USEPA Method 26A definition
USEPA Method 26A means the promulgated Test Method 26A – Determination of Hydrogen Halide and Halogen Emissions from Stationary Sources, Isokinetic Method
USEPA Method 26A means the promulgated Test Method 26 – Determination of Hydrogen Halide and Halogen Emissions from Stationary Sources, Non-Isokinetec Method;