This is a procedure for calculation of gaseous emissions data, specifically, emission index, fuel-air ratio, and combustion efficiency for aircraft turbine engines based on the measurement of carbon monoxide, carbon dioxide, total hydrocarbons, and the oxides of nitrogen, This document includes instructions for the adjustment of the measured concentrations of the constituents of the exhaust for: a. the humidity of the inlet air, b. the car dioxide content of the inlet air, c. the interference of carbon dioxide and water on the measured concentrations of carbon monoxide and the oxides of nitrogen, d. the interference of oxygen on the measured concentration of carbon dioxide, e. the efficiency of the converter for changing other oxides of nitrogen to nitric oxide, and f. the basis of measurement (semidry or wet).
SAE ARP1533-1996 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