oSIST prEN ISO 10239:2023

SLOVENSKI STANDARD
oSIST prEN ISO 10239:2023
01-marec-2023
Nadomešča:
SIST EN ISO 10239:2017
Mala plovila - Sistemi za utekočinjeni naftni plin (LPG) (ISO/DIS 10239:2023)
Small craft - Liquefied petroleum gas (LPG) systems (ISO/DIS 10239:2023)
Kleine Wasserfahrzeuge - Flüssiggas-Anlagen (LPG) (ISO/DIS 10239:2023)
Petits navires - Installations alimentées en gaz de pétrole liquéfiés (GPL) (ISO/DIS
10239:2023)
Ta slovenski standard je istoveten z: prEN ISO 10239
ICS:
47.080 Čolni Small craft
75.160.30 Plinska goriva Gaseous fuels
oSIST prEN ISO 10239:2023 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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oSIST prEN ISO 10239:2023

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oSIST prEN ISO 10239:2023
DRAFT INTERNATIONAL STANDARD
ISO/DIS 10239
ISO/TC 188 Secretariat: SIS
Voting begins on: Voting terminates on:
2023-01-10 2023-04-04
Small craft — Liquefied petroleum gas (LPG) systems
Petits navires — Installations alimentées en gaz de pétrole liquéfiés (GPL)
ICS: 47.080
This document is circulated as received from the committee secretariat.
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENT AND APPROVAL. IT IS
ISO/CEN PARALLEL PROCESSING
THEREFORE SUBJECT TO CHANGE AND MAY
NOT BE REFERRED TO AS AN INTERNATIONAL
STANDARD UNTIL PUBLISHED AS SUCH.
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POTENTIAL TO BECOME STANDARDS TO
WHICH REFERENCE MAY BE MADE IN
Reference number
NATIONAL REGULATIONS.
ISO/DIS 10239:2023(E)
RECIPIENTS OF THIS DRAFT ARE INVITED
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NOTIFICATION OF ANY RELEVANT PATENT
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PROVIDE SUPPORTING DOCUMENTATION. © ISO 2023

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oSIST prEN ISO 10239:2023
ISO/DIS 10239:2023(E)
DRAFT INTERNATIONAL STANDARD
ISO/DIS 10239
ISO/TC 188 Secretariat: SIS
Voting begins on: Voting terminates on:

Small craft — Liquefied petroleum gas (LPG) systems
Petits navires — Installations alimentées en gaz de pétrole liquéfiés (GPL)
ICS: 47.080
This document is circulated as received from the committee secretariat.
COPYRIGHT PROTECTED DOCUMENT
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENT AND APPROVAL. IT IS
© ISO 2023
ISO/CEN PARALLEL PROCESSING
THEREFORE SUBJECT TO CHANGE AND MAY
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NOT BE REFERRED TO AS AN INTERNATIONAL
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NATIONAL REGULATIONS.
Website: www.iso.org ISO/DIS 10239:2022(E)
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ii
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PROVIDE SUPPORTING DOCUMENTATION. © ISO 2022

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oSIST prEN ISO 10239:2023
ISO/DIS 10239:2022(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
4 General provisions .4
5 Pressure regulation device.5
6 LPG Supply line . 5
6.1 General . 5
6.2 Piping . 6
6.3 Hose . 6
6.4 Materials . 8
6.5 Installation . 8
6.6 Shut-off valves . 9
7 Appliances .10
8 Ducts and flues for air intake and combustion product discharge.11
9 Location and installation of LPG cylinders .12
10 Ventilation .12
11 LPG installation tightness tests .13
12 Ignition protection from electrical devices .13
13 Owner's manual .13
Annex A (informative) Design guidelines for pressure drop due to pipe resistance .14
Annex B (normative) Ventilation .15
Annex C (normative) Instructions to be included with the owner's manual .16
Annex D (normative) Cooking appliances with integral LPG cartridges with a capacity of
225 g or less .18
Annex ZA (informative) Relationship between this European Standard and the essential
requirements of EU Directive 2013/53/EU.19
Bibliography .21
iii
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oSIST prEN ISO 10239:2023
ISO/DIS 10239:2022(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.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).
