You must use the following test methods and procedures to conduct performance tests to determine compliance with the emission limits:
Where:
Cadj = pollutant concentration adjusted to 7 percent oxygen;
Cmeas = pollutant concentration measured on a dry basis at standard conditions
(20.9-7) = 20.9 percent oxygen-7 percent oxygen (defined oxygen correction basis);
20.9 = oxygen concentration in air, percent; and
%O2 = oxygen concentration measured on a dry basis at standard conditions, percent.
40 C.F.R. §62.14452