J177_197006 MEASUREMENT OF CARBON DIOXIDE, CARBON MONOXIDE, AND OXIDES OF NITROGEN IN DIESEL EXHAUST

The method presented applies to the analysis of the indicated constituents in diesel engine exhaust, or exhaust of vehicles using diesel engines, when operating at steady-state conditions. The measurements of carbon monoxide, carbon dioxide, and nitric oxide are based on continuous sampling and analysis by nondispersive infrared methods.

A supplementary batch sampling, wet chemistry method is described for analysis of the oxides of nitrogen.