In gas/vapor service

In gas/vapor service means that a piece of equipment contains process fluid that is in the gaseous state at operating conditions.

Source

40 CFR § 61.241

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Scoping language

As used in this subpart, all terms not defined herein shall have the meaning given them in the Act, in subpart A of part 61, or in specific subparts of part 61; and the following terms shall have specific meaning given them:

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