1. Federal Register, 1993 . Method 18 - Measurement of gaseous organic compound emissions by gas chromatography . 40 CFR Part 60, App. A, Fed. Reg. , 7-1-93 Ed. , pp.774 -785 .
2. Federal Register, 1993 . Method 25A - Determination of total gaseous organic concentration using a flame ionization analyzer . 40 CFR Part 60, App. A, Federal Register , 7-1-93 Ed. , pp.862 -865 .