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. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www.iso.org/patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO's adherence to
the World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT), see
www.iso.org/iso/foreword.html.
This document was prepared by Technical Committee ISO/TC 188, Small craft, in collaboration with
the European Committee for Standardization (CEN) Technical Committee CEN/TC 464, Small craft, in
accordance with the Agreement on technical cooperation between ISO and CEN (Vienna Agreement).
This fourth edition cancels and replaces the third edition (ISO 10239:2014), which has been technically
revised. The major technical changes include:
The main changes are as follows:
— scope has been clarified;
— new definitions for room sealed appliance and open flued appliance have been added;
— the location of pressure regulation devices has been clarified.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www.iso.org/members.html.
iv
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oSIST prEN ISO 10239:2023
DRAFT INTERNATIONAL STANDARD ISO/DIS 10239:2022(E)
Small craft — Liquefied petroleum gas (LPG) systems
1 Scope
This document addresses the installation of permanently installed liquefied petroleum gas (LPG)
systems and LPG-burning appliances on small craft.
This document does not apply to LPG-fuelled propulsion engines or LPG-driven generators.
This document addresses cooking appliances with internal LPG cartridges, with a capacity of 225 g or
less (See Annex D).
This document addresses storage of all LPG cylinders but is not intended to regulate the technical
requirements for such cylinders that are subject to national regulations.
It does not contain procedures for commissioning new LPG installations or system maintenance or
upgrades. Competent persons responsible for commissioning LPG installations should use relevant
national codes and procedures appropriate to the country concerned.
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.
ISO 7-1:1994, Pipe threads where pressure-tight joints are made on the threads — Part 1: Dimensions,
tolerances and designation
ISO 8434-1:2018, Metallic tube connections for fluid power and general use — Part 1: 24° cone connectors
ISO 8666:2020, Small craft — Principal data
ISO 8846:1990, Small craft — Electrical devices — Protection against ignition of surrounding flammable
gases
ISO 9094:2015, Small craft — Fire protection
ISO 10240:2019, Small craft — Owner’s manual
ISO 11812:2020, Small craft — Watertight or quick-draining recesses and cockpits
EN 751-2:1996, Sealing materials for metallic threaded joints in contact with 1st, 2nd and 3rd family gases
and hot water — Part 2: Non-hardening jointing compounds
EN 751-3:1996, Sealing materials for metallic threaded joints in contact with 1st, 2nd and 3rd family gases
and hot water — Part 3: Unsintered PTFE tapes
EN 1254-2:2021, Copper and copper alloys - Plumbing fittings - Part 2: Compression fittings for use with
copper tubes
EN 1949:2021, Specification for the installation of LPG systems for habitation purposes in leisure
accommodation vehicles and accommodation purposes in other vehicles
EN 14291:2004, Foam producing solutions for leak detection on gas installations
EN 15266:2007, Stainless steel pliable corrugated tubing kits in buildings for gas with an operating
pressure up to 0,5 bar
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oSIST prEN ISO 10239:2023
ISO/DIS 10239:2022(E)
EN 16129:2013, Pressure regulators, automatic change-over devices, having a maximum regulated
pressure of 4 bar, with a maximum capacity of 150 kg/h, associated safety devices and adaptors for butane,
propane, and their mixtures
3 Terms and definitions
For the purposes of this document, the following terms and definitions 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
craft
small craft
recreational boat, and other watercraft using similar equipment, of up to 24 m length of hull (Lh)
Note 1 to entry: The measurement methodology for the length of hull (Lh) is defined in ISO 8666.
[SOURCE: ISO 8666:2020, 3.15, modified – Note 1 to entry has been added.]
3.2
liquefied petroleum gas
LPG
mixture of light hydrocarbons, gaseous under conditions of normal temperature and pressure, and
maintained in the liquid state by increase of pressure or lowering of temperature
Note 1 to entry: The principal components are propane, propene, butanes or butenes.
