prEN ISO 9094

SLOVENSKI STANDARD
01-december-2025
Mala plovila - Požarna zaščita (ISO/DIS 9094:2025)
Small craft - Fire protection (ISO/DIS 9094:2025)
Kleine Wasserfahrzeuge - Brandschutz (ISO/DIS 9094:2025)
Petits navires - Protection contre l'incendie (ISO/DIS 9094:2025)
Ta slovenski standard je istoveten z: prEN ISO 9094
ICS:
13.220.20 Požarna zaščita Fire protection
47.080 Čolni Small craft
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

DRAFT
International
Standard
ISO/DIS 9094
ISO/TC 188
Small craft — Fire protection
Secretariat: SIS
Petits navires — Protection contre l'incendie
Voting begins on:
2025-09-02
ICS: 47.080
Voting terminates on:
2025-11-25
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENTS AND APPROVAL. IT
IS THEREFORE SUBJECT TO CHANGE
AND MAY NOT BE REFERRED TO AS AN
INTERNATIONAL STANDARD UNTIL
PUBLISHED AS SUCH.
This document has not been edited by the ISO Central Secretariat.
IN ADDITION TO THEIR EVALUATION AS
BEING ACCEPTABLE FOR INDUSTRIAL,
TECHNOLOGICAL, COMMERCIAL AND
USER PURPOSES, DRAFT INTERNATIONAL
STANDARDS MAY ON OCCASION HAVE TO
ISO/CEN PARALLEL PROCESSING
BE CONSIDERED IN THE LIGHT OF THEIR
POTENTIAL TO BECOME STANDARDS TO
WHICH REFERENCE MAY BE MADE IN
NATIONAL REGULATIONS.
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.
Reference number
ISO/DIS 9094:2025(en)
DRAFT
ISO/DIS 9094:2025(en)
International
Standard
ISO/DIS 9094
ISO/TC 188
Small craft — Fire protection
Secretariat: SIS
Petits navires — Protection contre l'incendie
Voting begins on:
ICS: 47.080
Voting terminates on:
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENTS AND APPROVAL. IT
IS THEREFORE SUBJECT TO CHANGE
AND MAY NOT BE REFERRED TO AS AN
INTERNATIONAL STANDARD UNTIL
PUBLISHED AS SUCH.
This document has not been edited by the ISO Central Secretariat.
IN ADDITION TO THEIR EVALUATION AS
BEING ACCEPTABLE FOR INDUSTRIAL,
© ISO 2025
TECHNOLOGICAL, COMMERCIAL AND
USER PURPOSES, DRAFT INTERNATIONAL
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
STANDARDS MAY ON OCCASION HAVE TO
ISO/CEN PARALLEL PROCESSING
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
BE CONSIDERED IN THE LIGHT OF THEIR
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
POTENTIAL TO BECOME STANDARDS TO
WHICH REFERENCE MAY BE MADE IN
or ISO’s member body in the country of the requester.
NATIONAL REGULATIONS.
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TO SUBMIT, WITH THEIR COMMENTS,
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NOTIFICATION OF ANY RELEVANT PATENT
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PROVIDE SUPPORTING DOCUMENTATION.
