Petroleum products - Determination of low lead contents in gasolines - Wavelength-dispersive X-ray fluorescence spectrometry (XRF)

This European Standard specifies a method for the determination of the lead content of gasolines with a lead concentration from 4 mg/l to 25 mg/l.
NOTE   For the purpose of this European Standard, the term "% (V/V)" is used to represent the volume fraction.
WARNING: The use of this European Standard can 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.

Mineralölerzeugnisse - Bestimmung niedriger Bleigehalte in Kraftstoffen - Wellenlängendispersive Röntgenfluoreszenz-Analyse (RFA)

Diese Europäische Norm legt ein Verfahren zur Bestimmung des Bleigehaltes von Ottokraftstoffen mit einer Blei-konzentration von 4 mg/l bis 25 mg/l fest.
ANMERKUNG   In dieser Europäischen Norm wird das Symbol ¿% (V/V)" verwendet, um den ¿Volumenanteil in %" zu beschreiben.
WARNUNG - Die Anwendung dieser Europäischen Norm kann den Einsatz gefährlicher Stoffe, Arbeitsgänge und Geräte mit sich bringen. Diese Norm gibt nicht vor, alle mit ihrer Anwendung verbundenen Sicherheitsprobleme anzusprechen. Der Anwender dieser Norm ist dafür verantwortlich, vorher angemessene Maßnahmen zu ergreifen und die Anwendbarkeit einschränkender Vorschriften zu ermitteln.

Produits pétroliers - Détermination des faibles teneurs en plomb dans les essences pour moteurs - Spectrométrie de fluorescence de rayons x dispersive en longueur d'onde (FRX)

La présente Norme Européenne décrit une méthode de dosage du plomb dans les essences pour moteurs pour des concentrations comprises entre 4 mg/l et 25 mg/l.
NOTE   Pour les besoins de la présente Norme Européenne, l'expression "% (V/V)" est utilisée pour désigner les fractions volumiques.
AVERTISSEMENT   L'utilisation de la présente Norme Européenne implique 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.

Naftni proizvodi - Določevanje nizkih količin svinca v bencinih - Valovno disperzivna rentgensko fluoroscenčna spektrometrija

General Information

Status
Published
Publication Date
16-Jul-2002
Withdrawal Date
30-Jan-2003
ICS
75.160.20 - Liquid fuels
Technical Committee
CEN/TC 19 - Petroleum products, lubricants and related products
Drafting Committee
CEN/TC 19/WG 16 - Low lead in gasoline
Current Stage
9093 - Decision to confirm - Review Enquiry
Start Date
04-Sep-2023
Completion Date
14-Apr-2025
Ref Project
SIST EN 13723:2002 - Petroleum products - Determination of low lead contents in gasolines - Wavelength-dispersive X-ray fluorescence spectrometry (XRF)

Overview

EN 13723:2002 is a European Standard developed by CEN that specifies a precise and reliable method for determining low lead contents in gasoline. Utilizing wavelength-dispersive X-ray fluorescence spectrometry (XRF), this method accurately measures lead concentrations within the range of 4 mg/l to 25 mg/l. This standard applies specifically to petroleum products and ensures consistent testing procedures across CEN member countries.

The method described in EN 13723:2002 is essential for monitoring and controlling lead levels in gasoline, supporting compliance with environmental regulations and fuel quality standards. The technique is based on the quantification of lead by comparing lead emission lines with a bismuth internal standard, providing high accuracy independent of the lead compound type or gasoline composition.

Key Topics

  • Scope and Applicability
    Covers determination of lead content in gasolines from 4 mg/l to 25 mg/l using wavelength-dispersive XRF, enabling trace-level analysis compliant with regulatory limits.

  • Principle of Measurement
    The gasoline sample is mixed with a bismuth internal standard and exposed to primary X-ray radiation. The Pb Lα and Bi Lα count rates are measured, and the lead content is calculated via a calibration graph built from prepared lead standards.

  • Chemicals and Reagents
    Use of analytical-grade chemicals including isooctane, toluene, kerosene, lead-2-ethylhexanoate, and certified bismuth standards as internal controls.

  • Instrumentation
    Requires a wavelength-dispersive XRF spectrometer with specific configurations (e.g., rhodium or molybdenum anode, helium purge, analyzing crystal lithium fluoride). Auxiliary lab equipment includes pipettes, volumetric and conical flasks, analytical balances, and fritted glass filters.

  • Calibration and Quality Control
    Establishment of calibration curves with lead stock solutions and internal standards is critical. Regular verification and recalibration ensure precision and reproducibility.

  • Safety Considerations
    Handling hazardous materials and operating complex equipment necessitate strict adherence to safety protocols and regulatory requirements.

Applications

  • Fuel Quality Control
    Enables gasoline producers and quality assurance laboratories to monitor lead levels accurately, ensuring compliance with environmental standards and legislation limiting lead additives in fuels.

  • Environmental Monitoring
    Assists regulatory agencies in enforcing restrictions on lead content to protect consumer health and reduce environmental pollution from vehicular emissions.

  • Research and Development
    Supports formulation improvements by providing precise lead content analytics during the development of unleaded and low-lead gasoline variants.

  • Standardized Testing
    Provides a harmonized method facilitating comparison of lead content data across EU and associated national laboratories, promoting consistent fuel quality benchmarking.

Related Standards

  • EN ISO 3170 - Petroleum liquids - Manual sampling

  • EN ISO 3171 - Petroleum liquids - Automatic pipeline sampling

  • Standards for sampling that ensure representative and consistent fuel samples for analysis according to EN 13723.

