Air CO2 Levels Research Articles

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

This paper is directed to people who are involved in the measurement of gas turbine exhaust emissions and as a consequence in the establishment of standard reference gases and attendant analytical procedures. Several problems exist in connection with the establishment of these standards: A number of standard reference gases have been developed by the National Bureau of Standards for use in the automotive industry which are also suitable for gas turbine exhaust measurements. However, there is a need for additional standard reference materials such as NO in nitrogen, intermediate levels of CO2 in air, and higher concentrations of CO in nitrogen and propane in air. There is difficulty in maintaining certain reference materials with confidence in assay, particularly due to instability in the cylinder. Instrumental operational problems with flame ionization detector type units exist. Of particular importance is the difference in response per carbon atom in different organic molecules and the difference in resp...