CEN/TR 15993:2013
(Main)Automotive fuels - Ethanol (E85) automotive fuel - Background to the parameters required and their respective limits and determination
Automotive fuels - Ethanol (E85) automotive fuel - Background to the parameters required and their respective limits and determination
This Technical Report explains the requirements and test methods for marketed and delivered ethanol (E85) automotive fuel according to CEN/TS 15293. It provides background information to judge the (approval of the) final text of the standard and gives guidance and explanations to the producers, blenders, marketers and users of ethanol (E85) automotive fuel.
NOTE 1 This document is directly related to the pending revision of CEN/TS 15293:2011 and will be updated once further publications 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.
Kraftstoffe für Kraftfahrzeuge - Ethanol-Kraftstoff (E85) - Hintergrund der geforderten Parameter und deren jeweiligen Grenzwerte und Bestimmung
Carburants pour automobiles - Essence pour automobile Ethanol (E85) - Informations sur les paramètres requis et leurs limites et détermination respectives
Goriva za motorna vozila - Gorivo etanol (E85) za motorna vozila - Ozadje zahtevanih parametrov in njihovih omejitev ter določb
To tehnično poročilo razlaga zahteve in preskusne metode za trženo in dostavljeno gorivo etanol (E85) za motorna vozila v skladu s standardom CEN/TS 15293 [3]. Zagotavlja dodatne informacije za oceno (odobritve) končnega besedila standarda ter podaja navodila in pojasnila za proizvajalce, pripravljavce mešanic, trgovce in uporabnike goriva etanol (E85) za motorna vozila.
General Information
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Standards Content (Sample)
SLOVENSKI STANDARD
01-april-2013
1DGRPHãþD
SIST-TP CEN/TR 15993:2010
*RULYD]DPRWRUQDYR]LOD*RULYRHWDQRO ( ]DPRWRUQDYR]LOD2]DGMH
]DKWHYDQLKSDUDPHWURYLQQMLKRYLKRPHMLWHYWHUGRORþE
Automotive fuels - Ethanol (E85) automotive fuel - Background to the parameters
required and their respective limits and determination
Kraftstoffe für Kraftfahrzeuge - Ethanol-Kraftstoff (E85) - Hintergrund für die geforderten
Parameter und deren jeweiligen Grenzwerte und Bestimmung
Carburants pour automobiles - Essence pour automobile Ethanol (E85) - Informations
sur les paramètres requis et leurs limites et détermination respectives
Ta slovenski standard je istoveten z: CEN/TR 15993:2013
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.
TECHNICAL REPORT
CEN/TR 15993
RAPPORT TECHNIQUE
TECHNISCHER BERICHT
February 2013
ICS 75.160.20; 71.080.60 Supersedes CEN/TR 15993:2010
English Version
Automotive fuels - Ethanol (E85) automotive fuel - Background
to the parameters required and their respective limits and
determination
Carburants pour automobiles - Essence pour automobile Kraftstoffe für Kraftfahrzeuge - Ethanol-Kraftstoff (E85) -
Ethanol (E85) - Informations sur les paramètres requis et Hintergrund der geforderten Parameter und deren
leurs limites et détermination respectives jeweiligen Grenzwerte und Bestimmung
This Technical Report was approved by CEN on 21 May 2011. 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, 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
© 2013 CEN All rights of exploitation in any form and by any means reserved Ref. No. CEN/TR 15993:2013: E
worldwide for CEN national Members.
Contents Page
Foreword . 3
1 Scope . 4
2 Summary of the ethanol fuel (E85) taskforce work . 4
3 Record of the work to date . 4
3.1 Context . 4
3.2 The Ethanol (E85) automotive fuel Task Force . 5
3.3 Planning. 7
4 The draft ethanol (E85) automotive fuel specification . 8
4.1 Parameters included . 8
4.2 Considerations on the parameters . 9
4.2.1 Denaturants . 9
4.2.2 RON MON . 9
4.2.3 Ethanol content and higher alcohols . 10
4.2.4 Vapour pressure . 12
4.2.5 Density . 13
4.2.6 Sulfur content . 13
4.2.7 Oxidation stability . 14
4.2.8 Existent gum content (solvent washed) . 14
4.2.9 Oxygenates content . 14
4.2.10 Phosphorus . 16
4.2.11 Water content . 16
4.2.12 Chloride content . 17
4.2.13 Copper strip corrosion . 18
4.2.14 Total acidity . 18
4.2.15 Copper content . 18
4.2.16 Sulfate content . 19
4.2.17 Conductivity . 19
4.2.18 pHe . 20
4.2.19 High boiling components. 20
4.2.20 Additives . 20
4.2.21 Biologically sourced ethanol . 20
4.2.22 Guidelines . 21
4.3 Parameters considered and not included in the draft specification . 21
4.3.1 Appearance . 21
4.3.2 Chlorine as chlorides . 21
4.3.3 Lead . 21
5 Acknowledgement. 21
Bibliography. 22
Foreword
This document (CEN/TR 15993:2013) 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 [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights.
