Ethanol as a blending component for petrol - Determination of copper content - Graphite furnace atomic absorption spectrometric method

This standard specifies a procedure for the determination of copper content in ethanol from 0,07 mg/kg to 0,20 mg/kg using graphite furnace atomic absorption spectrometry.
NOTE   For the purpose of this document, the terms “% (m/m)” and "% (V/V)" are used to represent the mass fraction, respectively the volume fraction of a material.
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 to determine the applicability of regulatory limitations prior to use.

Ethanol zur Verwendung als Blendkomponente in Ottokraftstoff - Bestimmung des Kupfergehaltes - Graphitrohr-Atomabsorptionsspektrometrie

Diese Norm legt ein Verfahren zur Bestimmung des Kupfergehaltes in Ethanol von 0,07 mg/kg bis 0,20 mg/kg mittels Graphitrohrofen-Atomabsorptionsspektrometrie fest.
ANMERKUNG   Für die Zwecke dieser Europäischen Norm werden die Ausdrücke % (m/m) und % (V/V) zur Darstellung des Massenanteils bzw. Volumenanteils eines Materials verwendet.
WARNUNG  Bei der Anwendung dieser Norm können gefährliche Stoffe, Prozesse und Ausrüstungen auftreten. Diese Norm erhebt nicht den Anspruch, alle mit ihrer Anwendung verbundenen Sicherheitsprobleme zu behandeln. Der Anwender dieser Norm ist selbst dafür verantwortlich, vor der Anwendung die geeigneten Arbeitsschutz- und Arbeitssicherheitsverfahren festzulegen und die Anwendbarkeit von gesetzlichen Grenzwerten zu beurteilen.

Éthanol comme base de mélange à l'essence - Détermination de la teneur en cuivre - Méthode par spectrométrie d'absorption atomique avec four en graphite

Etanol kot komponenta za dodajanje motornemu bencinu – Določevanje vsebnosti bakra - Metoda atomske absorpcijske spektrometrije z grafitno kiveto

General Information

Status
Published
Publication Date
21-Aug-2007
Withdrawal Date
28-Feb-2008
ICS
71.080.60 - Alcohols. Ethers
 
75.160.20 - Liquid fuels
Technical Committee
CEN/TC 19 - Petroleum products, lubricants and related products
Drafting Committee
CEN/TC 19/WG 27 - Elemental analysis of petroleum and related products
Current Stage
9093 - Decision to confirm - Review Enquiry
Start Date
23-Mar-2012
Completion Date
23-Mar-2012
Directive
98/70/EC - Quality of petrol and diesel fuels (Dir. 93/12/EEC amendment)
Mandate
M/344 - Mandate to CEN on Ethanol as an oxygen extender to gasoline
Ref Project
SIST EN 15488:2007 - Ethanol as a blending component for petrol - Determination of copper content - Graphite furnace atomic absorption spectrometric method

Overview

EN 15488:2007 is a European standard established by CEN specifying a precise analytical method for determining copper content in ethanol used as a blending component for petrol. The method employs graphite furnace atomic absorption spectrometry (GFAAS) to measure copper concentrations ranging from 0.07 mg/kg to 0.20 mg/kg. Ensuring accurate copper detection in ethanol is critical to maintaining fuel quality and preventing corrosion or catalysis issues in petrol engines.

This standard defines detailed procedures for sample preparation, instrument calibration, and analysis, emphasizing accuracy, repeatability, and reproducibility. It also highlights safety considerations due to the use of hazardous reagents and equipment during testing.

Key Topics

  • Scope and Application: Establishes methods for quantifying copper in ethanol blending components for petrol at trace levels using GFAAS.
  • Principle: Copper is atomized in a graphite furnace; the absorption of light at 324.8 nm or 327.4 nm by copper atoms is measured, corrected for background interference, and compared against a calibration curve.
  • Instrumentation & Materials: Requires an atomic absorption spectrometer with graphite furnace and copper hollow cathode lamp, ultrapure reagents (ethanol, copper standards, nitric acid), argon gas, autosampler, and precision micropipettes.
  • Calibration & Sample Analysis: Preparation of calibration standards daily using copper solutions diluted in ethanol and precise pipetting of measured aliquots. Samples must be homogenized and analyzed in triplicate to ensure reliability.
  • Precision Metrics: Defines repeatability (r) and reproducibility (R) values based on interlaboratory studies, ensuring the method’s reliability across operators and labs.
  • Reporting: Results are reported in mg/kg copper content rounded to the nearest 0.002 mg/kg, with full reference to the standard and any procedural deviations documented.

