This recommended practice establishes the instrumentation@ test site@ and test procedure for determining the exterior operational sound level for snowmobiles.
SAE J1161-2017 history
2021SAE J1161-2021 Operational Sound Level Measurement Procedure for Snow Vehicles
2017SAE J1161-2017 Operational Sound Level Measurement Procedure for Snow Vehicles
2004SAE J1161-2004 Operational Sound Level Measurement Procedure for Snow Vehicles
1983SAE J1161-1983 OPERATIONAL SOUND LEVEL MEASUREMENT PROCEDURE FOR SNOW VEHICLES
1976SAE J1161-1976 Operational Sound Level Measurement Procedure for Snow Vehicles@ Recommended Practice (November 1976)