دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: a measure of heating value for natural gas that is fully saturated with water vapor under standard temperature, pressure, and gravity conditions. This is typically a laboratory condition to standardize the amount of water vapor in the gas at a convenient, albeit arbitrary, level. This standard of measure usually has little or nothing to do with the state in which the gas is actually delivered for first sales.

n pI: the number of Btus contained in a cubic foot of natural gas fully saturated with water under actual delivery pressure, temperature, and gravity conditions.

n pI: the number of Btus contained in a cubic foot of natural gas fully saturated with water at a specified pressure base and 60�F (15.5�C).