Techniques and Procedures for the Measurement of Aircraft Gas Turbine Engine Emissions

Standard Reference Gases and Analytical Procedures for Use in Gas Turbine Exhaust Measurements

“…As a result, the decision was made, at Pratt & Whitney Aircraft, to develop a set of "primary" standard reference gases for use in our gas turbine engine emissions technology programs. 5 "Primary" in the context of this paper means high accuracy gases which remain in the laboratory and are used to generate transfer standard gases which, in turn, are used to generate working standard and span gases. In addition it was the intent of this program, that where high accuracy analytical procedures were lacking, to develop these procedures.…”