CEN/WS 015 - Bio-ethanol (E58) as automotive fuel

This CEN Workshop Agreement specifies requirements and test methods for marketed and delivered Ethanol E85. It is applicable to Ethanol E85 for use in spark ignition engine vehicles designed to run on Ethanol E85.
Ethanol E85 is a mixture of nominally 85% ethanol and petrol, called E85, but also including the possibility of having different 'seasonal grades' containing more than 70 % ethanol.
NOTE   For the purposes of this CEN Workshop Agreement, the terms "% (m/m)" and "% (V/V)" are used to represent respectively the mass fraction and the volume fraction.