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SAE J 1940-2012 (SAE J1940-2012)
Small Engine Power and Torque Rating Procedure
This SAE standard is applicable to small spark and compression ignition engines, having a maximum of 1.0 L sweep volume displacement, powering off-road applications such as lawn and garden, construction, general utility equipment, an doff-highway recreational vehicles. It is not intended to cover engines powering on-road vehicles, motorcycles, or boats.
Society of Automotive Engineers [sae]