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Additional information on authorization suspension of dispenser components for use with E85

On Oct. 5, 2006, Underwriters Laboratories Inc. (UL) suspended authorization for manufacturers to use UL Markings (Listing or Recognition) on components for fuel-dispensing devices that specifically reference compatibility with alcohol-blended fuels that contain greater than 15 percent alcohol (i.e., ethanol, methanol or other alcohols).

The following provides background information and answers to frequently asked questions related to this recent suspension. We hope this is of use in making acceptance decisions of ethanol fuel-dispensing installations in your jurisdiction.

No existing safety requirements for E85 dispensers

UL 87, Standard for Safety for Power-Operated Dispensing Devices for Petroleum Products, includes safety requirements for power-operated dispensing devices for petroleum products, such as gasoline for use as motor fuel. This Standard does not address safety requirements for using alternative fuels, such as E85, within those dispensers. Published studies on ethanol indicate that -- in high concentrations -- it may have significantly enhanced corrosive effects versus traditional gasoline. Prior to testing and potentially certifying E85-rated dispensers, UL must establish the appropriate safety requirements, taking into consideration relevant technical issues, such as material compatibility unique to these products.

No reported safety incidents for UL Listed or Recognized subassemblies with E85

The need to establish consistent and appropriate safety requirements for E85 dispensers and components was the impetus for suspending authorization to use UL Markings (Listing or Recognition) on components for fuel-dispensing devices using E85. UL has never certified a dispenser for use with E85. An E85 dispenser manufacturer approached UL in May 2006 with the first request for a certification of an E85 dispenser. UL quickly identified the need to establish safety requirements for E85 dispenser products prior to certification so any material compatibility issues could be addressed. The decision to suspend authorization for components quickly followed, so the new requirements could be applied consistently across all related products (e.g., dispensers and components). To date, there have been:

  • No documented reports of corrosion for UL Listed or Recognized components used with E85
  • No field incidents related to UL Listed or Recognized components used with E85
  • No reported safety issues associated with Listed or Recognized components used with E85

Timing associated with the development of safety requirements

Our technical experts are currently reviewing research to verify material compatibility with E85. We will co-sponsor an E85 Compatibility Technical Forum on Nov. 1-2, 2006, with the U.S. Department of Energy (DOE) to obtain additional advice pursuant to UL establishing performance criteria and offering a Listing program for E85 dispensers. Timing associated with development of the requirements depends upon the availability of material compatibility research gathered before and during the forum. We will provide an update shortly after the forum concludes.

Please click here for a list of frequently asked questions.

While there have been no reported safety issues related to UL Listed or Recognized components used with E85, UL remains committed to developing the appropriate safety requirements that will adequately address safety concerns. If you have questions or concerns regarding E85, please feel free to contact one of the following staff members:

Bob James
Tampa, Fla.
Phone: +1-800-595-9844
Direct: +1-813-956-8669

Howard Hopper
San Jose, Calif.
Phone: +1-800-595-9844
Direct: +1-408-754-6609

Al Ramirez
Northbrook, Ill.
Phone: +1-800-595-9844
Direct: +1-847-664-2905

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If you have an immediate question or need assistance, please contact Regulatory Services.