SAE J1492-2023 PDF

Scope: This SAE Recommended Practice establishes the test procedure, environment, and instrumentation to be used for measuring the exterior exhaust sound level for passenger cars, multipurpose vehicles, and light trucks under stationary conditions providing a continuous measure of exhaust system or simulated exhaust sound level over a range of engine speeds or simulated engine speeds. This document applies only to road vehicles equipped with an internal combustion engine or with an external sound system. The method is designed to meet the requirements of simplicity as far as they are consistent with reproducibility of results under the operating conditions of the vehicle.

SAE J1492-2023 history

1970 SAE J1492-2023 Measurement of Light Vehicle Stationary Exhaust System Sound Level Engine Speed Sweep Method
1970 SAE J1492-2021 Measurement of Light Vehicle Stationary Exhaust System Sound Level Engine Speed Sweep Method
2008 SAE J1492-2008 Measurement of Light Vehicle Stationary Exhaust System Sound Level Engine Speed Sweep Method
1998 SAE J1492-1998 Measurement of Light Vehicle Stationary Exhaust System Sound Level Engine Speed Sweep Method
1992 SAE J1492-1992 Measurement of Light Vehicle Stationary Exhaust System Sound Level Engine Speed Sweep Method