Automotive fuels - LPG - Requirements and test methods

This document specifies requirements and test methods for marketed and delivered automotive LPG (commonly known as low pressure gas or liquefied petroleum gas).
This document is applicable to automotive LPG for use in LPG engine vehicles designed to run on automotive LPG.
NOTE   For the purposes of this document, the terms "% (m/m)" and "% (V/V)" are used to represent respectively the mass fraction, µ, and the volume fraction, φ.
WARNING - Attention is drawn to the risk of fire and explosion when handling LPG and to the hazard to health arising through inhalation of excessive amounts of LPG.
LPG is a highly volatile hydrocarbon liquid which is normally stored under pressure. If the pressure is released large volumes of gas will be produced which form flammable mixtures with air over the range of approximately 2 % (V/V) to 10 % (V/V). This document involves the sampling, handling and testing of LPG. Naked flames, unprotected electrical equipment electrostatic hazards etc. are sources of ignition for LPG.
LPG in liquid form can cause cold burns to the skin. The national health and safety regulations apply.
LPG is heavier than air and accumulates in cavities. There is a danger of suffocation when inhaling high concentrations of LPG.
CAUTION - One of the tests described in this document involves the operator inhaling a mixture of air and LPG vapour. Particular attention is drawn to the cautionary statement provided in A.1, where this method is referred to.

Kraftstoffe - Flüssiggas - Anforderungen und Prüfverfahren

Dieses Dokument legt Anforderungen und Prüfverfahren für gehandeltes und geliefertes Flüssiggas für Kraftfahrzeuge (allgemein bekannt als unter geringem Druck verflüssigtes Gas oder Flüssiggas, LPG, en: liquefied petroleum gas) fest.
Dieses Dokument ist anwendbar für Flüssiggas für Kraftfahrzeuge, die auf den Betrieb mit diesem Kraftstoff ausgelegt sind.
ANMERKUNG   Für die Zwecke dieses Dokumentes wird zur Angabe des Massenanteils μ einer Substanz der Ausdruck "% (m/m)" und für den Volumenanteil φ einer Substanz der Ausdruck "% (V/V)" verwendet.
WARNUNG - Der Umgang mit Flüssiggas ist mit Brand  und Explosionsrisiken verbunden. Das Einatmen von Flüssiggas in größeren Mengen ist gesundheitsschädlich.
Flüssiggas ist ein Gemisch leichtflüchtiger, flüssiger Kohlenwasserstoffe, das üblicherweise unter Druck gelagert wird. Druckentlastung führt zur Entstehung großer Gasvolumina, die in Mischung mit Luft im Konzentrationsbereich von etwa 2 % (V/V) bis 10 % (V/V) entflammbar sind. Dieses Dokument behandelt den Umgang, die Probenahme und die Prüfung von Flüssiggas. Offene Flammen, ungeschützte elektrische Einrichtungen, elektrostatische Gefahrenquellen usw. sind Zündquellen für Flüssiggas.
Im flüssigen Zustand kann Flüssiggas zu Erfrierungen der Haut führen. Es gelten die nationalen Arbeitsschutzvorschriften.
Flüssiggas ist schwerer als Luft und sammelt sich in Vertiefungen an. Beim Einatmen hoher Konzentrationen von Flüssiggas besteht Erstickungsgefahr.
ACHTUNG - Eines der in diesem Dokument beschriebenen Prüfverfahren erfordert das Inhalieren einer Mischung aus Luft und Flüssiggasdämpfen durch die Prüfperson. Die Sicherheitsmaßnahmen in A.1, worin dieses Verfahren behandelt wird, sind besonders zu beachten.

