EN 15491:2007
(Main)Ethanol as a blending component for petrol - Determination of total acidity - Colour indicator titration method
General Information
- Abstract
This European Standard specifies a method for determining the total acidity, calculated as acetic acid, of ethanol to be used in petrol blends. It is applicable to ethanol having total acid contents of between 0,003 % (m/m) to 0,015 % (m/m).
NOTE For the purposes of this European Standard, the term “% (m/m)” and “% (V/V)” are used to represent the mass fraction and the volume fraction respectively.
WARNING — Use of this standard may involve hazardous materials, operations and equipment. 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 standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
- Status
- Withdrawn
- Publication Date
- 21-Aug-2007
- Withdrawal Date
- 22-Sep-2026
- Technical Committee
- CEN/TC 19 - Petroleum products, lubricants and related products
- Drafting Committee
- CEN/TC 19 - Petroleum products, lubricants and related products
- Current Stage
- 9960 - Withdrawal effective - Withdrawal
- Start Date
- 24-Nov-2021
- Completion Date
- 23-Sep-2026
- Directive
- Not Harmonized98/70/EC - Quality of petrol and diesel fuels (Dir. 93/12/EEC amendment)
Relations
- Effective Date
- 01-Dec-2021
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Referred By
CEN/TS 15293:2011 - Automotive fuels - Ethanol (E85) automotive fuel - Requirements and test methods - Effective Date
- 28-Jan-2026
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Frequently Asked Questions
EN 15491:2007 is a standard published by the European Committee for Standardization (CEN). Its full title is "Ethanol as a blending component for petrol - Determination of total acidity - Colour indicator titration method". This standard covers: This European Standard specifies a method for determining the total acidity, calculated as acetic acid, of ethanol to be used in petrol blends. It is applicable to ethanol having total acid contents of between 0,003 % (m/m) to 0,015 % (m/m). NOTE For the purposes of this European Standard, the term “% (m/m)” and “% (V/V)” are used to represent the mass fraction and the volume fraction respectively. WARNING — Use of this standard may involve hazardous materials, operations and equipment. 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 standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
This European Standard specifies a method for determining the total acidity, calculated as acetic acid, of ethanol to be used in petrol blends. It is applicable to ethanol having total acid contents of between 0,003 % (m/m) to 0,015 % (m/m). NOTE For the purposes of this European Standard, the term “% (m/m)” and “% (V/V)” are used to represent the mass fraction and the volume fraction respectively. WARNING — Use of this standard may involve hazardous materials, operations and equipment. 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 standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
EN 15491:2007 is classified under the following ICS (International Classification for Standards) categories: 71.080.60 - Alcohols. Ethers; 75.160.20 - Liquid fuels. The ICS classification helps identify the subject area and facilitates finding related standards.
EN 15491:2007 has the following relationships with other standards: It is inter standard links to EN 15491:2021, EN ISO 3696:1995, EN ISO 3170:2025, EN 15376:2014, EN 15376:2011, CEN/TS 15293:2011. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
EN 15491:2007 is associated with the following European legislation: EU Directives/Regulations: 98/70/EC; Standardization Mandates: M/344. When a standard is cited in the Official Journal of the European Union, products manufactured in conformity with it benefit from a presumption of conformity with the essential requirements of the corresponding EU directive or regulation.
EN 15491:2007 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Ethanol as a blending component for petrol - Determination of total acidity - Colour indicator titration methodEthanol comme base de mélange a l'essence - Détermination de l'acidité totale - Méthode de titrage par indicateur coloréEthanol zur Verwendung als Blendkomponente in Ottokraftstoff - Bestimmung der Gesamtsäurezahl - Farbindikator-TitrationTa slovenski standard je istoveten z:EN 15491:2007SIST EN 15491:2007en75.160.20Liquid fuels71.080.60Alkoholi. EtriAlcohols. EthersICS:SLOVENSKI
STANDARDSIST EN 15491:200701-december-2007
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 15491August 2007ICS 71.080.60 English VersionEthanol as a blending component for petrol - Determination oftotal acidity - Colour indicator titration methodEthanol comme base de mélange à l'essence -Détermination de l'acidité totale - Méthode de titrage parindicateur coloréEthanol zur Verwendung als Blendkomponente inOttokraftstoff - Bestimmung der Gesamtsäurezahl -Farbindikator-TitrationThis European Standard was approved by CEN on 30 June 2007.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the CEN Management Centre or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as theofficial versions.CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2007 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 15491:2007: E
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