Specifies a bench method for testing reciprocating and rotary piston internal combustion engines which are intended for use in agricultural tractors and machines which may be fitted with a supercharging device using a mechanical supercharger or turbo-charger. It allows curves to be plotted of net power and specific fuel consumption at full load as functions of engine speed. Identical with ISO 2288:1979.

AS 2789.9-1986

Internal combustion engines — Performance, Part 9: Engines for agricultural tractor and machine use — Test code, net power