Applications

EN 15488:2007 is essential for:

  • Fuel Quality Control: Verifying copper levels in ethanol used for petrol blending to prevent catalyst poisoning and engine corrosion.
  • Regulatory Compliance: Assisting laboratories and fuel producers in meeting European and national regulations for fuel additives and contaminants.
  • Research and Development: Supporting development of new ethanol blends and refining detection techniques for trace copper content.
  • Environmental Monitoring: Tracking trace metal contaminants in bioethanol to minimize environmental impact from fuel use.

Related Standards

  • EN ISO 3170: Petroleum liquids - Manual sampling methods, referenced for correct sample collection techniques.
  • EN ISO 3696: Water for analytical laboratory use – Specification, applicable for ensuring reagent and sample matrix purity.
  • Other CEN and ISO standards for fuel testing, atomic absorption spectroscopy, and trace metal analysis may complement EN 15488:2007 for comprehensive fuel quality assessment.

Keywords: EN 15488:2007, copper determination, ethanol blending component, petrol fuel quality, graphite furnace atomic absorption spectrometry, GFAAS method, trace copper analysis, fuel additive testing, ethanol copper content, European fuel standards, copper contamination in bioethanol.

Frequently Asked Questions

EN 15488:2007 is a standard published by the European Committee for Standardization (CEN). Its full title is "Ethanol as a blending component for petrol - Determination of copper content - Graphite furnace atomic absorption spectrometric method". This standard covers: This standard specifies a procedure for the determination of copper content in ethanol from 0,07 mg/kg to 0,20 mg/kg using graphite furnace atomic absorption spectrometry. NOTE For the purpose of this document, the terms “% (m/m)” and "% (V/V)" are used to represent the mass fraction, respectively the volume fraction of a material. 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 to determine the applicability of regulatory limitations prior to use.

This standard specifies a procedure for the determination of copper content in ethanol from 0,07 mg/kg to 0,20 mg/kg using graphite furnace atomic absorption spectrometry. NOTE For the purpose of this document, the terms “% (m/m)” and "% (V/V)" are used to represent the mass fraction, respectively the volume fraction of a material. 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 to determine the applicability of regulatory limitations prior to use.

EN 15488:2007 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 15488:2007 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.

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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 copper content - Graphite furnace atomic absorption spectrometric methodMHÉthanol comme base de mélange a l'essence - Détermination de la teneur en cuivre - Méthode par spectrométrie d'absorption avec four en graphiteEthanol zur Verwendung als Blendkomponente in Ottokraftstoff - Bestimmung des Kupfergehaltes - Graphitrohr-Atomabsorptions-SpektrometrieTa slovenski standard je istoveten z:EN 15488:2007SIST EN 15488:2007en75.160.20Liquid fuels71.080.60Alkoholi. EtriAlcohols. EthersICS:SLOVENSKI
STANDARDSIST EN 15488:200701-december-2007

EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 15488August 2007ICS 71.080.60 English VersionEthanol as a blending component for petrol - Determination ofcopper content - Graphite furnace atomic absorptionspectrometric methodÉthanol comme base de mélange à l'essence -Détermination de la teneur en cuivre - Méthode parspectrométrie d'absorption atomique avec four en graphiteEthanol zur Verwendung als Blendkomponente inOttokraftstoff - Bestimmung des Kupfergehaltes -Graphitrohr-AtomabsorptionsspektrometrieThis 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 15488:2007: E

Example of thermal program of the graphite furnace.10 Bibliography.11

transmittance T ratio of the radiant power transmitted by a material to the radiant power incident upon it 3.3
absorbance A logarithm to the base 10 of the reciprocal of the transmittance NOTE Can be derived by the following equation: A = log (1/T) = -log (T) (1) 3.4 integrated absorbance Ai integrated area under the absorbance peak generated by the atomic absorption spectrometer
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