CEN/TR 15993:2010
(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 EN 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 prEN 15293:2009 and should 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 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
Goriva za motorna vozila - Etanol (E85) gorivo za motorna vozila - Izhodišča zahtevanih parametrov, mejnih vrednosti in določevanja
To tehnično poročilo pojasnjuje zahteve in preskusne metode za etanol (E85) gorivo za motorna vozila, ki je na trgu, ter dobavljeno gorivo, v skladu z EN 15293. Podaja izhodiščne podatke za presojanje (odobritve) končnega besedila standarda in podaja navodila in pojasnila proizvajalcem, mešalcem, tržnikom in uporabnikom etanol (E85) goriva za motorna vozila.
General Information
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Standards Content (Sample)
SLOVENSKI STANDARD
01-april-2010
*RULYD]DPRWRUQDYR]LOD(WDQRO ( JRULYR]DPRWRUQDYR]LOD,]KRGLãþD
]DKWHYDQLKSDUDPHWURYPHMQLKYUHGQRVWLLQGRORþHYDQMD
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 - Ethanol (E85) carburants pour automobiles - Background
to the parameters required and their respective limits and determination
Ta slovenski standard je istoveten z: CEN/TR 15993:2010
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 2010
ICS 75.160.20; 71.080.60
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 für die geforderten Parameter und deren
leurs limites et détermination respectives jeweiligen Grenzwerte und Bestimmung
This Technical Report was approved by CEN on 4 January 2010. 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, 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 STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2010 CEN All rights of exploitation in any form and by any means reserved Ref. No. CEN/TR 15993:2010: E
worldwide for CEN national Members.
Contents Page
Foreword .3
1 Scope .4
2 Normative references .4
3 Summary of the ethanol fuel (E85) taskforce work .4
4 Record of the work to date .5
4.1 Context .5
4.2 The Ethanol (E85) automotive fuel Task Force .5
4.3 Planning .7
5 The draft ethanol (E85) automotive fuel specification .7
5.1 Parameters included .7
5.2 Considerations on the parameters .8
5.2.1 Denaturants .8
5.2.2 RON MON .8
5.2.3 Ethanol content and higher alcohols.9
5.2.4 Vapour pressure . 10
5.2.5 Density . 11
5.2.6 Sulfur content . 11
5.2.7 Oxidation stability . 12
5.2.8 Existent gum content (solvent washed) . 12
5.2.9 Appearance . 12
5.2.10 Higher alcohols (C3-C5) content . 12
5.2.11 Methanol content . 13
5.2.12 Ether (5 or more C atoms) content . 14
5.2.13 Phosphorus . 14
5.2.14 Water content . 14
5.2.15 Chloride content . 15
5.2.16 Copper strip corrosion . 16
5.2.17 Total acidity . 16
5.2.18 Copper content . 16
5.2.19 Sulfate content . 16
5.2.20 Conductivity . 17
5.2.21 pHe . 17
5.2.22 High boiling components . 17
5.2.23 Additives . 18
5.2.24 Biologically sourced ethanol . 18
5.2.25 Guidelines . 18
5.3 Parameters considered and not included in the draft specification . 18
5.3.1 Chlorine as chlorides . 18
5.3.2 Lead . 18
6 Acknowledgement . 18
Bibliography . 19
Foreword
This document (CEN/TR 15993:2010) 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.
The intention of the document was to support in publication of EN 15293, however both that document's and
the Technical Report enquiry ballot showed that many technical updates in both documents were needed.
This document will thus be updated immediately after its publication.
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 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 prEN 15293:2009 and should 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 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 228, Automotive fuels ― Unleaded petrol ― Requirements and test methods
prEN 15293:2009, Automotive fuels — Ethanol (E85) automotive fuel — Requirements and test methods
1)
EN 15376:2007 , Automotive fuels — Ethanol as a blending component for petrol — Requirements and test
methods
CWA 15293, Automotive fuels — Ethanol E85 — Requirements and test methods
3 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, with the scope 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 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, now referenced by the identification prEN 15293, comprises 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 prEN 15293:2009.)
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 finalize 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 has
been developed and this was presented in January 2009 to WG 21 and thereafter to CEN/CMC.
It should be noted that the draft standard has been considered on the basis of the ethanol blend component
specification EN 15376:2007 and the last version of the EN 228 (unleaded petrol) standard. Revision discussion
on those documents has been included in the discussions in the last two years. However prEN 15293 still
contains some pending issues, which are noted as such in the text.
1) Revision discussions regarding this version have been included in the TF discussions and in this Technical Report.
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, respectively EN 15376)
standards and the ethanol (E85) automotive fuel (prEN 15293) standard so that modifications to one will be
coherent with the other.
4 Record of the work to date
4.1 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, has 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 given indications that there were still test method questions to solve and thus
national initiativ
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