This SAE recommended practice establishes a uniform procedure for the level road test of the brake systems of all combinations of new multipurpose passenger vehicles, new light-duty trucks up to and including 10,000 lb (4500 kg). GVW and new passenger cars when coupled with new trailers (braked or unbraked). For purposes of this test, adherence to each manufacturer’s recommendations1 is mandatory.
SAE J134B-1975 history
2013SAE J134-2013 Brake System Road Test Code Passenger Car and Light Duty truck-Trailer Combinations
1993SAE J134-1993 Brake System Road Test Code Passenger Car and Light Duty truck-Trailer Combinations
1985SAE J134-1985 BRAKE SYSTEM ROAD TEST CODE—PASSENGER CAR AND LIGHT DUTY TRUCK-TRAILER COMBINATIONS
1979SAE J134C-1979 BRAKE SYSTEM ROAD TEST CODE—PASSENGER CAR AND LIGHT DUTY TRUCK-TRAILER COMBINATIONS
1979SAE J134-1979 Brake System Road Test Code - Passenger Car and Light Duty Truck-Trailer Combinations
1975SAE J134B-1975 BRAKE SYSTEM ROAD TEST CODE — PASSENGER CAR AND LIGHT DUTY TRUCK — TRAILER COMBINATIONS
1973SAE J134A-1973 BRAKE SYSTEM ROAD TEST CODE—PASSENGER CAR—TRAILER COMBINATIONS
1970SAE J134-1970 BRAKE SYSTEM ROAD TEST CODE - PASSENGER CAR - TRAILER COMBINATIONS