SIST EN 15492:2012

Ethanol as a blending component for petrol - Determination of inorganic chloride and sulfate content - Ion chromatographic method

This European Standard specifies an ion chromatographic (IC) method for the determination of inorganic chloride content in ethanol from about 1 mg/kg to about 30 mg/kg and of sulfate content in ethanol from about 1 mg/kg to about 20 mg/kg.
NOTE   Sulfate content can be determined from 0,5 mg/kg to 1,0 mg/kg. However, the precision was not established as no samples with sulfate content in this range were included in the interlaboratory test.
WARNING - Use of this method may involve hazardous equipment, materials and operations. This method does not purport to address to all of the safety problems associated with its use, but it is the responsibility of the user to search and establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

Ethanol zur Verwendung als Blendkomponente in Ottokraftstoff - Bestimmung des Gehaltes an anorganischem Chlor und Sulfat - Ionenchromatographie

Diese Europäische Norm legt ein ionenchromatographisches Verfahren für die Bestimmung des anorga-nischen Chlorgehaltes (Chlorid) in Ethanol im Bereich von etwa 1 mg/kg bis etwa 30 mg/kg und des Gehaltes an Sulfat in Ethanol im Bereich von etwa 1 mg/kg bis etwa 20 mg/kg fest.
ANMERKUNG   Sulfatgehalte können von 0,5 mg/kg bis 1,0 mg/kg bestimmt werden. Trotzdem kann die Präzision dafür nicht angegeben werden, da entsprechende Proben mit Sulfatgehalten aus diesen Bereichen nicht Teil des Ringversuchs waren.
WARNUNG — Die Anwendung dieses Verfahrens kann den Einsatz gefährlicher Stoffe, Arbeitsgänge und Geräte mit sich bringen. Dieses Verfahren gibt nicht vor, alle mit seiner Anwendung verbundenen Sicherheitsprobleme anzusprechen. Der Anwender dieses Verfahrens ist dafür verantwortlich, vorher angemessene Maßnahmen zu ergreifen und die Anwendbarkeit einschränkender Vorschriften zu ermitteln.

Éthanol comme base de mélange à l'essence - Détermination de la teneur en chlorures minéraux et en sulfates - Méthode par chromatographie ionique

La présente Norme européenne prescrit une méthode de chromatographie ionique (IC) pour le dosage dans
l’éthanol des chlorures minéraux d’environ 1 mg/kg à environ 30 mg/kg et des sulfates d’environ 1 mg/kg à
environ 20 mg/kg.
NOTE La teneur en sulfates peut être déterminée de 0,5 mg/kg à 1,0 mg/kg. Cependant, la fidélité n’a pas été établie
étant donné qu’il n’y avait dans l’essai interlaboratoires aucun échantillon avec des teneurs en sulfates dans cet intervalle.
AVERTISSEMENT — L'utilisation de la présente Norme européenne peut impliquer l'intervention de
produits, d'opérations et d'équipements à caractère dangereux. La présente Norme européenne n'est
pas censée aborder tous les problèmes de sécurité concernés par son usage. Il est de la
responsabilité de l'utilisateur de consulter et d'établir des règles de sécurité et d'hygiène appropriées
et de déterminer l'applicabilité des restrictions réglementaires avant utilisation.

Etanol kot komponenta za dodajanje motornemu bencinu - Določevanje anorganskega klorida in sulfata - Ionska kromatografska metoda

Ta evropski standard določa ionsko kromatografsko (IC) metodo za določevanje vsebnosti anorganskega klorida od 1,0 mg/kg do približno 30,0 mg/kg in vsebnosti sulfata od 1,0 mg/kg do približno 20,0 mg/kg.

General Information

• Status: Published
• Public Enquiry End Date: 14-Jul-2010
• Publication Date: 08-Feb-2012
• ICS: 71.080.60 - Alcohols. Ethers
• ICS: 75.160.20 - Liquid fuels
• Technical Committee: NAD - Petroleum products, lubricants and related products
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 30-Jan-2012
• Due Date: 05-Apr-2012
• Completion Date: 09-Feb-2012
• Ref Project: EN 15492:2012 - Ethanol as a blending component for petrol - Determination of inorganic chloride and sulfate content - Ion chromatographic method

Relations

• Replaces: SIST EN 15492:2009 - Ethanol as a blending component for petrol - Determination of inorganic chloride and sulfate content - Ion chromatographic method
• Effective Date: 01-Mar-2012

Overview

SIST EN 15492:2012 is a European Standard developed by CEN that specifies an ion chromatographic (IC) method for determining the inorganic chloride and sulfate content in ethanol used as a blending component in petrol. The method enables the accurate quantification of chloride in the range of approximately 1 mg/kg to 30 mg/kg and sulfate from about 1 mg/kg to 20 mg/kg. It is designed to ensure the quality and safety of ethanol fuels by detecting potentially corrosive inorganic ions that could affect fuel performance and storage.

This standard replaces EN 15492:2008 and reflects updated calibration, precision parameters, and procedural improvements developed through interlaboratory studies. The analytical technique uses ion chromatography to separate and quantify chloride and sulfate ions in ethanol samples with precise calibration and controlled sample preparation.

Key Topics

• Scope and Application
  Focuses on ion chromatographic analysis of inorganic chloride and sulfate ions in ethanol blending components, essential for fuel quality control.

• Sample Preparation
  Ethanol samples are evaporated to dryness, with residues dissolved in water before chromatographic injection. Careful avoidance of contamination is emphasized by using clean glassware and polypropylene pipettes.

