R. Beier and R. Korderecki, Guide to the expression of uncertainly in measurement. [3] Example of an uncertainty budget for NO x at a specific site of CENTC264 WI264043 [4] Example of an uncertainty budget for SO 2 at a specific site of CENTC264 Air Quality ? Determination of performance requirements of a measurement method derived from a stated measurement uncertainty Stationary source emissions -Determination of mass concentration of nitrogen oxides (NO x ) -Reference method -chemiluminescence Stationary source emissions -Determination of mass concentration of sulphur dioxide -Reference method Stationary source emissions -Determination of mass concentration of oxygen (O 2 ) -Reference method, Stationary source emissions -Determination of mass concentration of the water vapour (H 2 O) -Reference method Stationary source emissions -Determination of mass concentration of carbon monoxide (CO) -Reference method, pp.2000-2002, 1999.

E. J. Sneek, Type approval of instruments and uncertainty calculations in the new EN-standards for the measurement of SO 2 , NO 2 , CO and O 3 in ambient air, EC on the limitation of emissions of certain pollutants into the air from large combustion plants and Council Directive, 2000.