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

Revision of EN 15492:2008 to extend the range for chloride determination to 1,0 mg/kg or below

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
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
30-Jan-2012
Due Date
05-Apr-2012
Completion Date
09-Feb-2012

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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
SIST EN 15492:2012
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

EN 15492:2012 (E) 2 Contents Page Foreword ..............................................................................................................................................................31 Scope ......................................................................................................................................................42 Normative references ............................................................................................................................43 Principle ..................................................................................................................................................44 Reagents .................................................................................................................................................45 Apparatus ...............................................................................................................................................56 Sampling .................................................................................................................................................67 Preparation of calibration solutions ....................................................................................................67.1 Intermediate calibration solutions .......................................................................................................67.2 Calibration solutions .............................................................................................................................68 Preparation of apparatus ......................................................................................................................78.1 Setting up the instrument .....................................................................................................................78.2 Calibration ..............................................................................................................................................79 Procedure ...............................................................................................................................................89.1 Sample preparation ...............................................................................................................................89.2 Sample analysis .....................................................................................................................................810 Calculations ............................................................................................................................................911 Expression of results ............................................................................................................................912 Precision .................................................................................................................................................912.1 General ....................................................................................................................................................912.2 Repeatability, r .......................................................................................................................................912.3 Reproducibility, R ............................................................................................................................... 1013 Test report ........................................................................................................................................... 10Bibliography ..................................................................................................................................................... 11 SIST EN 15492:2012

EN 15492:2012 (E) 3 Foreword This document (EN 15492:2012) has been prepared by Technical Committee CEN/TC 19 “Gaseous and liquid fuels, lubricants and related products of petroleum, synthetic and biological origin”, 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 July 2012, and conflicting national standards shall be withdrawn at the latest by July 2012. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 15492:2008. The method described in this document was originally based on a method from a European Regulation on wine [1]. This method has been developed and revised in 2008 to suit the needs as expressed in the ethanol specification (EN 15376:2011 [2]), also drafted by CEN/TC 19. The precision and range of application for both inorganic chloride and sulfate have again been updated based on a second interlaboratory study done by CEN/TC 19/WG 27 on “Elemental analysis”. Small parts of the procedure have been updated according to laboratory practice and a density correction has been included in order to be able to report the result of the test in mass fraction. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: 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. SIST EN 15492:2012

EN 15492:2012 (E) 4 1 Scope 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. 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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