ThisInter national Standard specifiesa method for tes ting internal combustion engines for propulsion of roadvehiclesas defined in ISO It applic .3833able to the evaluation of their performance with a vi ,ewin particular, topresenting curves of power and specific fuel consumption at full load as a function of engine speed.This International Standard is applicable to gross power assessment.ThisInternati onalS tandard concerns internalcombusti on engines used for propulsi ,on of passenger carstrucks andother motor vehicl ,esexcluding motorcyclmopeds and agri ,esculturaltractors normal lytrave lling on roadsand ,included in one of the following categories: