Division Conversion to reference oxygen concentration

United Kingdom

The formula for calculating the emissions concentration at a reference oxygen level is shown below.

$E_{R} = \frac{21 - O_{R}}{21 - O_{M}} \times E_{M}$

where:

E_R (mg/Nm³)

emissions concentration referred to the reference oxygen level O_R

O_R (vol %)

reference oxygen level

E_M (mg/Nm³)

measured emissions concentration referred to the measured oxygen level O_M

O_M (vol %)

measured oxygen level.