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This SAE Standard establishes the test procedure, environment, and instrumentation to be used for measuring the exhaust sound level of passenger cars, multipurpose vehicles, and light trucks under stationary conditions. This sound level measurement procedure has been developed as a guide for governmental agencies establishing in-service sound level limitations and enforcement measurement procedures. It is directed at the assessment of vehicle exhaust noise and is not intended to determine maximum vehicle sound levels.

This SAE Standard establishes the test procedure, environment, and instrumentation for determining the exterior sound level for passenger cars, multipurpose vehicles, and light trucks having a gross vehicle mass (weight) rating of 4540 kg (10 000 lb) or less. The test procedure of this standard is characterized by having fixed initial conditions (specified initial vehicle speed and gear selection at a fixed start point on the test site) in contrast to the procedure of SAE Recommended Practice J1030, Maximum Sound Level for Passenger Cars and Light Trucks, which has fixed terminal conditions (attainment of rated engine speed at a fixed end point on the test site). Full-throttle acceleration and closed-throttle deceleration of the vehicle are included in both procedures. Sound levels determined in accordance with this standard are dependent on the performance capability of the test vehicle, as influenced by power-to-mass ratio and overall power train gear ratio.

This SAE Recommended Practice establishes the test procedure, environment, and instrumentation for determining the maximum exterior sound level for passenger cars, multipurpose vehicles, and light trucks with a gross vehicle weight rating (GVWR) of 4540 kg (10 000 lb) or less. This Recommended Practice is intended for use when the maximum sound generating capability of any applicable vehicle is to be measured. The test procedure is characterized by having fixed terminal conditions (attainment of rated engine speed at a fixed end point on the test site) in contrast to the procedure of SAE Standard J986b, Sound Level For Passenger Cars And Light Trucks, which has fixed initial conditions (specified initial vehicle speed at a fixed acceleration point on the test site). Full-throttle acceleration and closed-throttle deceleration of the vehicle are included in both procedures.

This SAE Recommended Practice establishes the test procedure, environment, and instrumentation to be used for measuring the exhaust sound level for passenger cars and light trucks under stationary conditions. This sound level measurement procedure has been developed as a guide for governmental agencies establishing vehicle in-service sound level limitations and enforcement measurement procedures. It is directed at the assessment of vehicle exhaust noise and is not designed to determine maximum vehicle sound levels.

This SAE Standard establishes the test procedure, environment, and instrumentation for determining the exterior sound level for passenger cars, multipurpose vehicles, and light trucks having a gross vehicle weight rating (GVWR) of 4540 kg (10 000 lb) or less. The test procedure of this Standard is characterized by having fixed initial conditions (specified initial vehicle speed and gear selection at a fixed acceleration point on the test site) in contrast to the procedure of SAE Recommended Practice J1030, Maximum Sound Level For Passenger Cars and Light Trucks, which has fixed terminal conditions (attainment of rated engine speed at a fixed end point on the test site). Full-throttle acceleration and closed-throttle deceleration of the vehicle are included in both procedures. Sound levels determined in accordance with this Standard are dependent on the performance capability of the test vehicle, as influenced by power-to-weight ratio and overall power train gear ratio.

This SAE Standard establishes the test procedure, environment, and instrumentation for determining the maximum sound level for passenger cars and light trucks.

This SAE Standard establishes the maximum sound level for passenger cars and light trucks and describes the test procedure, environment, and instrumentation for determining this sound level.

This SAE Standard establishes the maximum sound level for passenger cars and light trucks and describes the equipment, test environment, and procedure for determining this sound level.