CEN/TR 15993:2018

SLOVENSKI STANDARD
01-junij-2018
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SIST-TP CEN/TR 15993:2013
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Automotive fuels - Ethanol (E85) automotive fuel - Background to the parameters
required and their respective limits and determination
Kraftstoffe für Kraftfahrzeuge - Ethanol (E85) Fahrzeugkraftstoff - Hintergrund über die
geforderten Parameter und ihre entsprechenden Grenzen und Bestimmung
Carburants pour automobiles - Ethanol (E85) carburants pour automobiles - Historique
sur la définition des paramètres requis, de leurs limites et de leur détermination
respectives
Ta slovenski standard je istoveten z: CEN/TR 15993:2018
ICS:
71.080.60 Alkoholi. Etri Alcohols. Ethers
75.160.20 7HNRþDJRULYD Liquid fuels
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

CEN/TR 15993
TECHNICAL REPORT
RAPPORT TECHNIQUE
March 2018
TECHNISCHER BERICHT
ICS 75.160.20; 71.080.60 Supersedes CEN/TR 15993:2013
English Version
Automotive fuels - Ethanol (E85) automotive fuel -
Background to the parameters required and their
respective limits and determination
Carburants pour automobiles - Ethanol (E85) Kraftstoffe für Kraftfahrzeuge - Ethanol (E85)
carburants pour automobiles - Historique sur la Fahrzeugkraftstoff - Hintergrund über die geforderten
définition des paramètres requis, de leurs limites et de Parameter und ihre entsprechenden Grenzen und
leur détermination respectives Bestimmung

This Technical Report was approved by CEN on 8 February 2018. It has been drawn up by the Technical Committee CEN/TC 19.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2018 CEN All rights of exploitation in any form and by any means reserved Ref. No. CEN/TR 15993:2018 E
worldwide for CEN national Members.

Contents Page
European foreword . 3
1 Scope . 4
2 Normative references . 4
3 Summary . 6
4 Historical context . 6
5 Task Forces . 7
5.1 The Ethanol (E85) automotive fuel Task Force . 7
5.2 The Ethanol Fuel Task Force . 9
6 The ethanol (E85) automotive fuel specification . 12
6.1 Parameters included . 12
6.2 Considerations on the parameters . 15
6.2.1 Denaturants . 15
6.2.2 RON/MON . 15
6.2.3 Ethanol content and higher alcohols . 16
6.2.4 Vapour pressure . 18
6.2.5 Density . 19
6.2.6 Sulfur content . 19
6.2.7 Oxidation stability . 20
6.2.8 Oxygenates content . 21
6.2.9 Phosphorus. 23
6.2.10 Water content . 24
6.2.11 Inorganic Chloride content . 25
6.2.12 Copper strip corrosion . 26
6.2.13 Total acidity . 26
6.2.14 Sulfate content . 26
6.2.15 Conductivity . 28
6.2.16 Additives . 29
6.2.17 Appearance . 29
6.2.18 Biologically sourced ethanol . 29
6.2.19 Guidelines . 30
6.3 Parameters considered and not included (anymore) in the draft specification . 30
6.3.1 Existent gum content (solvent washed) . 30
6.3.2 Copper content . 30
6.3.3 pHe. 31
6.3.4 High boiling components . 31
6.3.5 Chlorine as chlorides . 32
6.3.6 Lead . 32
7 Acknowledgements . 32
Bibliography . 33

