Aerospace Recommended Practice (ARP) 1533 is a procedure for the analysis and evaluation of the measured composition of the exhasut gas from aircraft engines. Measurements of carbon monoxide, carbon dioxide, total hydrocarbon, and the oxides of nitrogen are used to deduce emission indices, fuel-air ratio, combustion efficiency, and exhaust gas thermodynamic properties. The emission indices (EI) are the parameters of critical interest to the engine developers and the atmospheric emissions regulatory agencies because they relate engine performance to environmental impact.
SAE ARP1533B-2013 Referenced Document
SAE ARP1256 PROCEDURE FOR THE CONTINUOUS SAMPLING AND MEASUREMENT OF GASEOUS EMISSIONS FROM AIRCRAFT TURBINE ENGINES
SAE ARP1533B-2013 history
2024SAE ARP1533D-2024 Procedure for the Analysis and Evaluation of Gaseous Emissions from Aircraft Engines
2016SAE ARP1533C-2016 Procedure for the Analysis and Evaluation of Gaseous Emissions from Aircraft Engines
2013SAE ARP1533B-2013 Procedure for the Analysis and Evaluation of Gaseous Emissions from Aircraft Engines
2004SAE ARP1533A-2004 Procedure for the Analysis and Evaluation of Gaseous Emissions from Aircraft Engines
1996SAE ARP1533-1996 Procedure for the Calculation of Gaseous Emissions from Aircraft Turbine Engines