Carburants pour automobiles - GPL - Exigences et méthodes d'essai

Le présent document spécifie des exigences et des méthodes d'essai pour le gaz de pétrole liquéfié (GPL) destiné aux véhicules commercialisés et livrés avec du GPL (communément appelé gaz liquéfié à basse pression ou gaz de pétrole liquéfié).
Ce document est applicable au carburant GPL destiné aux véhicules à moteur conçus pour utiliser ce type de carburant.
NOTE   Pour les besoins du présent document, les expressions « % (m/m) » et « % (V/V) » sont utilisées pour représenter respectivement les fractions massique, µ, et volumique, φ.
AVERTISSEMENT - L’attention est particulièrement attirée sur les risques d'incendie ou d'explosion lors de la manipulation du GPL et sur les dangers que représente pour la santé l'inhalation de quantités excessives de GPL.
Les GPL sont des hydrocarbures liquides hautement volatils, normalement stockés sous pression. Si la pression est relâchée, la vaporisation de ces produits entraîne la production de volumes appréciables de gaz capables de former avec l'air des mélanges explosifs dans les limites d'environ 2 % (V/V) à 10 % (V/V). Le présent document comprend l'échantillonnage, la manipulation et les essais sur le GPL. Les flammes nues, les équipements électriques non anti-déflagrants, les risques électrostatiques, etc sont des sources d’inflammation des GPL.
Le GPL sous forme liquide peut provoquer des brûlures de la peau. La réglementation nationale relative à la santé et à la sécurité s’appliquent.
Le GPL est plus dense que l’air et s’accumule dans les cavités. Il existe un risque de suffocation lorsque des concentrations élevées de GPL sont inhalées.
AVERTISSEMENT - L’un des tests décrits dans le présent document implique l’inhalation par l’opérateur d’un mélange d’air et de vapeurs de GPL. Une attention particulière est attirée sur la mise en garde fournie en A.1 de l’Annexe A, où cette méthode est définie.

Goriva za motorna vozila - Utekočinjeni naftni plin (UNP) - Zahteve in preskusne metode

General Information

Status
Not Published
Publication Date
07-Jul-2025
Current Stage
4060 - Closure of enquiry - Enquiry
Start Date
25-May-2023
Due Date
15-Nov-2023
Completion Date
25-May-2023

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SLOVENSKI STANDARD
oSIST prEN 589:2023
01-marec-2023
Goriva za motorna vozila - Utekočinjeni naftni plin (UNP) - Zahteve in preskusne
metode
Automotive fuels - LPG - Requirements and test methods
Kraftstoffe - Flüssiggas - Anforderungen und Prüfverfahren
Carburants pour automobiles - GPL - Exigences et méthodes d'essai
Ta slovenski standard je istoveten z: prEN 589
ICS:
75.160.20 Tekoča goriva Liquid fuels
oSIST prEN 589:2023 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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oSIST prEN 589:2023

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oSIST prEN 589:2023


DRAFT
EUROPEAN STANDARD
prEN 589
NORME EUROPÉENNE

EUROPÄISCHE NORM

March 2023
ICS 75.160.20 Will supersede EN 589:2018+A1:2022
English Version

Automotive fuels - LPG - Requirements and test methods
Carburants pour automobiles - GPL - Exigences et Kraftstoffe - Flüssiggas - Anforderungen und
méthodes d'essai Prüfverfahren
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee
CEN/TC 19.

If this draft becomes a European Standard, 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.

This draft European Standard was established by CEN 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-CENELEC
Management Centre has the same status as the official versions.

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.

Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are
aware and to provide supporting documentation.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without
notice and shall not be referred to as a European Standard.


EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2023 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 589:2023 E
worldwide for CEN national Members.

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oSIST prEN 589:2023
prEN 589:2023 (E)
Contents Page
European foreword . 3
1 Scope . 4
2 Normative references . 4
3 Terms and definitions . 5
4 Sampling . 5
5 Pump marking . 5
6 Requirements and test methods . 6
6.1 General . 6
6.2 Water content . 6
6.3 Odour . 6
6.4 Density . 6
6.5 Precision and dispute . 6
7 Remarks concerning vehicle application issues like residues in vaporizers or
injectors . 8
Annex A (normative) Test method for odour of LPG . 9
A.1 Introduction . 9
A.2 Principle . 9
A.3 Material . 9
A.4 Apparatus . 9
A.5 Procedure. 10
A.6 Expression of results . 11
Annex B (normative) Method of calculation of the Motor Octane Number (MON) from
compositional analysis of LPG . 12
B.1 Introduction . 12
B.2 Principle . 12
B.3 Determination . 12
B.4 Calculation and expression of results . 12
B.5 Reporting . 13
Annex C (normative) Absolute vapour pressure blending factors . 14
Annex D (informative) Seasonal gauge vapour pressure limits . 15
Bibliography . 16
2

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oSIST prEN 589:2023
prEN 589:2023 (E)
European foreword
This document (prEN 589:2023) 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.
This document is currently submitted to the CEN Enquiry.
This document will supersede EN 589:2018+A1:2022.
th
This is the 8 edition of EN 589. The main technical changes include:
a) change of vapour pressure requirement, increase of minimum vapour pressure;
b) change of limit value for 1,3 butadiene to <0,10 % m/m.