Note 2 to entry: LPG can be obtained as commercial butane, commercial propane or a mixture of the two.
[SOURCE: EN 624:2011, 3.1.7 — modified with addition of Note 2 to entry]
3.3
permanently installed
securely fastened so that tools need to be used for removal
[SOURCE: ISO 10088:2013, definition 3.3]
3.4
cylinder housing
ventilated enclosure intended solely for storage of one or more LPG cylinders, pressure regulation
device and safety devices, and located so that leakage flows to the outside
3.5
cylinder locker
enclosure which is vapour tight to the interior of the craft with a drain to the outside intended solely for
storage of one or more LPG cylinders in a cockpit or recessed into the craft
3.6
LPG system
system consisting of an arrangement of cylinder(s), safety device(s), pressure regulation device(s),
connection(s), valve(s), piping, tubing, hose, fitting(s) and devices intended to store, supply, monitor or
control the flow of LPG up to and including the appliance
Note 1 to entry: The cylinders are replacement items and might or might not be supplied with the LPG system in
the craft.
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oSIST prEN ISO 10239:2023
ISO/DIS 10239:2022(E)
3.7
habitable space
space surrounded by permanent structure in which there is provision for any of the following activities:
sleeping, cooking, eating, washing/toilet, navigation, steering
Note 1 to entry: Spaces intended exclusively for storage, open cockpits with or without canvas enclosures and
engine compartments (3.21), are not included.
3.8
readily accessible
capable of being reached quickly and safely for effective use under emergency conditions without the
use of tools
[SOURCE: ISO 9094:2015]
3.9
unattended appliance
device intended to function without the constant attention of an operator and which can cycle on and
off automatically
3.10
high pressure side
part of an installation between the cylinder valve and the inlet of a pressure regulation device in a LPG
system
1).
Note 1 to entry: Vapour pressure at 20 °C for propane = 700 kPa and for butane = 175 kPa
3.11
low pressure side
part of an installation exposed to the regulated pressure of the LPG pressure regulation device in a LPG
system
3.12
pressure regulation device
device to reduce in a controlled manner, the high pressure of the LPG system to the required operating
pressure (3.16) of the appliances
3.13
appliance shut-off valve
device to isolate an appliance from the gas supply
3.14
main shut-off valve
device to isolate the entire LPG system from the high pressure side (3.10) of the supply
3.15
flame supervision device
device that has a sensing element, that causes the inlet of the LPG supply to a burner to be open in the
presence of a flame and closed in the absence of a flame
3.16
operating pressure
inlet pressure of the LPG appliances
3.17
ventilator
device that allows air to pass into and out of an interior space
1) 100 kPa = 1 bar.
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oSIST prEN ISO 10239:2023
ISO/DIS 10239:2022(E)
3.18
room-sealed appliance
appliance having a combustion system in which incoming combustion air and outgoing products
of combustion pass through ductwork sealed to habitable spaces (3.7) and connected to an enclosed
combustion chamber
3.19
open flued appliance
appliance where combustion air is drawn from the space containing the appliance and the outgoing
products of combustion pass through a flue incorporating a draught diverter
3.20
hose assembly
length of hose with a coupling attached on both ends
[SOURCE: EN 16436-2]
3.21
engine compartment
compartment of the craft, containing spark or compression ignition internal combustion engine(s)
4 General provisions
4.1 An LPG system and all its components shall be capable of withstanding storage at −30 °C to
+60 °C.
4.2 LPG systems shall be of the vapour withdrawal type, i.e., LPG released only under gas phase
conditions.
4.3 All LPG appliances installed on a single LPG system shall be designed for use at the same operating
pressure and the same LPG type, e.g., propane, butane, or a mixture of the two. The operating pressure
shall be clearly labelled in the vicinity of the cylinder shut-off valve.
The cylinder(s) selected and other supply equipment shall be of sufficient capacity to ensure safe and
satisfactory operation of all appliances simultaneously. The cylinder locker or cylinder housing shall be
capable of accommodating the capacity of cylinders needed.
