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Title: API Evaporation- Loss Measurement Programs
Author: J. G. Zabaga
Source: 1978 International School of Hydrocarbon Measurement
Year Published: 1978
Abstract: A great deal of Interest Is currently being focused on the evaporation loss bulletins published by the American Petroleum Institute (API) over a period of years. These bulletins are the primary data source for information on hydrocarbon evaporation loss in the petroleum industry. The API defines evaporation loss as the volume decrease caused by the change of hydrocarbon liquid to hydrocarbon vapor. This volume decrease is usually expressed in barrels per year and has traditionally been used for inventory nnnt-rnl . Regulatory agencies with air quality responsibilities are properly interested in the hydrocarbon mass released from petroleum handling equipment ovor a specific time period. This hydrocarbon mass is defined as an emission and is usually expressed in pounds per day.

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