40 CFR § 1065.655 - Chemical balances of fuel intake air ...

when you choose to determine brake-specific emissions as described in § 1065.650(f). (2) Raw exhaust molar flow rate either from measured intake air molar flow rate or from fuel mass flow rate as described in paragraph (f) of this section. (3) Raw exhaust molar flow rate from measured intake air molar flow rate and dilute exhaust molar flow rate as described in paragraph (g) of this section.

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