SIST EN ISO 10239:2001

SLOVENSKI STANDARD
SIST EN ISO 10239:2001
01-junij-2001
Small craft - Liquefied petroleum gas (LPG) systems (ISO 10239:2000)
Small craft - Liquefied petroleum gas (LPG) systems (ISO 10239:2000)
Kleine Wasserfahrzeuge - Flüssiggas-Anlagen (LPG) (ISO 10239:2000)
Petits navires - Installations alimentées en gaz de pétrole liquéfiés (GPL) (ISO
10239:2000)
Ta slovenski standard je istoveten z: EN ISO 10239:2000
ICS:
47.080
SIST EN ISO 10239:2001 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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INTERNATIONAL ISO
STANDARD 10239
First edition
2000-09-01
Small craft — Liquefied petroleum gas
(LPG) systems
Petits navires — Installations alimentées en gaz de pétrole liquéfiés (GPL)
Reference number
ISO 10239:2000(E)
©
ISO 2000

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ISO 10239:2000(E)
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ii © ISO 2000 – All rights reserved

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ISO 10239:2000(E)
Contents Page
Foreword.iv
1 Scope .1
2 Normative references .1
3 Terms and definitions .2
4 General provisions .3
5 Pressure-reduction system .4
6 LPG supply-line system .4
7 Appliances.7
8 Location and installation of LPG cylinders.7
9 Ventilation.8
10 LPG installation system tests.8
11 Electrical devices for ignition protection .8
12 Owner's manual .9
13 Ducts and flues for air intake and combustion-product discharge.9
Annex A (informative) Design guidelines for pressure drop due to pipe resistance.10
Annex B (informative) Ventilation.11
Annex C (normative) Instructions to be included with the owner's manual.12
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ISO 10239:2000(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 3.
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 International Standard may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights.
International Standard ISO 10239 was prepared by Technical Committee ISO/TC 188, Small craft.
Annex C forms a normative part of this International Standard. Annexes A and B are for information only.
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INTERNATIONAL STANDARD ISO 10239:2000(E)
Small craft — Liquefied petroleum gas (LPG) systems
1 Scope
This International Standard covers permanently installed LPG systems and LPG burning appliances on small craft
of hull length up to 24 m, except for systems used on LPG-fueled propulsion engines or LPG-driven generators.
This International Standard does not cover appliances with directly attached gas cylinders such as portable self-
contained camping stoves or portable gas lamps.
NOTE 1 This International Standard is not intended to regulate technical requirements for LPG cylinders, which are subject
to national regulations.
NOTE 2 New designs, materials and methods of assembly giving at least equivalent results may be considered as complying
with the requirements of this International Standard when approved by a relevant body.
2 Normative references
The following normative documents contain provisions which, through reference in this text, constitute provisions of
this International Standard. For dated references, subsequent amendments to, or revisions of, any of these
publications do not apply. However, parties to agreements based on this International Standard are encouraged to
investigate the possibility of applying the most recent editions of the normative documents indicated below. For
undated references, the latest edition of the normative document referred to applies. Members of ISO and IEC
maintain registers of currently valid International Standards.
ISO 7-1:1994, Pipe threads where pressure-tight joints are made on the threads — Part 1: Dimensions, tolerances
and designation.
ISO 8846:1990, Small craft — Electrical devices — Protection against ignition of surrounding flammable gases.
1�
ISO 9094-1:— , Small craft — Fire protection — Part 1: Craft with a hull length of up to and including 15 m.
2�
ISO 10133:— , Small craft — Electrical systems — Extra-low-voltage d.c. installations.
ISO 10240:1995, Small craft — Owner's manual.
3�
ISO 13297:— , Small craft — Electrical systems — Alternating current installations.
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.
1� To be published.
2� To be published. (Revision of ISO 10133:1994)
3� To be published. (Revision of ISO 13297:1995)
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ISO 10239:2000(E)
4�
EN 1763-1:— , Flexible hose, tubing and assemblies for use with propane and butane in the vapour phase —
Part 1: Requirements for rubber and plastics hoses and tubing — Specification.
