SIST EN 15769:2009

Ethanol as a blending component of petrol - Determination of appearance - Visual method

This European Standard specifies a procedure for the determination of appearance of ethanol by visual method. The method enables to determine colour and limpidity of ethanol.
NOTE   Automotive fuel standards require a fuel to be clear and bright, meaning absent of particles, respectively absent of haziness. For this document that requirement is combined into a limpidity requirement.

Ethanol zur Verwendung als Blendkomponente in Ottokraftstoff - Bestimmung des Aussehens - Visuelle Begutachtung

Diese Europäische Norm legt das Verfahren zur Bestimmung des Aussehens durch visuelle Prüfung für
Ethanol fest. Dieses Verfahren ermöglicht die Bestimmung der Farbe und der Trübungsfreiheit für Ethanol.
ANMERKUNG Normen für Kraftstoff für Kraftfahrzeuge machen es erforderlich, dass ein Kraftstoff durchsichtig und
klar ist, d. h. dass keine Partikel enthalten sind bzw. er trübungsfrei ist. Für dieses Dokument wurden diese beiden
Anforderungen in der Anforderung Trübungsfreiheit vereint.

Éthanol comme base de mélange à l'essence - Détermination de l'aspect - Méthode visuelle

La présente Norme européenne prescrit une méthode visuelle de détermination de l‘aspect de l’éthanol.
La méthode permet de déterminer la couleur et la limpidité de l’éthanol.
NOTE Les normes de carburants pour automobiles exigent que le carburant soit clair et limpide, ce qui signifie
respectivement sans particules et sans trouble. Dans ce document, cette double exigence est spécifiée par la limpidité.

Etanol kot komponenta za dodajanje motornemu bencinu - Določevanje videza - Vizualna metoda

General Information

• Status: Published
• Publication Date: 09-Jun-2009
• Withdrawal Date: 05-Apr-2007
• 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: 12-May-2009
• Due Date: 17-Jul-2009
• Completion Date: 10-Jun-2009
• Ref Project: EN 15769:2009 - Ethanol as a blending component of petrol - Determination of appearance - Visual method

Overview

EN 15769:2009 - "Ethanol as a blending component of petrol - Determination of appearance - Visual method" (CEN) defines a simple visual procedure to assess the appearance of ethanol intended for use as a petrol blending component. The standard specifies how to judge colour and limpidity (clarity/absence of turbidity) by direct comparison with water, supporting compliance with automotive fuel requirements for clear, particle‑free fuels.

Key topics

• Scope: Visual assessment method for ethanol appearance (colour and limpidity).
• Principle: Compare the ethanol sample with analytical‑grade water against both a white and a black background, observing along the length of the sample cylinder.
• Apparatus: Colourless glass cylinders (40–60 cm height, 20–40 mm diameter); white and black background sheets; analytical water conforming to EN ISO 3696 (grade 3).
• Sampling & storage: Collect 500 ml samples in glass, Teflon- or silicon-capped bottles; store at room temperature away from direct sunlight.
• Procedure: Fill one cylinder with the sample to ~40 cm depth and a second with water to the same height; place on white background, observe from above, repeat on black background; assess colour and turbidity by visual comparison.
• Reporting: Record whether the sample is clear (limpid) or turbid, and colourless or coloured, and include reference to EN 15769, sample identification, test date and any deviations.
• Performance note: Round‑robin data in the standard indicate colour detection at ~0.5–2 ppm (50 % at 0.5 ppm, 100 % at 2 ppm) and turbidity detection at 50 ppm (100 %).

Applications

• Quality control in ethanol production and distribution for fuel blending.
• Incoming inspection of ethanol batches for petrol blending plants.
• Verification of supplier conformity with automotive fuel appearance requirements.
• Regulatory and compliance testing where a rapid, low‑cost visual check is sufficient before more advanced analysis.

Who should use it: fuel producers, ethanol suppliers, blending facilities, independent testing laboratories, and regulatory inspectors needing a standardized, reproducible visual method to screen ethanol appearance prior to blending with petrol.

Related standards

• EN ISO 3696 - Water for analytical laboratory use (reference for water quality in this method).
• European Commission Regulation (EC) No 625/2003, Annex IV - Community analysis methods for neutral alcohol (related method for colour/clarity).
• AOAC methods (spirit/liqueur appearance methods) - historical methods from which EN 15769 was derived.

Keywords: EN 15769:2009, ethanol appearance, petrol blending, visual method, colour, limpidity, turbidity, fuel quality, automotive fuel standards.

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Ethanol zur Verwendung als Blendkomponente in Ottokraftstoff - Bestimmung des Aussehens - Visuelle BegutachtungÉthanol comme base de mélange à l'essence - Détermination de l'aspect - Méthode visuelleEthanol as a blending component of petrol - Determination of appearance - Visual method75.160.20Liquid fuels71.080.60Alkoholi. EtriAlcohols. EthersICS:Ta slovenski standard je istoveten z:EN 15769:2009SIST EN 15769:2009en,fr,de01-julij-2009SIST EN 15769:2009SLOVENSKI
STANDARD
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 15769April 2009ICS 17.140.30; 93.100 English VersionEthanol as a blending component of petrol - Determination ofappearance - Visual methodÉthanol comme base de mélange à l'essence -Détermination de l'aspect - Méthode visuelleEthanol zur Verwendung als Blendkomponente inOttokraftstoff - Bestimmung des Aussehens - VisuelleBegutachtungThis European Standard was approved by CEN on 19 March 2009.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:
Avenue Marnix 17,
B-1000 Brussels© 2009 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 15769:2009: ESIST EN 15769:2009

2Contents Page Foreword .3 1 Scope .4 2 Normative references .4 3 Terms and definitions .4 4 Principle .4 5 Apparatus .4 6 Sampling .5 7 Procedure .5 8 Interpretation .5 9 Expression of results .5 10 Statistical data .5 11 Test report .5 Bibliography .7
3 Foreword This document (EN 15769:2009) 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 October 2009, and conflicting national standards shall be withdrawn at
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