This SAE Recommended Practice establishes for trucks, buses, and multipurpose passenger vehicles with GVW of 4500 kg (10 000 lb) or greater: a. Minimum performance requirements for the electric blower motor switch. b. Uniform test procedures that include those tests that can be conducted on uniform test equipment by commercially available laboratory facilities.
SAE J2350-1997 history
2012SAE J2350-2012 Electric Blower Motor Switch Trucks, Buses, and Multipurpose Vehicles
2002SAE J2350-2002 Electric Blower Motor Switch—Trucks, Buses, and Multipurpose Vehicles
1997SAE J2350-1997 Electric Blower Motor SwitchTrucks, Buses, and Multipurpose Vehicles