4.4 Where an additional LPG system is installed:
— there shall be no connection between each of the LPG supplies;
— the cylinder(s) for each gas supply may be installed in the same cylinder locker or cylinder housing.
If an additional cylinder locker or cylinder housing is used, there shall be a warning sign inside each
cylinder locker or cylinder housing which indicates that there is an additional LPG supply.
Inside the cylinder locker or cylinder housing it shall be clearly indicated which appliances are supplied
by each LPG supply. This shall also be stated in the owner’s manual.
4.5 Each LPG system shall be fitted with simple means to test the LPG system for leakage before use
of any appliances (e.g., a pressure gauge, bubble leak detector).
Where a bubble leak detector is fitted in the LPG system, it shall be securely mounted in the low
pressure side of the LPG system and in the cylinder housing or cylinder locker.
If pressure gauges are used, they shall read the cylinder pressure side of the pressure regulation device.
The gauge scale shall have a pressure range from 0 kPa to a maximum of between 1 000 kPa and
1 600 kPa to be able to show pressure drops during the LPG system check (see C.3).
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oSIST prEN ISO 10239:2023
ISO/DIS 10239:2022(E)
5 Pressure regulation device
5.1 Each LPG system shall be equipped with, or have provision for the installation of, a pressure
regulation device (see 3.12). This device shall be designed to provide a defined operating pressure
suitable for the consuming appliances, but not more than 5 kPa. A label indicating the operating
pressure of the LPG appliances installed shall be affixed in the vicinity of the LPG cylinder locker or
cylinder housing.
5.2 The LPG pressure regulation device shall have an overpressure unit to prevent uncontrolled
pressure increase in the low pressure side to a value above 15 kPa. Any LPG discharge of the unit shall
be inside the cylinder locker or housing, or shall be separately vented outside the craft. The unit may be
a pressure relief governor, a pressure relief valve or an automatic safety shut off valve.
5.3 The operating pressure shall be marked on the pressure regulation device.
5.4 Pressure regulation devices shall not have an external manual output pressure adjustment.
5.5 The pressure regulation device shall be located within the cylinder locker or housing.
5.6 If not rigidly connected to, and supported by, the cylinder connection, the pressure regulation
device shall be separately secured within the cylinder locker or cylinder housing to protect it from
damage and exposure to dirt and water.
5.7 Pressure regulation devices shall be located such that the inlet to them is at or above the level of
the cylinder outlet connection.
5.8 Pressure regulation devices shall be made of corrosion-resistant metallic material or have an
effective coating against external corrosion. Fasteners used shall be of corrosion-resistant material or
have a corrosion-resistant plating or coating.
NOTE Pressure regulation devices in accordance with EN 16129:2013, Annex M, meet these requirements
and are marked with ‘Marine.’
6 LPG Supply line
6.1 General
The LPG supply line from the cylinder locker or cylinder housing to the appliance(s) shall be:
— piping in accordance with 6.2, or
— a continuous single hose assembly from the cylinder locker or cylinder housing to each appliance in
accordance with 6.3.
The layout of each supply line shall be such that the length of piping and/or hose assemblies are as short
as practicable.
6.1.1 Hose assemblies shall be used to connect:
— gimballed appliances to any LPG supply line piping;
— cylinders to pressure regulation devices (high pressure side of the system) where the pressure
regulation device is not connected directly to the cylinder;
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oSIST prEN ISO 10239:2023
ISO/DIS 10239:2022(E)
— cylinder mounted pressure regulation devices to any LPG supply line piping (low pressure side of
the system). In such arrangements the hose and its connections to the pressure regulation device
shall be within the cylinder locker or cylinder housing.
In accordance with the appliance manufacturer’s instructions, hose assemblies can also be used to
connect appliances that are not gimballed to their LPG supply line piping.
6.1.2 Piping and hose assemblies shall be sized so that any pressure drop due to pipe resistance does
not reduce the operating pressure at any appliance below that required by the appliance manufacturer
when all appliances are operating simultaneously. See Annex A.
