ISO 8178 is a collection of steady state test cycles used for defining

emission standard Emission standards are the legal requirements governing air pollutants released into the atmosphere. Emission standards set quantitative limits on the permissible amount of specific air pollutants that may be released from specific sources over ...

s for non-road engines in the

European Union The European Union (EU) is a supranational political and economic union of member states that are located primarily in Europe. The union has a total area of and an estimated total population of about 447million. The EU has often been ...

, United States, Japan and other countries. Test cycle ISO 8178 C1 is also referred to as "Non-Road Steady Cycle" and used extensively. The Non-road Transient Cycle is supplementing it in some modern emission standards. It is defined by the

International Organization for Standardization The International Organization for Standardization (ISO ) is an international standard development organization composed of representatives from the national standards organizations of member countries. Membership requirements are given in Ar ...

(ISO).

Parts

The ISO 8178 Reciprocating internal combustion engines — Exhaust emission measurement standard comes in 11 parts: * ISO 8178-1:2020 Part 1: Test-bed measurement systems of gaseous and particulate emissions * ISO 8178-2:2008 Part 2: Measurement of gaseous and particulate exhaust emissions under field conditions * ISO 8178-3:2019 Part 3: Test procedures for measurement of exhaust gas smoke emissions from compression ignition engines using a filter type smoke meter * ISO 8178-4:2020 Part 4: Steady-state and transient test cycles for different engine applications * ISO 8178-5:2021 Part 5: Test fuels * ISO 8178-6:2018 Part 6: Report of measuring results and test * ISO 8178-7:2015 Part 7: Engine family determination * ISO 8178-8:2015 Part 8: Engine group determination * ISO 8178-9:2019 Part 9: Test cycles and test procedures for test bed measurement of exhaust gas smoke emissions from compression ignition engines operating under transient conditions * ISO 8178-10:2002 Part 10: Test cycles and test procedures for field measurement of exhaust gas smoke emissions from compression ignition engines operating under transient conditions (Withdrawn in 2019) * ISO 8178-11:2006 Part 11: Test-bed measurement of gaseous and particulate exhaust emissions from engines used in nonroad mobile machinery under transient test conditions (Withdrawn in 2014-08-13)

External links/source

Dieselnet.com: ISO 8178
*: ... through ...

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