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland Reference number
ISO/DIS 9094:2025(en)
ii
ISO/DIS 9094:2025(en)
Contents Page
Foreword .v
Introduction .vi
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
4 Fire prevention . 4
4.1 Cooking and heating appliances .4
4.1.1 General .4
4.1.2 Appliances with flues .4
4.1.3 Permanently installed fuel systems .4
4.2 Materials near cooking or heating appliances .4
4.2.1 General .4
4.2.2 Protection from open flames .5
4.2.3 Protection from radiated heat devices .6
4.2.4 Protection from solid fuel appliances .7
4.2.5 Protection from electrical appliances .7
4.3 Engine and fuel compartments and exhausts .7
4.3.1 General requirements not dependent on fuel type .7
4.3.2 Specific requirements for compartments containing fixed petrol engines and
permanently installed petrol tanks .8
4.3.3 Specific requirements for compartments containing portable petrol-engine
equipment and portable petrol tanks or containers .9
4.4 Electrical installations .9
4.5 Liquefied petroleum gas (LPG) systems.9
4.5.1 General .9
4.5.2 LPG systems not used for propulsion .9
4.5.3 LPG systems used for propulsion .9
4.5.4 Self-contained portable appliances .9
4.6 Ignition protection .9
4.7 Decklights .10
5 Fire detection . 10
6 Fire escape .10
6.1 Fire escape routes .10
6.1.1 General .10
6.2 Fire exits . . .11
6.2.1 General .11
6.2.2 Minimum clear dimensions .11
6.2.3 Positioning fire exits .11
6.2.4 Capability to open fire exits .11
6.2.5 Deck hatches designated as fire exits . 12
6.2.6 Watertightness of fire exits . 12
7 Fire-fighting equipment .12
7.1 Purpose . 12
7.2 Protection of habitable spaces containing sleeping bunks . 12
7.3 Protection of habitable spaces containing cooking and heating appliances . 12
7.4 Protection of engine compartment(s) . 13
7.4.1 General . 13
7.4.2 Fire ports . 13
7.5 Portable fire extinguishers . . .14
7.5.1 Purpose .14
7.5.2 General requirements .14
7.5.3 Carbon dioxide (CO ) extinguishers.14
iii
ISO/DIS 9094:2025(en)
7.5.4 Location and capacity of portable fire extinguishers . 15
7.6 Fixed fire extinguishing systems . 15
7.6.1 Purpose . 15
7.6.2 General requirements . 15
7.6.3 General installation requirements .16
7.6.4 Activation of the system .17
7.7 Fire blanket.17
8 Displayed information .18
8.1 General requirements .18
8.2 Fixed system warning for non-asphyxiant medium .18
8.3 CO portable extinguisher .18
8.4 Storage of ladder to escape hatch .18
8.5 Displayed symbol requirements .19
9 Owner’s manual . 19
Annex A (normative) Information in the owner’s manual .20
Annex B (informative) Classification of fires, fire ratings according to EN 3-7
and selection of portable fire extinguishers .23
Annex C (informative) Selection of fixed fire extinguishing systems .25
Bibliography .27

iv
ISO/DIS 9094:2025(en)
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 (reference 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 (reference 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), reference
www.iso.org/iso/foreword.html.
This document was prepared by Technical Committee ISO/TC 88, 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 third edition cancels and replaces the second edition (ISO 9094:2022), which has been technically
revised.
The main changes are as follows:
— 4.2.3.2 updated appliance manufacturer instructions;
— 4.2.4.1 updated appliance manufacturer instructions;
— Figure 1 to expand the understanding of zone protection has been updated;
— 6.1.1 updated identification of escape routes and exits;
— Clause 8, “Displayed information”, has been updated;
— the Bibliography has been updated.
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.

v
ISO/DIS 9094:2025(en)
Introduction
This document covers the prevention of fire and the protection of life in case of fire on small craft.
It is intended to ensure that the design and layout of the craft and the type of equipment installed minimize
the risk and spread of fire and that every habitable craft is provided with viable means of escape in the event
of fire.
The requirements in this document may not be effective against fires of some battery chemistries (for
example lithium-based products). Battery manufacturers should be consulted for appropriate methods of
fire suppression.
vi
DRAFT International Standard ISO/DIS 9094:2025(en)
Small craft — Fire protection
1 Scope
This document defines a practical degree of fire prevention and protection intended to provide enough time
for occupants to escape a fire on board small craft.
It applies to small craft having a length of the hull (L ) of up to 24 m except for personal watercraft.
H
This document does not cover:
— the design and installation of permanently installed galley stoves and heating appliances (including
components used to distribute the heat) using fuels that are liquid at atmospheric pressure on small
craft, which are covered by ISO 14895;
— carbon monoxide detecting systems, which are covered by ISO 12133.
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.
ISO 4589-3, Plastics — Determination of burning behaviour by oxygen index — Part 3: Elevated-temperature test
ISO 7165, Fire fighting — Portable fire extinguishers — Performance and construction
ISO 8846, Small craft — Electrical devices — Protection against ignition of surrounding flammable gases
ISO 10088, Small craft — Permanently installed fuel systems
ISO 10239, Small craft — Liquefied petroleum gas (LPG) systems
ISO 11105, Small craft — Ventilation of petrol engine and/or petrol tank compartments
ISO 11105:2020, Small craft — Ventilation of petrol engine and/or petrol tank compartments
ISO 12216, Small craft — Windows, portlights, hatches, deadlights and doors — Strength and watertightness
requirements
ISO 13297, Small craft — Electrical systems — Alternating and direct current installations
ISO 14895, Small craft — Liquid-fuelled galley stoves and heating appliances
ISO 16315, Small craft - Electric propulsion system
ISO 21487, Small craft — Permanently installed petrol and diesel fuel tanks
IEC 60092-507, Electrical installations in ships - Part 507: Small vessels
EN 3-7, Portable fire extinguishers - Part 7: Characteristics, performance requirements and test methods
EN 1869, Fire blankets
EN 15609, LPG equipment and accessories - LPG propulsion systems for boats, yachts and other watercraft -
Installation requirements
ISO/DIS 9094:2025(en)
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
accessible
capable of being reached for inspection, removal or maintenance without removal of permanent craft
structure
Note 1 to entry: Hatches are not regarded as permanent craft structures in this sense even if tools are needed to open them.
