods
ISO 3470:1989 Passenger cars - Windscreen demisting systems - Test method
ISO 5897:1998 Passenger cars - Rear-window demisting system - Test method
ISO 5898:1997 Passenger cars - Rear-window defrosting system - Test method