What is BS EN 15293- Automotive ethanol (E85) fuel - Requirements and test methods about?
BS EN 15293 specifies requirements and test methods for marketed and delivered automotive ethanol (E85) fuel.
BS EN 15293 is applicable to automotive ethanol (E85) fuel for use in spark ignition engine vehicles designed to run on automotive ethanol (E85) fuel.
Automotive ethanol (E85) fuel is a mixture of nominally 85 % (V/V) ethanol and unleaded petrol, but also including the possibility of having different “seasonal grades” containing more than 50 % (V/V) ethanol.
Who is BS EN 15293- Automotive ethanol (E85) fuel - Requirements and test methods for?
BS EN 15293- Automotive ethanol (E85) fuel - Requirements and test methods is useful for:
- Petroleum industry
- Manufacturers of flex-fuel vehicles
- Environment protection agencies
- Manufacturers of spark engine vehicles
Why should you use BS EN 15293- Automotive ethanol (E85) fuel - Requirements and test methods?
Because ethanol burns cleaner than gasoline, flex-fuel vehicles emit fewer toxic fumes into the environment. Flex fuel also emits fewer greenhouse gases than traditional gasoline, this makes it a more environmentally friendly option.
Engine calibration is determined by the oxygen content of the fuel so in order to allow a safe engine calibration a minimum indicative octane level is required to allow the vehicle manufacturers to ensure that they maximize the fuel economy and at the same time avoid engine knock and hence potential engine damage. BS EN 15293 provides guidance on maintaining a minimum indicative octane level.
Climatically dependent requirements and test methods are specified in BS EN 15293 to ensure water tolerance and volatility requirements.
BS EN 15293 helps you ensure the contaminants and emission due to use of Automotive ethanol (E85) fuel makes less harm to the environment.
What’s changed since the last update?
BS EN 15293:2018 supersedes CEN/TS 15293:2011. BS EN 15293:2018 includes some technical changes with respect to CEN/TS 15293:2011. These include:
- The maximum level of ethers has been excluded as the requirement of using standardized unleaded petrol and ethanol as blending components made this requirement obsolete;
- The requirements towards contaminants originating mainly from ethanol are aligned with the newly revised EN 15376 that has been updated in order to allow blending at all ethanol concentrations up to and including 85 %(V/V). An example is the lowering of the limit on sulfate content from 4,0 mg/kg to 2,6 mg/kg. Density minimum has been lowered from 0,760 g/m3 to 0,755 g/m3. As alignment of units for elemental contaminants is pursued, a mean density value of 0,780 g/cm3 has been used
- In line with recent discussions in CEN/TC 19 on the dating of normative references in European fuel specifications, combined with the fact that the product specified in this document is not linked to EU Directives [1], [2], [3], dates of publication of test method standards have been removed where the CEN rules allow such
- Additional clarification on the impact of additives has been included
- The determination of higher alcohols is now to be done by the multi-GC technique, because the O-FID technique has not been evaluated with a significant number of laboratories in the Round Robin exercise. EN ISO 22854 has been revised as it needed to include an additional procedure for E85
