
A dry, chilled gas sample is passed to a non dispersive infra red (NDIR) analyser using a Horiba Flue Gas Analyser. CO results are adjusted to reference oxygen and reported and mg/Nm3.
This method has been validated for CO concentrations with sampling periods of 30 minutes in the range of 0 mg/Nm3 to 400 mg/Nm3 for large combustion plants and 0 to 740 mg/Nm3 for waste and co incineration.