06-096 C.M.R. ch. 100, § 86 - Maximum true vapor pressure
"Maximum true vapor pressure" means the equilibrium partial pressure exerted by a stored liquid at the temperature equal to:
(1) for liquids stored above or below the
ambient temperature, the highest calendar-month average of the liquid storage
temperature, or
(2) for liquids
stored at the ambient temperature, the local maximum monthly average
temperature as reported by the National Weather Service. This pressure shall be
determined:
A. In accordance with methods
described in American Petroleum Institute Bulletin 2517, Evaporation Loss from
External Floating Roof Tanks;
B.
By using standard reference texts;
C.
By American Standard Testing Method (ASTM) D2879-83; or
D. By any other method approved by the
Department or the EPA.
Notes
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