3.2
readily accessible
capable of being reached quickly and safely for effective use under emergency conditions without the use of tools
3.3
engine compartment
compartment of the craft, containing spark or compression ignition internal combustion engine(s)
3.4
fixed fire extinguishing system
fixed system
fire-fighting system having all components fixed in position and having automatic activation and/or manual
release from outside of the space protected
3.5
fire exit
door, hatch, or aperture designated as an exit in case of fire and leading either directly, or via other areas of
the craft, to the open air
3.6
open flame device
appliance where direct bodily contact with an exposed open flame is possible during normal operation
3.7
petrol
hydrocarbon fuel or blends thereof that is liquid at atmospheric pressure and is used in spark ignition engines
Note 1 to entry: In this context, kerosene is not regarded as petrol.
3.8
diesel
hydrocarbon fuel or blends thereof that is liquid at atmospheric pressure and is used in compression
ignition engines
3.9
asphyxiant
fire extinguishing medium that can dilute or displace oxygen in air, leading to asphyxiation if inhaled
3.10
toxic
fire extinguishing medium that can be poisonous or harmful if inhaled
3.11
escape route
way through which a person has to pass to access the nearest craft exit or fire exit (3.5)

ISO/DIS 9094:2025(en)
3.12
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
rooms are not included.
3.13
enclosed habitable space
habitable space (3.12) separated from the nearest fire exit (3.5) by bulkheads and/or solid doors
3.14
radiated heat device
appliance intended to transfer heat from its surfaces during normal operation by way of radiation
3.15
cooking appliance
appliance intended to be used for the preparation of food and that makes use of a heat source
3.16
heating appliance
appliance intended to be used for comfort heating with or without integral heat sources
3.17
solid fuel appliance
heating appliance (3.16) intended to be fuelled by solid minerals fuel, natural or manufactured wood logs or
pellets, including solidified alcohol
3.18
decklight
translucent deck fitting providing daytime lighting to inboard spaces by refracting sunlight
Note 1 to entry: Decklights are usually no more than 200 mm in diameter.
3.19
shut off damper
air damper or rated fire damper device that closes or reduces air flow at engine space air intakes and/or
exhaust ventilators
3.20
portlight
openable window in the hull of the craft below the sheer line and above the waterline
3.21
fire resistant
the ability of a material to self-extinguish upon the removal of an ignition source
3.22
craft
small craft
recreational boat, and other watercraft using similar equipment, of up to 24 m length of hull (L )
H
[SOURCE: ISO 8666:2020, 3.15]
ISO/DIS 9094:2025(en)
4 Fire prevention
4.1 Cooking and heating appliances
4.1.1 General
Cooking and heating appliances shall be suitable for use in a marine environment.
NOTE When selecting appliances, consideration should be given to the size and design of the space into which the
appliance is to be installed and the appliance’s stated heat output.
Cooking and heating appliances shall be installed in accordance with the manufacturer’s instructions for
small craft installations and secured against accidental or unintended movement. Gimballed appliances
shall include a retaining mechanism that meets this requirement.
Stove-top cooking surfaces shall be installed to prevent both deep and shallow cooking utensils from sliding
across or off the stove, at pitch angles up to 15° for all craft, and at heel angles up to 30° for sailing craft or up
to 15° for engine-driven craft and multihulls (sail and power).
4.1.2 Appliances with flues
Where flues and associated flue pipes are installed, they shall be:
— installed in accordance with manufacturer’s instructions;
— routed directly to the open air so that no exhaust gases can enter the interior of the craft;
— insulated or shielded in accordance with 4.2.3.1, to avoid overheating or damage to adjacent material or
to the structure of the craft.
