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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.

This SAE Recommended Practice was developed to provide a method of recommending the availability of various dimensional output shaft and crankcase flange combinations.

This SAE Recommended Practice was developed to provide a method of recommending the availability of various dimensional output shaft and crankcase flange combinations.

The scope of this SAE Recommended Practice is to provide a uniform practice for the testing of small engine powered alternating current generator sets. This document is limited to reciprocating piston engines of less than 14.9 kW (20 BHP).

The scope of this SAE Recommended Practice is to provide a uniform practice for the testing of small engine powered alternating current generator sets. This document is limited to reciprocating piston engines of less than 14.9 kW (20 BHP).

The scope of this SAE Recommended Practice is to provide a uniform practice for the testing of small engine powered alternating current generator sets. This document is limited to reciprocating piston engines of less than 14.9 kW (20 BHP).

The purpose of this code is to provide a uniform means of comparing small gasoline engines. It is not intended as a laboratory manual. The code is considered the nearest present-day practical approach. Governor characteristics are considered part of the end item specification.

This SAE Standard is applicable to small spark and compression ignition engines, having a maximum of 1.0 L sweep volume displacement, which are commonly operated outdoors, powering lawn and garden, construction, and general utility equipment. It is not intended to cover engines powering boats.

The purpose of this code is to prove a uniform means of comparing small gasoline engines of 0.82 L (50 in3) or less in displacement and 15.1 kW (20 hp) or less in power output. It is not intended as a laboratory manual. Governor characteristics are considered part of the end item specification. Replaced with J1349

This recommended practice applies to domestic four-cycle air- and water-cooled engines having a maximum of 20 hp (14.9 kW) or less in power output and/or 50 in3 (0.82 L) or less in displacement, with horizontal or vertical crankshafts.

This SAE Recommended Practice applies to domestic four-cycle air- and water-cooled engines having a maximum of 20 hp (14.9 kW) or less in power output and/or 50 in3 (0.82 L) or less in displacement, with horizontal or vertical crankshafts.

This SAE Recommended Practice specifies a uniform procedure for the evaluation of gaseous exhaust emissions from small utility engines typically less than 20 kW. Details of engine test setup and exhaust gas analysis techniques are specified with the intent of providing a uniform and reproducible method of measurement. The intent has been to allow as much flexibility as possible in the physical construction of the experimental apparatus. Therefore, only those portions of the apparatus whose operation is critical to the accurate measurement of emissions levels are prescribed in detail. An engine test procedure including a test sequence is outlined such that it would cover the various applications in which small engines are used. The intent is to provide an understanding of the levels of exhaust emissions and does not imply that in a given application, an engine would operate in all the modes outlined in the test procedure.