SIST-TP CEN/TR 18169:2025

SLOVENSKI STANDARD
01-junij-2025
Nafta in sorodni proizvodi - Vodilo za ocenjevanje alternativnih goriv in
komponent za mešanje goriv - Informacije za proizvajalce in mešalce
avtomobilskih goriv
Petroleum and related products — Alternative fuels and fuel blending components
assessment guide — Information to producers and blenders of automotive fuels
Mineralölerzeugnisse - Leitfaden zur Bewertung von alternativen Kraftstoffen und von
Komponenten für Kraftstoffmischungen - Informationen für Hersteller und
Mischungshersteller von Kraftstoffen
Produits pétroliers - Guide d'évaluation des carburants alternatifs et des composants des
mélanges de carburants - Informations destinées aux producteurs et aux mélangeurs de
carburants automobiles
Ta slovenski standard je istoveten z: CEN/TR 18169:2025
ICS:
75.160.20 Tekoča goriva Liquid fuels
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

CEN/TR 18169
TECHNICAL REPORT
RAPPORT TECHNIQUE
April 2025
TECHNISCHER REPORT
ICS 75.160.20
English Version
Petroleum and related products - Alternative fuels and fuel
blending components assessment guide - Information to
producers and blenders of automotive fuels
Produits pétroliers - Guide d'évaluation des carburants Mineralölerzeugnisse - Leitfaden zur Bewertung von
alternatifs et des composants des mélanges de alternativen Kraftstoffen und von Komponenten für
carburants - Informations destinées aux producteurs et Kraftstoffmischungen - Informationen für Hersteller
aux mélangeurs de carburants automobiles und Mischungshersteller von Kraftstoffen

This Technical Report was approved by CEN on 14 April 2025. 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, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye 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
© 2025 CEN All rights of exploitation in any form and by any means reserved Ref. No. CEN/TR 18169:2025 E
worldwide for CEN national Members.

Contents Page
European foreword . 3
1 Scope . 4
2 Normative references . 4
3 Terms and definitions . 4
4 General . 4
4.1 Purpose . 4
4.2 Background . 5
4.2.1 European fuel specifications . 5
4.2.2 Workmanship . 5
4.2.3 Available guidance . 5
4.3 Considerations on the parameters . 6
5 What to consider regarding suitability of use . 6
5.1 Compatibility . 6
5.2 Handling . 6
5.3 Storage and distribution . 7
6 Fitness for purpose . 7
Bibliography . 8

European foreword
This document (CEN/TR 18169:2025) 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.
Any feedback and questions on this document should be directed to the users’ national standards body.
A complete listing of these bodies can be found on the CEN website.
1 Scope
This document presents information to producers and blenders of automotive fuels. It allows the user to
assess new products or blends and their production processes to determine what information is helpful
to consider:
— the applicable fuel specification standard(s);
— the ‘workmanship clause’ cited by CEN fuel specifications;
— the impact on vehicle emissions systems, material compatibility and vehicle operability;
— the correct functioning of the intended product (fitness for purpose).
This document is a collection of information. It serves as guidance and cannot be considered as a product
approval paper in any way.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.
ISO 1998-2, Petroleum industry — Terminology — Part 2: Properties and tests
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 1998-2 and the following apply.
ISO and IEC maintain terminology databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https://www.iso.org/obp
— IEC Electropedia: available at https://www.electropedia.org/
3.1
additive
compound formulated to enhance the quality and efficiency of fuels and added in very small treat rates
3.2
blending component
compound to be mixed with a conventional fuel
4 General
4.1 Purpose
The purpose of this document is to give general guidance on evaluation of new materials for blends in or
replacements for fuels for spark ignition engines, such as EN 228 [18], or for compressed injection
engines, such as EN 590 [20].
CEN does not certify, approve, reject, or endorse specific fuels. Rather, its Technical Committee 19
develops fuel specifications and test methods for fuels. Its standards provide minimum requirements for
properties of fuels covered by these documents in commerce and address the concerns of stakeholders,
including that fuels perform appropriately in the specified application.
This guidance is not all-encompassing and cannot replace the judgment and process of a technical
committee charged with evaluating a new fuel or blending component. However, it gives guidance to
proponents or fuel manufacturers who are considering proposing the inclusion of their new fuel or
blending component in European Standards.
4.2 Background
4.2.1 European fuel specifications
Historically, automotive fuel has been hydrocarbon molecules refined from petroleum. As a result,
EN 228, EN 589 [20] and EN 590, have evolved to define performance requirements (and tests to
determine if those requirements were met) for compression ignition (CI) and spark ignition (SI) engine
fuels composed of conventional hydro-carbon oils refined from petroleum. Because these specifications
evolved to describe petroleum-derived fuels, some of the properties necessary for use in a compression
and spark ignition engines have historically not been addressed in EN 228, EN 589 or EN 590.
These specifications, however, do not require that fuels be derived from petroleum. They provide a path
to include other fuels and blending components appropriate for inclusion in the respective fuel
specification.
Limits for adding some bio-components the specifications (e.g. ethanol and other oxygenates in EN 228,
FAME in EN 590) do not apply to other (non-petroleum derived) hydrocarbons, such as synthetic
hydrocarbons, other renewable and recycled carbon hydrocarbons, since these components are allowed
in any proportions provided that the final fuel complies with the requirements of the appropriate
European Standard. The co-processing of renewable feedstock at refineries is also allowed provided that
the final fuel meets the requirements of the appropriate European Standard.
4.2.2 Workmanship
The final fuel specifications by CEN/TC 19 usually include the so-called workmanship clause. That reads
that the product “shall be free from any adulterant or contaminant that may render the fuel unacceptable
for use” (where the use or purpose is defined by the product specification). This requirement has in the
past been introduced to cover cases of malfunctioning product due to the supplier only checking against
the specification table without taking into account due diligence, for example around the use of additives
or assuring a robust delivery chain.
Though the workmanship clause did not originate because of new (bio)fuels coming on the market, it is
an indicator towards producers that not all chemicals on the market that, when blended into petrol or
(paraffinic) diesel without breaching any of the limits in the specification tables,
...