1. SCOPE 1.1 This standard prescribes requirements, methods of sampling and test methods for two octane grades of E20 fuel, an admixture of anhydrous ethanol meeting IS 15464 at 20 percent by volume and ethanol free Motor Gasoline meeting IS 2796 at 80 percent volume, under each of BS IV and BS VI categories suitable for use as a fuel in the automobile spark-ignition internal combustion engines of vehicles complying with BS IV and BS VI emission norms respectively. 1.2 This standard does not purport to address all of the safety problems associated with its use. It is the responsibility of the user of this specification to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. 2. REFERENCES The standards given below contain provisions which, through reference in this text, constitute the provisions of this standards. At the time of publication, the editions indicated were valid. All standards are subject to revision, and parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the standard indicated below: 1447 (Part 1) : 2000 Petroleum and its products — Methods of sampling: Part 1 Manual sampling 1448 Methods of test for petroleum and its products: [P : 15] : 2004/ISO 2160 : 1998 Petroleum products — Corrosiveness to copper — Copper strip test [P : 16] : 2014/ISO 3675 : 1998 Laboratory determination of density — Hydrometer method [P : 18] : 1991 Distillation of petroleum products [P : 23] : 2004/ISO 3837 : 1993 Determination of hydrocarbon types — Fluorescent indicator adsorption method [P : 26] : 2013/ISO 5163 : 2005 Determination of knock characteristics of motor and aviation fuels — Motor method [P : 27] : 2013/ISO 5164 : 2005 Determination of knock characteristics of motor fuels — Research method [P : 28] : 2008/ISO 7536:1994 Determination of oxidation stability of motor gasoline — Induction period method ( fourth revision) [P : 29] : 2016/ISO 6246 : 1995 Petroleum products — Gum content of light and middle distillate fuels — Jet evaporation method (third revision) [P : 39] : 2012/ISO 3007 : 1999 Determination of vapour pressure Reid method IS 2796 : 2017 Motor gasoline — Specification (sixth revision) 15464 : 2004 Anhydrous ethanol for use on automotive fuel — Specification