3

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oSIST prEN 589:2023
prEN 589:2023 (E)
1 Scope
This document specifies requirements and test methods for marketed and delivered automotive LPG
(commonly known as low pressure gas or liquefied petroleum gas).
This document is applicable to automotive LPG for use in LPG engine vehicles designed to run on
automotive LPG.
NOTE For the purposes of this document, the terms “% (m/m)” and “% (V/V)” are used to represent
respectively the mass fraction, µ, and the volume fraction, φ.
WARNING — Attention is drawn to the risk of fire and explosion when handling LPG and to the
hazard to health arising through inhalation of excessive amounts of LPG.
LPG is a highly volatile hydrocarbon liquid which is normally stored under pressure. If the
pressure is released large volumes of gas will be produced which form flammable mixtures with
air over the range of approximately 2 % (V/V) to 10 % (V/V). This document involves the
sampling, handling and testing of LPG. Naked flames, unprotected electrical equipment
electrostatic hazards etc. are sources of ignition for LPG.
LPG in liquid form can cause cold burns to the skin. The national health and safety regulations
apply.
LPG is heavier than air and accumulates in cavities. There is a danger of suffocation when inhaling
high concentrations of LPG.
CAUTION — One of the tests described in this document involves the operator inhaling a mixture
of air and LPG vapour. Particular attention is drawn to the cautionary statement provided in A.1,
where this method is referred to.
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 15469, Petroleum products — Test method for free water in liquefied petroleum gas by visual inspection
EN 15470, Liquefied petroleum gases — Determination of dissolved residues — High temperature Gas
chromatographic method
EN 15471, Liquefied petroleum gases — Determination of dissolved residues — High-temperature
gravimetric method
EN 16423, Liquefied petroleum gases — Determination of dissolved residue — Gas chromatographic
method using liquid, on-column injection
EN 16942, Fuels — Identification of vehicle compatibility — Graphical expression for consumer information
EN 17178:2019, Liquid petroleum products — Determination of the total volatile sulfur content in liquefied
petroleum gases by ultraviolet fluorescence spectroscopy
EN 27941, Commercial propane and butane — Analysis by gas chromatography (ISO 7941)
EN ISO 4256, Liquefied petroleum gases — Determination of gauge pressure — LPG method (ISO 4256)
EN ISO 4257, Liquefied petroleum gases — Method of sampling (ISO 4257)
4

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oSIST prEN 589:2023
prEN 589:2023 (E)
EN ISO 4259-2, Petroleum and related products — Precision of measurement methods and results — Part
2: Interpretation and application of precision data in relation to methods of test (ISO 4259-2)
EN ISO 6251, Liquefied petroleum gases — Corrosiveness to copper — Copper strip test (ISO 6251)
EN ISO 8819, Liquefied petroleum gases — Detection of hydrogen sulfide — Lead acetate method (ISO
8819)
EN ISO 8973, Liquefied petroleum gases — Calculation method for density and vapour pressure (ISO 8973)
DIN 51619, Testing of mineral oil hydrocarbons — Determination of the composition of liquid petroleum
gases — Gas chromatographic analysis under special consideration of 1,3-butadiene with mass fractions
≤ 0,1 % (m/m)
ASTM D6667–14, Standard Test Method for Determination of Total Volatile Sulfur in Gaseous Hydrocarbons
and Liquefied Petroleum Gases by Ultraviolet Fluorescence
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— IEC Electropedia: available at https://www.electropedia.org/
— ISO Online browsing platform: available at https://www.iso.org/obp
3.1
liquefied petroleum gas
low pressure gas
low pressure liquefied gas of petroleum, synthetic or biological origin that can be stored and/or handled
in the liquid phase under moderate conditions of pressure and at ambient temperature, consisting
predominantly of propane and butanes, with small proportions of other compounds, including propene,
butenes and pentanes/pentenes
4 Sampling
Samples shall be taken as described in EN ISO 4257 and/or in accordance with the requirements of
national standards or regulations for the sampling of automotive LPG. The national requirements shall
be set out in detail or shall be referred to by reference in a national annex to this document.
In view of the sensitivity of some of the test methods referred to in this document, particular attention
shall be paid to compliance with any guidance on sampling containers which is included in the test
method standard.
IMPORTANT — It is important that the sampling procedure is followed in detail in order to avoid
evaporation losses.
Before sampling from the dispenser hose, 20 l of product should be pumped or recirculated, in order to
obtain a representative sample.
5 Pump marking
Information to be marked on dispensing pumps and nozzles used for delivering automotive LPG, and the
dimensions of the label shall be in accordance with EN 16942.
5

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oSIST prEN 589:2023
prEN 589:2023 (E)
6 Requirements and test methods
6.1 General
When tested by the methods of test given in Table 1, automotive LPG fuel shall comply with the limiting
requirements specified in that table.
For the minimum vapour pressure, five grades, A, B, C, D and E are given to allow f
...

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