4)
EN 1763-2:— , Flexible hose, tubing and assemblies for use with propane and butane in the vapour phase —
Part 2: Requirements for nozzles, couplings and assemblies.
3 Terms and definitions
For the purposes of this International Standard, the following terms and definitions apply.
3.1
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 The principal components are propane, propene, butanes or butenes.
NOTE 2 LPG can be obtained as commercial butane, commercial propane or a mixture of the two.
3.2
cylinder housing
ventilated enclosure intended solely for storage of one or more LPG cylinders, pressure regulators and safety
devices and located on the exterior of the craft, where any leakage would flow overboard
3.3
cylinder locker
vapour-tight enclosure with an overboard drain intended solely for storage of one or more LPG cylinders in a
cockpit or recessed into the craft (see 8.3)
3.4
room-sealed appliance
appliance having a combustion system in which incoming combustion air and outgoing products of combustion
pass through sealed ductwork connected to the enclosed combustion chamber
3.5
LPG system
system consisting of an arrangement of cylinder(s), safety device(s), pressure regulator(s), connection(s), valve(s),
piping, tubing, hose, fitting(s) and devices intended to store, supply, monitor or control the flow of fuel gas up to and
including the appliance
NOTE The cylinders are replacement items and may not be supplied with the LPG system in the craft.
3.6
accessible
capable of being reached for inspection, removal or maintenance without removal of a permanent part of the craft
structure, with or without the use of tools
3.7
readily accessible
capable of being reached quickly and safely for effective use under emergency conditions without the use of tools
4� To be published.
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ISO 10239:2000(E)
3.8
unattended appliance
appliance intended to function without constant attention by an operator and which may cycle on and off
automatically, such as water heaters, refrigerators or cabin heaters
NOTE Stoves and ovens are not considered to be unattended appliances.
3.9
supply-pressure side
part of the LPG supply line directly exposed to pressure at the inlet of a pressure regulator in a liquefied petroleum
gas system
NOTE Vapour pressure propane at 20 °C = 0,7 MPa (7 bar)
Vapour pressure butane at 20 °C = 0,175 MPa (1,75 bar)
3.10
low-pressure side
part of the LPG supply line exposed to the regulated pressure of the gas regulator
3.11
pressure-reduction system (regulator or regulators)
devices used in the LPG system to reduce the gas pressure present in the LPG cylinder to the working pressure of
the appliances and maintain that pressure during use
3.12
piping
pipeline of rigid metallic construction
3.13
hose
pipeline of flexible material
3.14
shut-off valve
device to isolate an appliance from the gas supply
3.15
main shut-off valve
device to isolate the entire LPG system from the supply-pressure side
3.16
permanent label
indelibly marked label secured in place
3.17
flame-supervision device
device that has a sensing element, activated by presence or absence of a flame, that causes the inlet of the LPG
supply to a burner to be opened or closed
NOTE See EN 125.
4 General provisions
4.1 An LPG system and all its components shall be capable of withstanding storage at – 30 °Cto+60 °C, as
well as vibration and exposure in a marine environment.
4.2 LPG systems shall be of the vapour-withdrawal type, i. e. fuel released only under gas-phase conditions.
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ISO 10239:2000(E)
4.3 All LPG appliances installed on the craft shall be designed for use at the same working pressure.
5 Pressure-reduction system
5.1 Each LPG system shall be equipped with, or have provision for installation of, a pressure-reduction system
(3.11) designed to provide a fixed working pressure suitable for the consuming appliances but not more than
0,005 MPa (50 mbar). If a pressure regulator is not supplied with the system, a label indicating the working
pressure of the LPG appliances installed shall be affixed in the vicinity of the LPG cylinder installation.
5.2 The LPG pressure-reduction system shall have an overpressure device to prevent uncontrolled pressure
increase in the low-pressure side. Any gas discharge of the device shall be inside the cylinder locker or housing or
shall be separately vented outside the craft. The device may be a pressure-relief governor, pressure-relief valve or
an automatic safety shut-off valve.
