EN 15721:2009

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.JUDILMHEthanol zur Verwendung als Blendkomponente in Ottokraftstoff - Bestimmung von höheren Alkoholen, Methanol und flüchtigen Verunreinigungen - Gaschromatographisches VerfahrenEthanol comme base de mélange à l'essence - Détermination de la teneur en alcools supérieurs, méthanol et impuretés volatiles - Méthode par chromatographie en phase gazeuseEthanol as a blending component for petrol - Determination of higher alcohols, methanol and volatile impurities - Gas chromatographic method75.160.20Liquid fuels71.080.60Alkoholi. EtriAlcohols. EthersICS:Ta slovenski standard je istoveten z:EN 15721:2009SIST EN 15721:2009en,fr,de01-junij-2009SIST EN 15721:2009SLOVENSKI
STANDARD
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 15721April 2009ICS 75.160.20 English VersionEthanol as a blending component for petrol - Determination ofhigher alcohols, methanol and volatile impurities - Gaschromatographic methodEthanol comme base de mélange à l'essence -Détermination de la teneur en alcools supérieurs, méthanolet impuretés volatiles - Méthode par chromatographie enphase gazeuseEthanol zur Verwendung als Blendkomponente inOttokraftstoff - Bestimmung von höheren Alkoholen,Methanol und flüchtigen Verunreinigungen -Gaschromatographisches VerfahrenThis European Standard was approved by CEN on 12 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 15721:2009: ESIST EN 15721:2009

Examples of chromatograms . 15 Bibliography . 20
Table 1 — Compounds for calibration, used as solvents and other related information Compound Attributed to group Calibration compounds: Methanol Methanol Higher alcohols Higher alcohols Higher alcohols Higher alcohols Higher alcohols Higher alcohols Impurity Impurity Impurity Propan-1-ol Butan-1-ol Butan-2-ol 2-Methylpropanol 2-Methylbutan-1-ol 3-Methylbutan-1-ol Ethanal (acetic aldehyde) Ethyl-ethanoate (ethyl acetate) 1,1-diethoxy ethane (acetal) Internal standards: Pentan-3-ol Internal standard for Procedure A 4-Mehylpentan-2-ol Internal standard for Procedure B Solvent: Ethanola Solvent a Ethanol is needed in Method "A" and "B" as a solvent for the calibration solutions. Therefore, this shall be extra pure ("UV quality"). 5 Apparatus
5.1 Gas chromatograph Gas chromatograph equipped with a Flame Ionization Detector (FID), a split injector and connected to a PC or other system permitting the recording of chromatograms and execution of quantitative calculations. SIST EN 15721:2009

Key
1 4-methylpentan-2-ol (retention time 16,996 min) 2 2-methylbutan-1-ol (retention time 18,255 min) 3 3-methylbutan-1-ol (retention time 18,346 min) Figure 1 — Typical chromatogram for calculation of column resolution SIST EN 1
...