4.1.3 Permanently installed fuel systems
Permanently installed tanks and supply lines using fuel which is liquid at atmospheric pressure shall meet
the applicable requirements of ISO 21487 and ISO 10088. In addition:
— permanently installed fuel tanks shall be installed outside Zone II according to Figure 1;
— filler openings for tanks shall be prominently identified to indicate the type of fuel to be used with the system;
— unless covered by the design and installation requirements of ISO 14895, a readily accessible shut-off
valve shall be installed in the supply line at the tank connection. If this is outside the space containing
the appliance, a second valve shall be fitted in the fuel line in the space containing the appliance, outside
Zone II according to Figure 1, but not behind the appliance. This requirement does not apply:
— where the tank is located lower than the cooking appliance/heater and there is no possibility of back
siphoning; or
— where a fusible valve that prevents fuel from continuing to flow to an appliance in the event of a fire
is installed in the appliance or near to the final fuel supply joint to it.
4.2 Materials near cooking or heating appliances
4.2.1 General
Materials and finishes (surfaces) used in the vicinity of open flame devices within the ranges as defined in
Figure 1 shall comply with 4.2.2, taking into account the movement of the burner at pitch angles up to 15° for
all craft, and up to a heel angle of 30° for sailing craft or up to 15° for engine-driven craft and multihulls (sail
and power).
These requirements do not apply to the materials of the appliance itself.

ISO/DIS 9094:2025(en)
4.2.2 Protection from open flames
4.2.2.1 Materials installed in or that can enter Zone I shall not support combustion.
4.2.2.2 Materials installed in or that can enter Zone II shall either:
— not support combustion; or
— be thermally insulated from the supporting structure to prevent combustion of the supporting structure,
if the surface temperature exceeds 80 °C during the fire test as specified in 4.2.2.4.
4.2.2.3 Materials intended to not support combustion shall have an oxygen index (OI) of at least 21
according to ISO 4589-3 at ambient temperature of 60 °C.
4.2.2.4 For conducting the test, each of the open flame burners shall be covered by a metal plate of 200 mm
diameter and a thickness of 3 mm ± 0,2 mm. The flames shall burn for 10 min, the controls being set to the
maximum. At the end of the burning period, the surface temperature of any material around the open flame
device shall be measured.
NOTE Thermal insulation can be achieved by an air gap, a radiation shielding surface, or the use of a suitable
material.
ISO/DIS 9094:2025(en)
Dimensions in millimetres
Key
1 Zone I — area of the burner extended vertically 350 mm from its surface and horizontally 100 mm beyond its
periphery
2a Zone IIa — for LPG, CNG or electric appliances: area of the burner extended vertically 500 mm from its surface
and horizontally 250 mm beyond its periphery
2b Zone IIb — for liquid fuel appliances: area of the burner extended vertically 700 mm from its surface and
horizontally 250 mm beyond its periphery
Figure 1 — Areas of special material requirements
4.2.3 Protection from radiated heat devices
4.2.3.1 If their surface temperature can exceed 85 °C, combustible materials adjacent to radiated heat
devices and other appliances, whether exposed or covered, shall be thermally insulated to ensure that the

ISO/DIS 9094:2025(en)
surface temperature of the combustible materials does not exceed 85 °C with the appliance operating at its
maximum nominal output.
4.2.3.2 Materials used to shield the combustible surface shall be ceramics, metals, non-combustible
insulation board or other materials with similar fireproof characteristics.
NOTE 1 Thermal insulation can be achieved by an air gap, a radiation shielding surface, or the use of a suitable
material.
Appliance manufacturer’s instructions shall be followed.
[1]
NOTE 2 Appliance temperature tests are found in EN 16510-1:2022 .
4.2.4 Protection from solid fuel appliances
4.2.4.1 Solid fuel appliances shall stand on and be secured to a hearth designed and constructed of non-
combustible materials, enough to support the weight of the appliance, and of dimensions such that, in normal
use, it prevents ignition of floor coverings through radiated heat or in the event a hot solid fuel falls from the
appliance.
Appliance manufacturer’s instructions shall be followed.
[1]
NOTE Appliance temperature tests are found in EN 16510-1:2022 .
4.2.4.2 Combustible fixtures, fittings or furniture other than flooring and its covering shall not be
positioned within the distance from solid fuel appliances specified by the manufacturer or, if no distance is
specified, they shall not be positioned within 600 mm of the closest point to the appliance.
4.2.4.3 Free-hanging combustible material, such as curtains or blinds adjacent to a solid fuel appliance, shall
not be fitted within less than the minimum distance specified by the manufacturer or, if no distance is specified,
it shall not be fitted within 600 mm of the closest point to the appliance and any uninsulated flue pipe.
