StacksVerified U.S. regulatory reference

40 CFR Part 98, Table I-12

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov
All processesProcess gas i
CF4C2 F6 | CHF3 | CH2 F2 | CH3 F | C3 F8 | C3 F8 Remote | C4 F8 | NF3 | NF3 Remote | SF6 | C4 F6 | C5 F8 | C4 F8 O
1-Ui0.65 | 0.8 | 0.37 | 0.2 | 0.3 | 0.3 | 0.063 | 0.183 | 0.19 | 0.018 | 0.3 | 0.15 | 0.1 | NA
BCF4NA | 0.21 | 0.076 | 0.06 | 0.029 | 0.21 | NA | 0.045 | 0.04 | 0.037 | 0.033 | 0.059 | 0.109 | NA
BC2 F60.058 | NA | 0.058 | 0.043 | 0.0093 | 0.18 | NA | 0.027 | 0.0204 | NA | 0.041 | 0.062 | 0.083 | NA
BC4 F60.0083 | NA | 0.01219 | NA | 0.001 | NA | NA | 0.008 | NA | NA | NA | NA | NA | NA
BC4 F80.0046 | NA | 0.00272 | 0.054 | 0.007 | NA | NA | NA | NA | NA | NA | 0.0051 | NA | NA
BC3 F8NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | 0.00012 | NA
BCH2 F20.005 | NA | 0.0024 | NA | 0.0033 | NA | NA | 0.0021 | 0.00034 | 0.00088 | 0.00002 | 0.00003 | NA | NA
BCH3 F0.0061 | NA | 0.027 | 0.0036 | NA | 0.0007 | NA | 0.0063 | 0.0036 | 0.0028 | 0.0082 | 0.00065 | NA | NA
BCHF30.012 | NA | NA | 0.057 | 0.016 | 0.012 | NA | 0.028 | 0.0106 | 0.000059 | 0.0039 | 0.017 | 0.0069 | NA
BF2NA | NA | NA | NA | NA | NA | NA | NA | NA | 0.5 | NA | NA | NA | NA

[89 FR 31922, Apr. 25, 2024]