This SAE Recommended Practice establishes the instrumentation and procedure to be used in measuring the bystandard sound level of engine powered equipment under 15 kW (20 bhp) typical of their normal operation. it is intended to include equipment such as lawn mowers, snow blowers, and tillers. It is not intended to include equipment designed primarily for operation on highways or within factories and buildings, or vehicles such as motorcycles, snowmobiles, and pleasure motorboats that are covered by other SAE Standards or Recommended Practices. This procedure does not cover chain saws. The SAE Recommended Practice may also be used when measuring the bystander sound level on similar equipment powered by electricity or other power sources.
SAE J1175-1985 history
2012SAE J1175-2012 Bystander Sound Level Measurement Procedure for Small Engine Powered Equipment
1985SAE J1175-1985 Bystander Sound Level Measurement Procedure for Small Engine powered equipment
1977SAE J1175-1977 Bystander Sound Level Measurement Procedure for Small Engine Powered Equipment@ Recommended Practice