For application of this section it should be interpreted
that for equations (15) and (17) the term "conc" applies to the averaged
gas concentrations, as determined in accordance with 5.11, measured
or corrected in accordance with 5.12.2 (conc, dry/Kw,r)
to a wet basis and (in the case of NOx) multiplied by the
KHDIES correction factor for humidity and temperature in
accordance with 5.12.3.
For equation (16) the term "conc" applies to the averaged gas
concentrations, as determined in accordance with 5.11, measured or
corrected in accordance with 5.12.2 (conc, wet · Kw,r)
to a dry basis and (in the case of NOx) multiplied by the
KHDIES correction factor for humidity and temperature in
accordance with 5.12.3.