30 TAC 111.121(1) - Figure

Pc = Pm x 14
21 - Y


Pc is the corrected concentration of particulate matter,
Pm is the measured particulate matter concentration, and
Y is the measured concentration of oxygen in the stack gas using the Orsat method for oxygen analysis of dry flue gas as defined in 40 CFR Part 60, Appendix A (Method 3).