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API RP 1626-2011


API RP 1626

Storing and Handling Ethanol and Gasoline-Ethanol Blends at Distribution Terminals and Filling Stations, Second Edition, Includes Errata (2010)
Edition: 2nd
American Petroleum Institute / 01-Aug-2010 / 73 pages
Ethanol is widely blended with gasoline in concentrations up to 10 % (E10). Currently, ethanol is blended into 90% of the gasoline fuels in the U.S. and is expected to remain in almost all gasoline fuels for the foreseeable future. E85, a high-ethanol/gasoline blend, is available now in many parts of the U.S., and there is interest in increasing the ethanol percentage in gasoline to 15 %.
The increasing use of ethanol and the recognition that ethanol and gasoline-ethanol blends have different properties than conventional gasoline necessitated the development of this document. Materials that may have been compatible with conventional gasoline may not be compatible with ethanol or gasoline-ethanol blends. Devices that function as intended with conventional gasoline may not function in the same manner when used with ethanol or gasoline-ethanol blends.
This recommended practice will help designers and operators of terminals and filling stations understand the properties of gasoline-ethanol fuel blends and how they differ from gasoline. It will also assist in the design and selection of equipment that will promote safe storage, handling and dispensing of quality gasoline-ethanol blends.
RP 1626 covers E1 to E15 and E65 to E100 (including E85). It addresses ethanol and ethanol fuel characteristics, gasoline-ethanol blending techniques, compatibility of materials, filling station conversion, approaches to respond to releases and spills, tank truck and rail car loading and transportation issues, fuel quality issues, and fire protection. The annexes to RP 1626 contain values for gasoline and gasoline-ethanol blend properties as well as a table of components that require listing by a nationally-recognized third party testing laboratory.

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