Internal combustion engines. Determination and method for the measurement of engine power. General requirements

2Scope / Description

This document specifies standard reference conditions for internal combustion engines (using liquid or gaseous fuels) used in commercial production and methods for declaring power, fuel consumption, lubricating oil consumption and test methods. It applies to the following: a) reciprocating internal combustion engines (RIC) (spark-ignition or compression-ignition engines), but excluding free-piston engines; b) rotary piston engines. These engines may be naturally aspirated or supercharged using a supercharger or turbocharger. 1.2 This document applies to engines used for: a) land, rail traction and marine use as defined in ISO 3046-1; b) automotive propulsion as defined in ISO 1585 and ISO 2534; c) motorcycles as defined in ISO 4106; d) propulsion of agricultural tractors and machinery; e) propulsion of earth-moving machinery as defined in ISO 9249; f) propulsion of recreational craft or other vessels of 24 m in length as defined in ISO 8665. This document may also be used for the testing of engines used to propel road construction machinery, industrial trucks and other vessels for which no suitable international standard exists. It can also be used for tests carried out on the manufacturer's test bench as well as in the field.