European foreword
This document (CEN/TR 15993:2018) 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.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes CEN/TR 15993:2013.
The original Technical Report presented all decisions that led to CEN/TS 15293:2011 [1], when it was
developed from its predecessor [2]. This document now includes all decisions that have been made
within the Ethanol Fuel Task Force since 2011, following comments and further investigations leading
to the draft ethanol (E85) automotive fuel specification as a proposed European Standard
prEN 15293:2017.
1 Scope
This Technical Report explains the requirements and test methods for marketed and delivered ethanol
(E85) automotive fuel according to EN 15293. It provides background information on the final text of
the draft European standard and gives guidance and explanations to the producers, blenders, marketers
and users of ethanol (E85) automotive fuel.
It is applicable to ethanol (E85) for use in spark ignition engine vehicles designed to run on ethanol
(E85). Ethanol (E85) is a mixture of nominally 85 % ethanol and 15 % petrol, but it also includes the
possibility of having different 'seasonal grades' containing 50 % or more ethanol.
NOTE 1 This document is directly related to prEN 15293:2017 and will be updated if further revisions to the
standard take place.
NOTE 2 For the purposes of this document, the terms “% (m/m)” and “% (V/V)” are used to represent the mass
fraction, µ, and the volume fraction, φ, respectively.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements 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 228, Automotive fuels — Unleaded petrol — Requirements and test methods
EN 1601:1997, Liquid petroleum products — Unleaded petrol — Determination of organic oxygenate
compounds and total organically bound oxygen content by gas chromatography (O-FID)
EN 13016-1, Liquid petroleum products — Vapour pressure — Part 1: Determination of air saturated
vapour pressure (ASVP) and calculated dry vapour pressure equivalent (DVPE)
EN 13016-3, Liquid petroleum products — Vapour pressure — Part 3: Determination of vapour pressure
and calculated dry vapour pressure equivalent (DVPE) (Triple Expansion Method)
CEN/TS 15293:2011, Automotive fuels — Ethanol (E85) automotive fuel — Requirements and test
methods
prEN 15293:2017, Automotive fuels — Ethanol (E85) automotive fuel — Requirements and test methods
EN 15376, Automotive fuels — Ethanol as a blending component for petrol —Requirements and test
methods
EN 15485, Ethanol as a blending component for petrol — Determination of sulfur content — Wavelength
dispersive X-ray fluorescence spectrometric method
EN 15486, Ethanol as a blending component for petrol — Determination of sulfur content — Ultraviolet
fluorescence method
EN 15487, Ethanol as a blending component for petrol — Determination of phosphorus content —
Ammonium molybdate spectrometric method
EN 15488, Ethanol as a blending component for petrol — Determination of copper content — Graphite
furnace atomic absorption spectrometric method
EN 15489, Ethanol as a blending component for petrol — Determination of water content — Karl Fischer
coulometric titration method
EN 15490, Ethanol as a blending component for petrol — Determination of pHe
EN 15491, Ethanol as a blending component for petrol — Determination of total acidity — Colour
indicator titration method
EN 15492, Ethanol as a blending component for petrol — Determination of inorganic chloride and sulfate
content — Ion chromatographic method
EN 15691:2009, Ethanol as a blending component for petrol — Determination of dry residue (involatile
material) — Gravimetric method
EN 15692:2009, Ethanol as a blending component for petrol — Determination of water content — Karl
Fischer potentiometric titration method
EN 15721:2013, Ethanol as a blending component for petrol — Determination of higher alcohols,
methanol and other impurities — Gas chromatographic method
EN 15769, Ethanol as a blending component of petrol — Determination of appearance — Visual method
EN 16270:2015, Automotive fuels — Determination of high-boiling components including fatty acid
methyl esters in petrol and ethanol (E85) automotive fuel — Gas chromatographic method
EN 16761-1, Automotive fuels — Determination of methanol in automotive ethanol (E85) fuel by gas
chromatography — Part 1: Method using single column technique
EN 16761-2, Automotive fuels — Determination of methanol in automotive ethanol (E85) fuel by gas
chromatography —Part 2: Method using heart cut technique
EN ISO 2160, Petroleum products — Corrosiveness to copper — Copper strip test (ISO 2160)
EN ISO 3405:2000, Petroleum products — Determination of distillation characteristics at atmospheric
pressure (ISO 3405:2000)
EN ISO 5163, Petroleum products — Determination of knock characteristics of motor and aviation fuels —
Motor method (ISO 516
...