Maximum true vapor pressure

Maximum true vapor pressure means the equilibrium partial pressure exerted by the stored liquid at the temperature equal to the highest calendar-month average of the liquid storage temperature for liquids stored above or below the ambient temperature or at the local maximum monthly average temperature as reported by the National Weather Service for liquids stored at the ambient temperature, as determined:
(1) In accordance with methods specified in § 63.111 of subpart G of this part;
(2) From standard reference texts; or
(3) By any other method approved by the Administrator.

Source

40 CFR § 63.641

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Scoping language

All terms used in this subpart shall have the meaning given them in the Clean Air Act, subpart A of this part, and in this section. If the same term is defined in subpart A and in this section, it shall have the meaning given in this section for purposes of this subpart.

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