IS 17586 : 2021
E12 and E15 Fuel — Admixture of Anhydrous Ethanol and Motor Gasoline — For Positive Ignition Engine Powered Vehicles — Specification
This Indian Standard prescribes requirements, methods of sampling and test methods for E12 fuel, an admixture of anhydrous ethanol meeting IS 15464 at 12 percent by volume and ethanol free motor gasoline meeting IS 2796 at 88 percent volume and E15 fuel, an admixture of anhydrous ethanol meeting IS 15464 at 15 percent by volume and ethanol free motor gasoline meeting IS 2796 at 85 percent volume, for use as a fuel in the automobile positive-ignition internal combustion engines of vehicles complying with BS VI emission norms.
IS 2796 : 2017 ‘Motor Gasoline — Specification (Sixth Revision)’ already prescribes the requirements for up to 10 percent ethanol blended motor gasoline (E10) and according to the Report of the Expert Committee ‘Roadmap for Ethanol Blending in India 2020-25’ published by NITI Aayog and MoPNG, MoPNG is planning to make E20 fuel, an admixture of anhydrous ethanol at 20 percent by volume and ethanol free motor gasoline at 80 percent by volume, available by April 2025. IS 17021 : 2018 ‘E20 Fuel — Admixture of Anhydrous Ethanol and Gasoline — As Fuel for Spark Ignited Engine Powered Vehicles — Specification’ has already been published by BIS for E20 fuel.
It was felt that intermediate blends like E12 and E15 will give flexibility to Oil Manufacturing Companies to manage supply and demand of Ethanol in the country. For this purpose, IS 17586 has been formulated to prescribe the requirements for E12 and E15 blends.
This standard has requirements for two octane grades of E12 and E15 fuel
To help customers identify E12 and E15 fuel, standard also describes the information to be provided at the dispensing pumps and for labelling of these fuels