This document supersedes CEN/TR 15993:2010.
The original Technical Report presented all decisions that led to the proposed draft of prCEN/TS 15293:2009
in order to support the enquiry ballot. This document includes all decisions that have been made following
comments and further investigations leading to the effective publication of the ethanol (E85) automotive fuel
specification as CEN/TS 15293:2011. In addition, it presents all further details leading to the effective revision
of that CEN/TS into a full European Standard.
1 Scope
This Technical Report explains the requirements and test methods for marketed and delivered ethanol (E85)
automotive fuel according to CEN/TS 15293 [3]. It provides background information to judge the (approval of the)
final text of the standard and gives guidance and explanations to the producers, blenders, marketers and users of
ethanol (E85) automotive fuel.
NOTE 1 This document is directly related to CEN/TS 15293:2011 [3] and will be updated once further publications 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 Summary of the ethanol fuel (E85) taskforce work
At the 2007 plenary meeting, CEN/TC 19 decided to register the following work item as described in its active
programme of work: "Automotive fuels — Ethanol E85 — Requirements and test methods", under responsibility of
WG 21. The scope was to develop a CEN Standard on the basis of CWA 15293 [4]and existing related national
standards and to check for the most appropriate wording of the title of the standard.
The work on the specification was developed during a series of Ethanol (E85) automotive fuel Task Force (TF
E85) meetings between October 2007 and May 2009, and is presented by means of this Technical Report. The
draft standard, referenced by the identification CEN/TS 15293, comprised a set of properties and limit values to
define an adequate quality of the ethanol (E85) automotive fuel and recommendations for precautions to be taken
(see Table 1 in CEN/TS 15293:2011 [3]).
The draft standard was presented to CEN/TC 19/WG 21 in November 2008, together with a request to allow the
TF some additional time to finalise discussions and to study data that still needed to be generated from field
experience, both of refinery and ethanol production. Following that November meeting, a draft enquiry text was
developed and this was presented in January 2009 to WG 21 and thereafter to CEN/CCMC.
It should be noted that the draft standard had been considered on the basis of the ethanol blend component
specification EN 15376 2007 [2] and the former version of the EN 228 (unleaded petrol) standard [1]. Revision
discussion on those documents has been included in the discussions in the last two years. However,
CEN/TS 15293 still contains some pending issues, which are noted as such in the text.
Many of the test methods proposed by the test methods experts are being examined to determine their
applicability to ethanol (E85) fuel and to determine if their precision is sufficient to support the limit values
proposed. This activity is being undertaken in several other CEN working groups where the specialists in methods
are present.
An automatic link has been established between the gasoline and ethanol (EN 228 and EN 15376 respectively)
standards and the ethanol (E85) automotive fuel (CEN/TS 15293) standard so that modifications to one will be
coherent with the other.
3 Record of the work to date
3.1 Context
The European Commission is following a policy of promoting renewable energy use in Europe, and to this end
is encouraging the extension of automotive gasoline fuel with a proportion of renewably-sourced ethyl alcohol
(referred to in this document as ethanol).
In order to facilitate a transparent and stable market in ethanol, it is necessary to establish an ethanol (E85)
automotive fuel standard for Europe that will ensure a uniform high quality fuel for problem-free ethanol use as
a gasoline fuel.
To this end, the Comité Européen de Normalisation (CEN) Technical Committee 19, responsible for
Automotive Fuels Standards, accepted the CWA revision as a work item on its programme to be developed in
Working Group 21, responsible for Automotive Gasoline management.
The intention of CEN/TC 19 was to redraft the CWA into a CEN standard based on the publication of
EN 15376 and EN 228, also taking into account the developments in Sweden, France and Germany.
Discussion in WG 21 had indicated that there were still test method questions to be solved and thus national
initiatives were not halted.
CEN/TC 19, having considered the proposal for a new work item, as documented in N 1318 and supported by
WG 21, noting the request from UPEI in document N 1326R, decided to register the following work item as
described in N 1318 in its active programme of work: "Automotive fuels — Ethanol E85 — Requirements and
test methods", under the responsibility of WG 21. The scope was to develop a CEN Standard on the basis of
CWA 15293 and existing related national standards and to check for the most appropriate wording of the title
of the standard. The Task Force E85 was created.
The aim of the CWA was to keep the specification simple and straightforward, allowing cars to be introduced
into the market. The original idea was to ensure basic car functionality, for which the existing CWA succeeded.
However, as flexi-fuel vehicles were soon to fall under the Emission Legislation, more stringent fuel
requirements were needed. The existing CWA was not able to support EURO V vehicles.
CWA 15293 and its successor(s) should specify requirements and test methods for mar
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