ISO 8178-9:2012
Reciprocating internal combustion engines — Exhaust emission measurement — 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 8178-9:2012 specifies the measurement procedures and test cycles for the evaluation of smoke emissions from compression ignition engines on the test bed.
For transient smoke test cycles, smoke testing is conducted using smokemeters which operate on the light extinction principle. The purpose of ISO 8178-9:2012 is to define the smoke test cycles and the methods used to measure and analyse smoke. Specifications for measurement of smoke using the light extinction principle can be found in ISO 11614.
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CVP_Secretariat_Loca
Annex D (informative) Example of calculation procedure
Annex E (normative) Test cycle for marine propulsion engines
Annex F (normative) Test cycle for variable speed engines type F (rail traction)
Bibliography
Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols and units
5 Test conditions
5.1 Ambient test conditions
5.2 Power
5.3 Engine air inlet system
5.4 Engine exhaust system
5.5 Cooling system
5.6 Lubricating oil
5.7 Engines with charge air cooling
5.8 Test fuel temperature
6 Test fuels
7 Measurement equipment and accuracy
7.1 General
7.2 Dynamometer specification
7.3 Determination of smoke
7.4 Accuracy
8 Calibration of the opacimeter
8.1 General
8.2 Calibration procedure
9 Test run
9.1 Installation of the measuring equipment
9.2 Checking of the opacimeter
9.3 Test cycle
9.4 Determination of effective optical path length (LA)
10 Data evaluation and calculation
10.1 Data evaluation
10.2 Bessel algorithm
10.3 Ambient correction
10.4 Test report
11 Determination of smoke
11.1 General
11.2 Full-flow opacimeter
11.3 Partial-flow-opacimeter
Annex A (normative) Test cycle for variable-speed off-road engines
Annex B (normative) Test cycle for constant-speed off-road engines
Annex C (informative) Remarks on test cycles
Annex D (informative) Example of calculation procedure
Annex E (normative) Test cycle for marine propulsion engines
Annex F (normative) Test cycle for variable speed engines type F (rail traction)
Bibliography
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CVP_Secretariat_Loca
Annex D (informative) Example of calculation procedure
Annex E (normative) Test cycle for marine propulsion engines
Annex F (normative) Test cycle for variable speed engines type F (rail traction)
Bibliography
Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols and units
5 Test conditions
5.1 Ambient test conditions
5.2 Power
5.3 Engine air inlet system
5.4 Engine exhaust system
5.5 Cooling system
5.6 Lubricating oil
5.7 Engines with charge air cooling
5.8 Test fuel temperature
6 Test fuels
7 Measurement equipment and accuracy
7.1 General
7.2 Dynamometer specification
7.3 Determination of smoke
7.4 Accuracy
8 Calibration of the opacimeter
8.1 General
8.2 Calibration procedure
9 Test run
9.1 Installation of the measuring equipment
9.2 Checking of the opacimeter
9.3 Test cycle
9.4 Determination of effective optical path length (LA)
10 Data evaluation and calculation
10.1 Data evaluation
10.2 Bessel algorithm
10.3 Ambient correction
10.4 Test report
11 Determination of smoke
11.1 General
11.2 Full-flow opacimeter
11.3 Partial-flow-opacimeter
Annex A (normative) Test cycle for variable-speed off-road engines
Annex B (normative) Test cycle for constant-speed off-road engines
Annex C (informative) Remarks on test cycles
Annex D (informative) Example of calculation procedure
Annex E (normative) Test cycle for marine propulsion engines
Annex F (normative) Test cycle for variable speed engines type F (rail traction)
Bibliography