Field Compatible NO
x
Emission Measurement Technique
820647
A simple and feasible approach to the measurement of oxides of nitrogen (NOx) from internal combustion engines is to collect engine exhaust in bags and subsequently analyze the samples with conventional laboratory equipment. The measurement technique that was developed for this purpose incorporates a portable apparatus for collecting bag samples and fuel specific NOx emission calculation methods outlined in the July 23, 1979, Federal Register, Stationary Internal Combustion Engines--Proposed Rules.