This SAE Recommended Practice, limited to liquid coolant systems, establishes uniform vehicle heater test procedures. Both laboratory and complete vehicle tests are specified in this document. Required test equipment, facilities and definitions are included. Note: Defrosting and defogging procedures and requirements can be found in SAE J902, J381, J382, and J953.
SAE J638-2011 Referenced Document
SAE J381-2009 Windshield Defrosting Systems Test Procedure and Performance Requirements Trucks, Buses, and Multipurpose Vehicles
SAE J382-1994 Windshield Defrosting Systems Performance Requirements--Trucks, Buses, and Multipurpose Vehicles
SAE J902-2003 Passenger Car Windshield Defrosting Systems
SAE J953-1999 Passenger Car Backlight Defogging System
SAE J953-2011 Passenger Car Backlight Defogging System
SAE J638-2011 history
2011SAE J638-2011 Motor Vehicle Heater Test Procedure
1998SAE J638-1998 Motor Vehicle Heater Test Procedure
1982SAE J638-1982 Motor Vehicle Heater Test Procedure