The determination of nitric oxide and nitrogen dioxide in flue gases. Part I. Sampling and colorimetric determination

Abstract

Methods for the determination of nitric oxide and nitrogen dioxide have been evaluated for the analysis of flue gases from natural gas combustion systems: these methods have been modified where necessary. The study has included both manual and continuous instrumental methods of analysis; manual sampling and colorimetric methods are described here and continuous instrumental methods in Part II (p. 64).