ISO 8178-2:2008 Reciprocating internal combustion engines - Exhaust emission measurement - Part 2: Measurement of gaseous and particulate exhaust emissions under field conditions
This part of ISO 8178, together with ISO 8178-1 and ISO 8178-11, specifies the measurement and evaluation
methods for gaseous and particulate exhaust emissions from reciprocating internal combustion engines (RIC
engines) under steady-state and transient conditions for field testing.
This part of ISO 8178 is applied when RIC engines used in off-road vehicles, marine installations, generating
sets, diesel rail traction or similar applications need to be measured under field conditions or at site in order to
determine the in-use compliance, or when it is not possible to take the measurements under test-bed
conditions or to use the test-bed measurement results.
Re-checking or re-certification of engines for off-road vehicles after rebuild should preferably be tested outside
the vehicle on a suitable load application and measurement device such as a dynamometer or load bank, but
in-use compliance testing may be done on the vehicle.
This method can be used for determining conformity or certification of new, used or rebuilt engines at site or
for in-use compliance testing of off-road vehicles. Confirmation of test-bed results with respect to ISO 8178-4
can also be performed within this part of ISO 8178. However, allowances need to be made for differences in
engine operating parameters from laboratory conditions and for the accuracy of emission measurement
equipment used under field conditions.
For engines used in machinery covered by additional requirements (e.g. occupational health and safety
regulations, regulations for powerplants), additional test conditions and special evaluation methods may apply.
NOTE This part of ISO 8178 is intended to specify special requirements for the measurement of gaseous and
particulate emissions at site or under field operating conditions. In many cases, the test cycles specified in ISO 8178-4 and
ISO 8178-11 cannot be reproduced at site due to constraints of load. For in-use compliance testing, actual in-use
operation might be required.
ISO 8178-2:2008 Referenced Document
ISO 14396 Reciprocating internal combustion engines - Determination and method for the measurement of engine power - Additional requirements for exhaust emission tests in accordance with ISO 8178
ISO 15550:2002 Internal combustion engines - Determination and method for the measurement of engine power - General requirements
ISO 3046-3:2006 Reciprocating internal combustion engines - Performance - Part 3: Test measurements
ISO 8178-11:2006 Reciprocating internal combustion engines - Exhaust emission measurement - Part 11: Test-bed measurement of gaseous and particulate exhaust emissions from engines used in nonroad mobile machinery under transient test conditions
ISO 8178-1:2006 Reciprocating internal combustion engines - Exhaust emission measurement - Part 1: Test-bed measurement of gaseous and particulate exhaust emissions
ISO 8178-4 Reciprocating internal combustion engines — Exhaust emission measurement — Part 4: Steady-state and transient test cycles for different engine applications*, 2020-06-24 Update
ISO 8178-5 Reciprocating internal combustion engines — Exhaust emission measurement — Part 5: Test fuels*, 2021-05-17 Update
ISO 8178-6 Reciprocating internal combustion engines - Exhaust emission measurement - Part 6: Report of measuring results and test*, 2018-04-01 Update
ISO 8178-2:2008 history
2021ISO 8178-2:2021 Reciprocating internal combustion engines — Exhaust emission measurement — Part 2: Measurement of gaseous and particulate exhaust emissions under field conditions
2008ISO 8178-2:2008 Reciprocating internal combustion engines - Exhaust emission measurement - Part 2: Measurement of gaseous and particulate exhaust emissions under field conditions
1996ISO 8178-2:1996 Reciprocating internal combustion engines - Exhaust emission measurement - Part 2: Measurement of gaseous and particulate exhaust emissions at site