• Calibration and Quantification
  Calibration solutions with known chloride and sulfate concentrations are prepared daily using analytical grade reagents. Measurement involves comparing chromatographic peak areas of samples against calibration curves.

• Analytical Apparatus
  Includes ion chromatograph with injection system, pumping system, anion exchange column, conductivity detector, and data integrator for recording peak data.

• Accuracy and Precision
  Detailed repeatability and reproducibility parameters are provided, ensuring reliable and consistent measurement results across different laboratories and operators.

• Safety Considerations
  Warning notes regarding hazardous equipment and materials highlight the necessity for users to follow appropriate safety protocols and regulatory guidelines.

Applications

• Fuel Quality Assurance
  SIST EN 15492:2012 supports the verification of ethanol purity for petrol blending, preventing corrosion and operational issues linked to chloride and sulfate contaminants.

• Regulatory Compliance
  Assists ethanol producers and fuel manufacturers in meeting European regulations and national standards concerning inorganic ion content in fuel components.

• Environmental and Industrial Monitoring
  Enables laboratories to implement standardized testing methods for ethanol used in various industrial sectors, including automotive fuel production and renewable energy solutions.

• Research and Development
  Provides a reliable analytical technique for investigating the impacts of inorganic contaminants on ethanol fuel stability and performance.

Related Standards

• EN 15376:2011
  Specification for ethanol as a blending component for petrol, encompassing broader quality and purity criteria.

• EN 15486:2007
  Determination of sulfur content in ethanol using ultraviolet fluorescence, relevant for comprehensive sulfur and sulfate analysis.

• EN ISO 1042
  Laboratory glassware specifications important for ensuring volumetric accuracy in sample and reagent preparation.

• EN ISO 3170
  Guidelines for manual sampling of petroleum liquids, applicable to ethanol sampling protocols.

• EN ISO 3675 and EN ISO 12185
  Density determination methods for liquid petroleum products, utilized for accurate calculations of ion content in ethanol.

Summary

SIST EN 15492:2012 provides an internationally recognized, precise ion chromatographic method for determining inorganic chloride and sulfate content in ethanol fuels. Adhering to this standard enhances quality control, supports regulatory compliance, and promotes consistent and safe use of ethanol blending components in petrol production. Its detailed procedures and analytical requirements equip laboratories with the necessary tools to achieve reliable monitoring of key inorganic impurities in ethanol fuel, underpinning the broader goals of fuel safety and environmental sustainability.

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.HEthanol zur Verwendung als Blendkomponente in Ottokraftstoff - Bestimmung des Gehaltes an anorganischem Chlor und Sulfat - IonenchromatographieÉthanol comme base de mélange à l'essence - Détermination de la teneur en chlorures minéraux et en sulfates - Méthode par chromatographie ioniqueEthanol as a blending component for petrol - Determination of inorganic chloride and sulfate content - Ion chromatographic method75.160.20Liquid fuels71.080.60Alkoholi. EtriAlcohols. EthersICS:Ta slovenski standard je istoveten z:EN 15492:2012SIST EN 15492:2012en,de01-marec-2012SIST EN 15492:2012SLOVENSKI
STANDARDSIST EN 15492:20091DGRPHãþD

EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 15492
January 2012 ICS 71.080.60; 75.160.20 Supersedes EN 15492:2008English Version
Ethanol as a blending component for petrol - Determination of inorganic chloride and sulfate content - Ion chromatographic method
Éthanol comme base de mélange à l'essence - Détermination de la teneur en chlorures minéraux et en sulfates - Méthode par chromatographie ionique
Ethanol zur Verwendung als Blendkomponente in Ottokraftstoff - Bestimmung des Gehaltes an anorganischem Chlor und Sulfat - Ionenchromatographie This European Standard was approved by CEN on 26 November 2011.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC 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 translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, 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, Turkey and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre:
Avenue Marnix 17,
B-1000 Brussels © 2012 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 15492:2012: ESIST EN 15492:2012

NOTE Sulfate content can be determined from 0,5 mg/kg to 1,0 mg/kg. However, the precision was not established as no samples with sulfate content in this range were included in the interlaboratory test. WARNING — Use of this method may involve hazardous equipment, materials and operations. This method does not purport to address to all of the safety problems associated with its use, but it is the responsibility of the user to search and establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 15486:2007, Ethanol as a blending component for petrol — Determination of sulfur content — Ultraviolet fluorescence method EN ISO 1042, Laboratory glassware — One-mark volumetric flasks (ISO 1042) EN ISO 3170, Petroleum liquids — Manual sampling (ISO 3170) EN ISO 3675, Crude petroleum and liquid petroleum products — Laboratory determination of density — Hydrometer method (ISO 3675) EN ISO 3696, Water for analytical laboratory use — Specification and test methods (ISO 3696) EN ISO 12185, Crude petroleum and petroleum products — Determination of density — Oscillating U-tube method (ISO 12185) 3 Principle A test portion of ethanol sample is evaporated on a water bath. The dry residue is dissolved in water. The chloride and sulfate ion contents are determined by comparing the peak area in the chromatogram of the aqueous solution of the test portion with the curve of the calibration standards. The calibration standards are prepared from suitable compounds in aqueous solution. 4 Reagents Use only reagents of recognized analytical grade, such as “Ionic Chromatography grade”, unless otherwise specified. 4.1 Sodium chloride (NaCl), molar mass 58,44 g/mol. 4.2 Sulfuric acid (H2SO4), aqueous solution at 0,1 mol/l. The concen
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