Ethanol as a blending component for petrol - Determination of phosphorus content - Ammonium molybdate spectrometric method

This standard specifies a procedure for the determination of phosphorus content measured as orthophosphate, in ethanol from 0,15 mg/l to 1,50 mg/l by ammonium molybdate spectrometric method. The phosphorus content is determined in aqueous solution after dissolution of the evaporation residue of the ethanol sample.
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 Phosphorgehaltes - Spektrometrisches Verfahren mit Ammoniummolybdat

Diese Europäische Norm legt ein Verfahren zur Bestimmung des Phosphorgehalts in Ethanol in einem Bereich von 0,15 mg/l bis 1,50 mg/l fest, bei dem Phosphor als Phosphat spektralphotometrisch mit Ammoniummolybdat bestimmt wird.
WARNUNG  Die Anwender dieses Dokuments sollten grundsätzlich mit der üblichen Laborpraxis vertraut sein. Dieses Dokument berücksichtigt nicht alle möglicherweise bei seiner Anwendung auftretenden Sicherheitsprobleme. Es liegt in der Verantwortung des Anwenders, Verhaltensregeln zur Sicherheit und Gesundheit festzulegen und deren Übereinstimmung mit den Bestimmungen aller europäischen und nationalen Regelungen sicherzustellen.

Éthanol comme base de mélange a l'essence - Détermination de la teneur en phosphore - Méthode spectrométrique au molybdate d'ammonium

La présente Norme européenne prescrit une méthode pour déterminer la teneur en phosphore dans l’éthanol, exprimée en masse d’orthophosphate, pour des teneurs comprises entre 0,15 mg/l et 1,50 mg/l, par spectrométrie au molybdate d’ammonium. La teneur en phosphore est déterminée en solution aqueuse après dissolution du résidu d’évaporation de l’échantillon d’éthanol.
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 vsebnosti fosforja - Spektrometrijska metoda z amonijevim molibdatom

General Information

Status
Published
Publication Date
24-Oct-2007
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
04-Oct-2007
Due Date
09-Dec-2007
Completion Date
25-Oct-2007

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SIST EN 15487:2007
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2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Ethanol as a blending component for petrol - Determination of phosphorus content - Ammonium molybdate spectrometric methodÉthanol comme base de mélange a l'essence - Détermination de la teneur en phosphore - Méthode spectrométrique au molybdate d'ammoniumEthanol zur Verwendung als Blendkomponente in Ottokraftstoff - Bestimmung des Phosphorgehaltes - Spektrometrisches Verfahren mit AmmoniummolybdatTa slovenski standard je istoveten z:EN 15487:2007SIST EN 15487:2007en75.160.20Liquid fuels71.080.60Alkoholi. EtriAlcohols. EthersICS:SLOVENSKI

STANDARDSIST EN 15487:200701-december-2007

EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 15487August 2007ICS 71.080.60 English VersionEthanol as a blending component for petrol - Determination ofphosphorus content - Ammonium molybdate spectrometricmethodÉthanol comme base de mélange à l'essence -Détermination de la teneur en phosphore - Méthodespectrométrique au molybdate d'ammoniumEthanol zur Verwendung als Blendkomponente inOttokraftstoff - Bestimmung des Phosphorgehaltes -Spektrometrisches Verfahren mit AmmoniummolybdatThis 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 15487:2007: E

EN 15487:2007 (E) 2 Contents Page Foreword..............................................................................................................................................................3 1 Scope......................................................................................................................................................4 2 Normative references............................................................................................................................4 3 Principle..................................................................................................................................................4 4 Reagents and materials........................................................................................................................4 5 Apparatus...............................................................................................................................................5 6 Samples and sampling..........................................................................................................................6 7 Calibration..............................................................................................................................................6 7.1 Preparation of calibration solutions....................................................................................................6 7.2 Colour development..............................................................................................................................6 7.3 Spectrometric measurement................................................................................................................6 7.4 Calibration regression line...................................................................................................................6 8 Procedure...............................................................................................................................................7 8.1 Dry residue.............................................................................................................................................7 8.2 Test portion............................................................................................................................................7 8.3 Colour development..............................................................................................................................7 8.3 Spectrometric measurement................................................................................................................7 9 Calculation..............................................................................................................................................7 10 Expression of results............................................................................................................................7 11 Precision.................................................................................................................................................8 11.1 Repeatability...........................................................................................................................................8 11.2 Reproducibility.......................................................................................................................................8 12 Test report..............................................................................................................................................8 Bibliography........................................................................................................................................................9

EN 15487:2007 (E) 3 Foreword This document (EN 15487:2007) 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 February 2008, and conflicting national standards shall be withdrawn at the latest by February 2008. The method described in this document is based on EN ISO 6878 [1] and a method from a European Regulation on wine [2]. 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, 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.

EN 15487:2007 (E) 4 1 Scope This standard specifies a procedure for the determination of phosphorus content measured as orthophosphate, in ethanol from 0,15 mg/l to 1,50 mg/l by ammonium molybdate spectrometric method. The phosphorus content is determined in aqueous solution after dissolution of the evaporation residue of the ethanol sample. 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. 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 ISO 3170, Petroleum liquids — Manual sampling (ISO 3170:2004) EN ISO 3696, Water for analytical laboratory use – Specification and test methods (ISO 3696:1987) 3 Principle After evaporation of the ethanol sample, the dry residue is dissolved in water. The aqueous solution is treated with an acid solution containing molybdate and antimony ions to obtain an antimony phosphomolybdate complex. The complex is then treated with ascorbic acid to form a strongly coloured molybdenum blue complex. The content of phosphorus is obtained by measuring the absorbance of the complex at 880 nm. 4 Reagents and materials 4.1 All reagents shall be of analytical reagent grade or of higher purity. 4.2 Water, for analytical laboratory use, conforming to grade 3 of ISO 3696. 4.3 Sulphuric acid solution, c(H2SO4) ≈ 9 mol/l Add 500 ml ± 5 ml water (4.2) to a 2

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