NOTE Careful consideration is given in the selection of materials in all other parts of habitable spaces to ensure,
as far as practical, that the materials are not readily ignitable and/or have low flame spread characteristics and do not
readily give rise to toxic or explosive hazards at elevated temperatures.
4.2.5 Protection from electrical appliances
4.2.5.1 Free hanging curtains or other fabrics adjacent to electrical cooking hobs shall not be fitted in
Zone I according to Figure 1.
4.2.5.2 Electrical heating appliance elements shall be installed to prevent direct exposure of adjacent
materials such that clothing and curtains cannot be scorched or ignited by radiant heat.
4.3 Engine and fuel compartments and exhausts
4.3.1 General requirements not dependent on fuel type
4.3.1.1 Insulation material
Material used for the insulation of engine compartments shall
— present a non-fuel absorbent surface towards the engine, and
— not support combustion and have an oxygen index (OI) of at least 21 according to ISO 4589-3 at an
ambient temperature of 60 °C.
ISO/DIS 9094:2025(en)
4.3.1.2 Permanently installed fuel tanks
Permanently installed fuel tanks shall be designed and constructed in accordance with the requirements of
ISO 21487 and shall be installed in accordance with ISO 10088.
4.3.1.3 Bilge cleaning
Bilges and other spaces that can contain spillage of petrol and diesel shall be accessible for cleaning and
shall have a non-fuel absorbent floor surface.
4.3.1.4 Checking of exhaust water injection
A visual or audible signal at the main helm position shall indicate a loss of cooling water when a non-metallic
component or flexible hose is part of a water-cooled exhaust system.
NOTE A temperature or flow alarm can suffice.
4.3.2 Specific requirements for compartments containing fixed petrol engines and permanently
installed petrol tanks
4.3.2.1 General
Compartments or spaces containing fixed petrol engines and/or permanently installed petrol tanks shall be
separated from habitable spaces. This is met where the structure fulfils the following requirements:
a) the boundaries shall be continuously sealed (e.g. welded, brazed, glued, laminated or otherwise sealed);
b) penetrations for cables, piping, etc., shall be closed by fittings, seals and/or sealants;
c) access openings such as doors, hatches, etc., shall be equipped with fittings so they can be secured to
minimize the flow of gas or vapours in the closed position.
The effectiveness of the boundary joints or sealing shall be demonstrated either by documentation or visual
inspection.
4.3.2.2 Ignition protection
All electrical equipment shall be ignition protected as specified in 4.6.
4.3.2.3 Ventilation
Compartments or spaces containing either fixed petrol engines or permanently installed petrol tanks shall
meet the ventilation requirements of ISO 11105.
4.3.2.4 Insulation of permanently installed petrol fuel tanks from heat sources
Petrol fuel tanks shall be insulated from the engine or other source of heat by either
a) a thermal barrier between tank and engine, engine-mounted components including fuel and water
supply lines, and any source of heat (e.g. bulkhead, wall, insulating material, etc.), or
b) an air gap to prevent any contact between the petrol fuel tank and engine, engine-mounted components,
and any source of heat, the gap being wide enough to allow for servicing the engine and related
components.
Any air gap shall be at least:
— 100 mm between a petrol engine and a petrol fuel tank;
— 250 mm between exhaust components having a temperature exceeding 90 °C and a petrol fuel tank.

ISO/DIS 9094:2025(en)
NOTE Air gap requirements are addressed in ISO 10088.
4.3.3 Specific requirements for compartments containing portable petrol-engine equipment and
portable petrol tanks or containers
Compartments or spaces designed to contain portable petrol-engine equipment, tanks and containers shall
meet the requirements of 4.3.1.3, 4.3.2.1 and 4.3.2.2, and meet ISO 11105:2020, Clause 5.
Spaces used for the storage of outboard motors and portable generators with integral petrol tanks and
‘garage’ spaces containing personal watercraft shall be included in this requirement.
4.4 Electrical installations
The requirements for electrical systems to minimize the risk of fire and to prevent the accumulation of
explosive gases which might be emitted from batteries are set out in the following ISO standards:
— direct current electrical installations operating at not more than DC 50 V shall be in accordance with
ISO 13297;
— single phase electrical operating at not more than AC 250 V shall be in accordance with ISO 13297;
— three phase electrical systems operating at not more than AC 500 V shall be in accordance with
IEC 60092-507;
— electric propulsion systems shall be in accordance with ISO 16315.
NOTE Battery types common in electric propulsion might require specialized fire extinguishing medium.
