EN ISO 4264:2007

SLOVENSKI STANDARD
01-december-2007
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SIST EN ISO 4264:1998
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Petroleum products - Calculation of cetane index of middledistillate fuels by the four-
variable equation (ISO 4264:2007)
Mineralölerzeugnisse - Berechnung des Cetanindex von Mitteldestillat-Kraftstoffen aus
der 4 Parameter-Gleichung (ISO 4264:2007)
Produits pétroliers - Calcul de l'indice de cétane des distillats moyens par équation a
quatre variables (ISO 4264:2007)
Ta slovenski standard je istoveten z: EN ISO 4264:2007
ICS:
75.160.20 7HNRþDJRULYD Liquid fuels
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN ISO 4264
NORME EUROPÉENNE
EUROPÄISCHE NORM
August 2007
ICS 75.160.20 Supersedes EN ISO 4264:1996
English Version
Petroleum products - Calculation of cetane index of middle-
distillate fuels by the four-variable equation (ISO 4264:2007)
Produits pétroliers - Calcul de l'indice de cétane des Mineralölerzeugnisse - Berechnung des Cetanindex von
distillats moyens par équation à quatre variables (ISO Mitteldestillat-Kraftstoffen aus der 4 Parameter-Gleichung
4264:2007) (ISO 4264:2007)
This European Standard was approved by CEN on 13 August 2007.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European
Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national
standards 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 translation
under the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as the
official 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 STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36  B-1050 Brussels
© 2007 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 4264:2007: E
worldwide for CEN national Members.

Contents Page
Foreword.3

Foreword
This document (EN ISO 4264:2007) has been prepared by Technical Committee ISO/TC 28 "Petroleum
products and lubricants" in collaboration with 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.
This European Standard shall be given the status of a national standard, either by publication of an identical
text or by endorsement, at the latest by February 2008, and conflicting national standards shall be withdrawn
at the latest by February 2008.
This document supersedes EN ISO 4264:1996.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following
countries are bound to implement this European Standard: 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 the United Kingdom.
Endorsement notice
The text of ISO 4264:2007 has been approved by CEN as a EN ISO 4264:2007 without any modification.

INTERNATIONAL ISO
STANDARD 4264
Second edition
2007-08-15
Petroleum products — Calculation of
cetane index of middle-distillate fuels by
the four-variable equation
Produits pétroliers — Calcul de l'indice de cétane des distillats moyens
par équation à quatre variables

Reference number
ISO 4264:2007(E)
©
ISO 2007
ISO 4264:2007(E)
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ISO 4264:2007(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies
(ISO member bodies). The work of preparing International Standards is normally carried out through ISO
technical committees. Each member body interested in a subject for which a technical committee has been
established has the right to be represented on that committee. International organizations, governmental and
non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the
International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International Standards
adopted by the technical committees are circulated to the member bodies for voting. Publication as an
International Standard requires approval by at least 75 % of the member bodies casting a vote.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. ISO shall not be held responsible for identifying any or all such patent rights.
ISO 4264 was prepared by Technical Committee ISO/TC 28, Petroleum products and lubricants.
This second edition cancels and replaces the first edition (ISO 4264:1995), of which it constitutes a minor
revision with the changes to Figures 1, 2 and 3 and the updating of the normative references in Clause 2.

INTERNATIONAL STANDARD ISO 4264:2007(E)

Petroleum products — Calculation of cetane index of middle-
distillate fuels by the four-variable equation
WARNING — The use of this International Standard may involve hazardous materials, operations and
equipm
...