6.2 Piping
6.2.1 Only solid drawn copper or drawn stainless steel piping shall be used for rigid supply lines.
Attention shall be given to galvanic compatibility when connecting different materials.
Wall thickness for copper or stainless steel piping shall be equal or greater than 0,6 mm for piping up
to 12 mm outside diameter and a minimum of 0,8 mm for piping with an outside diameter greater than
12 mm.
Semi-rigid, pliable corrugated stainless steel tubing (PCT) shall conform to EN 15266:2007, or
equivalent.
6.2.2 There shall be no joints or fittings in piping passing through engine compartments.
6.2.3 Piping routed through engine compartments shall be protected by conduit or trunking, or
supported by non-abrasive attachments which are no more than 300 mm apart.
6.2.4 Fittings for connections and joints in piping shall be metallic and of any of the following types:
— hard soldered and brazed connections;
— cutting ring fittings in accordance with ISO 8434-1:2018, Table 4 (see also 6.4.2, 6.4.4, 6.4.5);
— copper rings on copper piping and compression fittings in accordance with EN 1254-2:2021 or
equivalent;
— stainless steel rings on stainless steel piping;
— connections in accordance with EN 16129:2013, Annex M;
— pliable corrugated stainless steel tubing (PCT) fittings in accordance with EN 15266:2007, or
equivalent.
Jointing compound for flared fittings or flared rings and gas tightness by compression of ductile joints
(except connections in accordance with EN 16129:2013, Annex M) shall not be used.
6.2.5 Piping shall be installed above bilge water as high as practicable.
6.2.6 Piping shall be made up with as few fittings as practicable. Joints and fittings shall be capable
of being reached for inspection, removal or maintenance without removal of any permanent craft
structure.
6.3 Hose
6.3.1 Only hose assemblies shall be used. Hose assemblies shall have permanently attached end
fittings, such as swaged sleeve or sleeve and threaded insert.
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oSIST prEN ISO 10239:2023
ISO/DIS 10239:2022(E)
NOTE Hose assemblies in accordance with EN 16436-2, ISO 10380 or EN 14800 meet this requirement.
6.3.2 Materials and components of hose assemblies shall be designed to be suitable for LPG and to
withstand the stresses and exposures found in the marine environment.
NOTE Where forming part of a hose assembly, hose in accordance with any of the following standards meets
this requirement.
Table 1 — Hose manufacturing standards
Manufacturing Standard Max. operating pressure Application
EN 16436-1 Class 2 10 bar Regulated, appliance operating pressure only
Unregulated cylinder pressure and regulated appli-
EN 16436-1 Class 3 16 bar
ance operating pressure
EN 14800 70 mbar Regulated, appliance operating pressure only
6.3.4 Hose assemblies shall not be routed through an engine compartment.
6.3.5 Hose assemblies, including connections shall be:
— capable of being reached for inspection, removal or maintenance without removal of any permanent
craft structure;
— installed so as to avoid stress or tight radius turns;
— installed so that they are not subject to tension or kinking under any conditions of use
— installed above bilge water as high as practicable.
6.3.6 Where hose assemblies are used to directly connect appliances to the pressure regulation
device, the assembly shall be:
— of minimum practical length;
— continuous and have no joints or fittings from within the cylinder locker or cylinder housing to the
appliance, or the readily accessible shut off valve near the appliance (see 6.6.3).
Where two or more appliances are installed, a suitable manifold shall be located within the cylinder
locker or cylinder housing to enable the individual appliance supply line hose assemblies to be connected
to the pressure regulation device.
6.3.7 Low pressure hose assemblies used to connect:
— LPG supply line piping to pressure regulation devices, or
— LPG supply line piping to appliances
shall be of minimum practical length not exceeding 1 m.
NOTE Where a bubble leak detector is installed within a cylinder locker or cylinder housing, up to 1 m of
hose can be used between the cylinder mounted pressure regulation device and the detector, and up to 1m of
hose can be used within the locker or housing between the detector and LPG supply pipe.
6.3.8 High-pressure hose assemblies used to connect cylinders to pressure regulation devices shall
be of minimum practical length not exceeding 1 m.
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