Total Hydrocarbon Equivalent

Total Hydrocarbon Equivalent means the sum of the carbon mass contributions of non-oxygenated hydrocarbons, alcohols and aldehydes, or other organic compounds that are measured separately as contained in a gas sample, expressed as petroleum-fueled engine hydrocarbons. The hydrogen-to-carbon ratio of the equivalent hydrocarbon is 1.85:1.

Source

40 CFR § 94.2

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Scoping language

The definitions of this section apply to this subpart. They also apply to all subparts of this part, except where noted otherwise.

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