4.5 Liquefied petroleum gas (LPG) systems
4.5.1 General
LPG appliances shall not be installed in engine compartments unless this location is in accordance with the
manufacturer’s instructions for installation in small craft.
Clearance between dry exhaust components or equivalent heat sources and LPG cylinders, pressure
regulators and safety devices shall be at least 250 mm, unless an equivalent thermal barrier is provided.
4.5.2 LPG systems not used for propulsion
LPG systems shall be in accordance with ISO 10239.
4.5.3 LPG systems used for propulsion
LPG propulsion systems shall be installed in accordance with EN 15609.
4.5.4 Self-contained portable appliances
Self-contained portable appliances having LPG cylinders or containers attached shall be stored in accordance
with the LPG cylinder storage requirements of ISO 10239.
4.6 Ignition protection
Only ignition-protected items in accordance with ISO 8846shall be installed in compartments, lockers or
housings that contain:
— petrol engines;
— petrol fuel tanks;
ISO/DIS 9094:2025(en)
— petrol fuel line fittings;
— LPG cylinders (permanent and portable);
— LPG line fittings, with the exception of connections in the accommodation space near the appliance.
4.7 Decklights
Exposed materials within 300 mm below decklights shall be ceramics, aluminium, ferrous metals or other
materials with similar fireproof characteristics, unless the decklight, by design, does not provide a focal point.
5 Fire detection
A fire detection device to alert craft occupants to the outbreak of fire shall be installed on craft with more
than one habitable space. The device shall be installed according to the device manufacturer’s instructions.
NOTE Shower and toilet compartments are not an additional habitable space.
Fire detection devices (e.g. smoke detectors or heat detectors) shall:
— be selected for the space they monitor;
— provide an audible alarm with a minimum rating of 85 dB;
— be connected to the on-board electrical supply or be independently powered;
— be at a minimum located in the habitable space(s) and the engine compartment.
Fire detection devices sshall be constructed to a recognized standard for marine environments.
6 Fire escape
6.1 Fire escape routes
6.1.1 General
Habitable spaces shall be provided with at least one fire escape route leading to the open air.
A fire escape route shall:
a) have a passage through doorways or hatches complying with the minimum requirements for fire exits
(reference 6.2);
b) not be obstructed by fixtures, fittings or furniture.
No escape route shall pass directly over an open flame appliance or a radiated heat device.
Where there is more than one escape route(s) provided, not more than one route shall pass over, beside or
through an engine compartment.
The distance to the nearest fire exit from each habitable space and/or bottom step of a staircase leading to
the next habitable space or open air shall not exceed the greater of 6 m or L /2,5, (L = length of hull). The
H H
distance shall be measured in the horizontal plane, following along the escape route, between the nearest
part of the fire exit and the farthest
— point where a person can stand (minimum height 1,60 m), or
— midpoint of a bunk,
whichever is greater.
ISO/DIS 9094:2025(en)
Additionally, the fire escape route for enclosed habitable spaces for sleeping shall have:
c) its middle line passing not less than 500 mm from the centre of the closest burner of any open flame
appliance, or else the distance measured along the middle line, from the cabin threshold to the bottom
of the stairs leading to the open air, shall be less than 2 m;
d) a fire detection device(s) provided in accordance with Clause 5, installed between any open flame
appliance and the fire exit along the distance of the escape route;
e) a portable extinguisher suitably sized as per Table 1, located in the escape route prior to reaching the
appliance.
The description of escape routes and the location of fire exits shall comply with Clause A.4.
Craft with more than one habitable space shall identify the escape routes and exits by a designated ISO or
national symbol.
6.2 Fire exits
6.2.1 General
An exit not specifically designated as a fire exit may be considered as a fire exit if it fulfils the requirements
in 6.2.2 to 6.2.6.
6.2.2 Minimum clear dimensions
Any fire exit from a habitable space shall have the following minimum clear openings:
— circular shape: 450 mm diameter;
— any other shape: minimum dimension of 380 mm, and 0,18 m area; the dimensions shall be large enough
to allow for a 380 mm diameter circle to be inscribed after taking account of any restriction introduced
by any hinges, stays, etc.; reference Figure 2.
Dimensions in millimetres
Figure 2— Measurement of minimum clear opening
6.2.3 Positioning fire exits
Fire exits shall be positioned in an unobstructed and readily accessible location.
6.2.4 Capability to open fire exits
Fire exits leading to the weather deck or to the open air shall be capable of being opened without the use
of tools, from the inside and the outside when closed and unlocked. The requirement does not apply to
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