  • Other XRF Standards
    Related spectrometry standards may address different elements or concentration ranges in gasolines and petroleum products.

Keywords: EN 13723:2002, lead content determination, gasoline lead testing, wavelength-dispersive X-ray fluorescence, XRF spectrometry, petroleum products standard, low lead gasoline analysis, CEN standard, fuel quality control, environmental compliance, lead calibration, internal standard, bismuth standard, petroleum testing methods.

Frequently Asked Questions

EN 13723:2002 is a standard published by the European Committee for Standardization (CEN). Its full title is "Petroleum products - Determination of low lead contents in gasolines - Wavelength-dispersive X-ray fluorescence spectrometry (XRF)". This standard covers: This European Standard specifies a method for the determination of the lead content of gasolines with a lead concentration from 4 mg/l to 25 mg/l. NOTE For the purpose of this European Standard, the term "% (V/V)" is used to represent the volume fraction. WARNING: The use of this European Standard can 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 the determination of the lead content of gasolines with a lead concentration from 4 mg/l to 25 mg/l. NOTE For the purpose of this European Standard, the term "% (V/V)" is used to represent the volume fraction. WARNING: The use of this European Standard can 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 13723:2002 is classified under the following ICS (International Classification for Standards) categories: 75.160.20 - Liquid fuels. The ICS classification helps identify the subject area and facilitates finding related standards.

You can purchase EN 13723:2002 directly from iTeh Standards. The document is available in PDF format and is delivered instantly after payment. Add the standard to your cart and complete the secure checkout process. iTeh Standards is an authorized distributor of CEN standards.

Standards Content (Sample)


SLOVENSKI STANDARD
01-november-2002
1DIWQLSURL]YRGL'RORþHYDQMHQL]NLKNROLþLQVYLQFDYEHQFLQLK9DORYQR
GLVSHU]LYQDUHQWJHQVNRIOXRURVFHQþQDVSHNWURPHWULMD
Petroleum products - Determination of low lead contents in gasolines - Wavelength-
dispersive X-ray fluorescence spectrometry (XRF)
Mineralölerzeugnisse - Bestimmung niedriger Bleigehalte in Kraftstoffen -
Wellenlängendispersive Röntgenfluoreszenz-Analyse (RFA)
Produits pétroliers - Détermination des faibles teneurs en plomb dans les essences pour
moteurs - Spectrométrie de fluorescence de rayons x dispersive en longueur d'onde
(FRX)
Ta slovenski standard je istoveten z: EN 13723:2002
ICS:
75.160.20 7HNRþDJRULYD Liquid fuels
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN 13723
NORME EUROPÉENNE
EUROPÄISCHE NORM
July 2002
ICS 75.160.20
English version
Petroleum products - Determination of low lead contents in
gasolines - Wavelength-dispersive X-ray fluorescence
spectrometry (XRF)
Produits pétroliers - Détermination des faibles teneurs en Mineralölerzeugnisse - Bestimmung niedriger Bleigehalte in
plomb dans les essences pour moteurs - Spectrométrie de Kraftstoffen - Wellenlängendispersive Röntgenfluoreszenz-
fluorescence de rayons x dispersive en longueur d'onde Analyse (RFA)
(FRX)
This European Standard was approved by CEN on 5 April 2002.
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 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 Management Centre has the same status as the official
versions.
CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,
Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36  B-1050 Brussels
© 2002 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 13723:2002 E
worldwide for CEN national Members.

Contents
page
Foreword.3
1 Scope .4
2 Normative references .4
3 Principle.4
4 Chemicals and solvents.5
4.1 2,2,4-trimethylpentane (isooctane) .5
4.2 Toluene .5
4.3 Kerosene.5
4.4 Lead-2-ethylhexanoate .5
4.5 Triphenylbismuth or bismuth-2-ethylhexanoate .5
4.6 Ethylhexanoic acid .5
4.7 Blank solution .5
4.8 Lead stock solution .5
4.9 Bismuth internal standard solution .5
5 Apparatus .5
5.1 Wavelength-dispersive X-ray fluorescence spectrometer .5
5.2 One-mark pipettes. .6
5.3 Volumetric flasks .6
5.4 Conical flasks.6
5.5 Fritted glass filter.6
5.6 Analytical balance.6
6 Samples and sampling .6
7 Calibration solutions .6
7.1 Preparation of lead calibration solutions .6
7.2 Preparation of calibration solutions by addition of the internal standard.7
8 Calibration .7
8.1 General.7
8.2 Calibration graph .7
8.3 Checking.8
9 Procedure .8
10 Calculation.8
11 Expression of results .8
12 Precision.8
12.1 Repeatability.8
12.2 Reproducibility.8
13 Test report .9
Foreword
This document EN 13723:2002 has been prepared by Technical Committee CEN/TC 19 "Petroleum products,
lubricants and related products", the secretariat of which is held by NEN.
This European Standard shall be given the status of a national standard, either by publication of an identical text or
by endorsement, at the latest by January 2003, and conflicting national standards shall be withdrawn at the latest
by January 2003.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following
countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland,
France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain,
Sweden, Switzerland and the United Kingdom.
1 Scope
This European Standard specifies a method for the determination of the lead content of gasolines with a lead
concentration from 4 mg/l to 25 mg/l.
NOTE For the purpose of this European Standard, the term “% (V/V)” is used to represent the volume fraction.
WARNING: The use of this European Standard can 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 prio
...

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