5.3 The nominal regulated working pressure shall be indicated on the pressure regulator.
5.4 Pressure regulators of the external manual-adjustment type shall not be fitted.
5.5 The pressure regulator shall be located within the cylinder locker or housing.
5.6 If not rigidly connected to, and supported by, the cylinder connection, the pressure regulator 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 regulators shall be made of corrosion-resistant metallic material or have an coating, such as paint
or plastic, that is effective against external corrosion. Fasteners used shall be of corrosion-resistant material or
have a corrosion-resistant plating or coating.
6 LPG supply-line system
6.1 General
6.1.1 The LPG supply-line system shall be either a solid piping system in accordance with 6.2, except for short
hose connections to gimbaled stoves, or continuous hoses in accordance with 6.3.
6.1.2 Hoses shall be used to connect gimbaled stoves to their LPG supply, and supply piping to the pressure
regulator. The hose and its connections between supply piping and the pressure regulator shall be within the
cylinder locker or cylinder housing.
6.1.3 The piping and hose shall be sized so that the pressure drop due to pipe resistance does not reduce the
working pressure at any appliance below the value required by the appliance manufacturer when all appliances are
operating simultaneously. See annex A for guidance.
6.2 Piping
6.2.1 Only solid drawn copper piping or drawn stainless steel piping, which are galvanically compatible, shall be
used for rigid supply lines. The minimum wall thickness for piping of outside diameter equal to or less than 12 mm
shall be 0,8 mm and 1,5 mm for piping of outside diameter greater than 12 mm.
6.2.2 Except for bulkhead fittings, there shall be no joints or fittings in piping that passes through engine
compartments.
6.2.3 Metallic LPG supply piping routed through engine compartments shall be protected by conduit or trunking
or be supported by non-abrasive attachments which are no more than 300 mm apart.
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ISO 10239:2000(E)
6.2.4 Fittings for connections and joints in piping shall be metallic and of any of the following types:
� hard soldered connections;
� cutting-ring fittings (see 6.4.4 and 6.4.5);
� compression fittings made of copper alloy with solid- or thick-walled copper rings on copper piping;
� stainless steel rings on stainless steel piping.
The wall thickness of the ring shall be greater than or equal to 0,5 mm and a jointing compound shall not be used
on compression or flared fittings.
6.2.5 Piping shall be installed as high as practicable above the bilge water level.
6.2.6 Supply piping shall be made up with as few fittings as practicable. Joints and fittings shall be readily
accessible.
6.3 Hoses and hose lines
6.3.1 Hose assemblies for LPG installations shall meet the requirements of EN 1763-1 and EN 1763-2, Class 2
or 3 for the low-pressure side and Class 3 or 4 for the supply-pressure side.
6.3.2 Hoses shall not be routed through an engine compartment.
6.3.3 Hoses shall have permanently attached end fittings, such as swaged sleeve or sleeve and threaded insert,
in accordance with EN 1763–2, and shall be accessible for inspection over their entire length. Connections shall be
readily accessible.
6.3.4 Hose connections shall be stress free, i.e. not subjected to tension or kinking under any conditions of use.
6.3.5 Hose used for the LPG supply line shall be continuous and have no joints or fittings from within the cylinder
locker or cylinder housing to the appliances, or the readily accessible shut-off valve near the appliance (see 6.6.3)
except where metallic supply piping is connected to a flexible hose leading to a movable appliance, such as a
gimbaled stove.
6.4 Materials
6.4.1 The melting point of materials at welded or brazed connections shall be not less than 450 °C.
6.4.2 Fittings shall be galvanically compatible with the metallic piping to which they are connected.
6.4.3 Hose clamps, if used to secure cylinder-locker vent hoses, shall be made of corrosion-resistant material,
such as stainless steel, of type 18Cr 8Ni, or equivalent, and be reusable.
6.4.4 End-connecting fittings shall be of corrosion-resistant material such as brass or stainless steel. Brass end
fittings and cutting rings shall not contain more than 15 % zinc.
6.4.5 Where cutting-ring fittings are used in conjunction with copper piping, a brass insertion sleeve and brass
cutting ring shall be fitted. All components shall be matched, i.e. of the same series.
6.5 Installation
6.5.1 Piping shall not have direct contact wit
...