M/542 - Recreational craft

This document specifies requirements for electrically operated bilge pumps intended for use in
removing bilge water. It applies to:
— direct current (DC) bilge pumps which operate at a nominal voltage not exceeding 50 V; and
— single phase alternating current (AC) bilge pumps which operate at a nominal voltage not
exceeding 250 V.
It does not cover pumps intended for damage control.

This document specifies the requirements for the design, construction and installation of the following
types of DC and AC electrical systems, installed on small craft either individually or in combination:
a) extra-low-voltage direct current (DC) electrical systems that operate at nominal potentials of
50 V DC or less;
b) single-phase alternating current (AC) systems that operate at a nominal voltage not exceeding
AC 250 V.
This document does not cover the following:
— electrical propulsion systems of direct current less than 1 500 V DC, single-phase alternating
current up to 1 000 V AC, and three-phase alternating current up to 1 000 V AC, which are addressed
by ISO 16315;
— any conductor that is part of an outboard engine assembly and that does not extend beyond the
outboard engine manufacturers supplied cowling;
— three-phase AC installations that operate at a nominal voltage not exceeding 500 V AC, which are
addressed by IEC 60092-507.

This document specifies design, construction, installation and test requirements for remote mechanical
cable steering systems and the output ram interface point to rudders, jet drives, outboard and
sterndrive engines for small craft.
It is applicable to three distinct classes of steering systems for use on various types of craft:
— standard duty steering systems, for small craft with single and twin installations of outboard
engines with a total over 15 kW power, and with rudders, sterndrives, and water-jet drives;
— light duty steering systems, for small craft with a single outboard engine of 15 kW to 40 kW power;
— mini-jet steering systems, excluding personal watercraft.
NOTE Standard and light duty steering systems are mechanically interchangeable. A standard duty steering
system can be used on a craft designed for a light duty system. However, a light duty steering system cannot
be used on a craft that requires a standard duty steering system. Mini-jet steering systems are mechanically
differentiated from the previously mentioned systems and can only be used on mini-jet craft as defined in this
document.
This document does not address emergency means for steering the craft.

This document specifies general requirements and physical tests for non-fire-resistant hoses for
conveying petrol or petrol blended with ethanol, and diesel fuel or diesel fuel blended with FAME,
designed for a working pressure not exceeding 0,34 MPa for hoses with inner diameter up to and
including 10 mm, and 0,25 MPa for hoses up to 63 mm inner diameter in small craft. .
It applies to hoses for small craft with permanently installed fuel systems.
Specifications for fire-resistant hoses are given in ISO 7840:2021. Specifications for permanently
installed fuel systems are given in ISO 10088:2013.

This document specifies requirements for the design, construction and installation of sewage treatment systems on small craft.
It does not address waste retention systems, nor accidental discharge prevention of pollutants (e.g. oil, fuel) overboard.
It does not address the technical discharge limits of a sewage treatment unit, subject to certain international as well as national regulations.

This document specifies general requirements and physical tests for fire-resistant hoses for conveying
petrol or petrol blended with ethanol, and diesel fuel or diesel fuel blended with FAME, designed for a
working pressure not exceeding 0,34 MPa for hoses with inner diameter up to and including 10 mm,
and 0,25 MPa for hoses up to 63 mm inner diameter in small craft.
It applies to hoses for small craft with permanently installed fuel systems. It does not apply to hoses
entirely within the splash well at the stern of the craft connected directly to an outboard engine.
Specifications for non-fire-resistant fuel hoses are given in ISO 8469:2021. Specifications for
permanently installed fuel systems are given in ISO 10088:2013.

This document establishes requirements for the design and installation of engine-mounted fuel, oil and
electrical components on diesel inboard-mounted engines for minimizing fuel leakage, risk of electric
shock and the risk of and/or the spread of fire on small craft of hull length up to 24 m in accordance
with ISO 8666.

This document specifies design and testing requirements for steering wheels for small craft.

This document specifies requirements for through-hull fittings, seacocks, hose connections, their
fittings and their installation in small craft with a length of hull, LH, as defined in ISO 8666:2020, of up
to 24 m.
This document is not applicable to engine and heater exhaust fittings, and sail drive through-hull
fittings.

This document defines the dimensions, local design pressures and global loads acting on multihull
craft with a hull length (LH) or load line length of up to 24 m (see Note). It considers all parts of the
craft that are assumed watertight or weathertight when assessing stability, freeboard and buoyancy in
accordance with ISO 12217 (all parts). Scantlings corresponding to the local design pressures are then
assessed using ISO 12215-5.
NOTE The load line length is defined in the OMI "International Load Lines Convention 1966/2005", it can
be smaller than LH for craft with overhangs. This length also sets up at 24 m the lower limit of several IMO
conventions.
This document is applicable to multihulls built from the same materials as in ISO 12215-5, in intact
condition, and of the two following types:
— recreational craft, including recreational charter vessels;
— commercial craft and workboats.
It is not applicable to multihull racing craft designed only for professional racing.
This document is applicable to the structures supporting windows, portlights, hatches, deadlights
and doors.
For the complete scantlings of the craft, this document is intended to be used in conjunction with
ISO 12215-8 for rudders, ISO 12215-9 for appendages of sailing craft and ISO 12215-10 for rig loads and
rig attachment in sailing craft. ISO 12215-6 can be used for additional details.
Throughout this document, unless otherwise specified, dimensions are in (m), areas in (m2), masses
in (kg), forces in (N), moments in (Nm), Pressures in (kN/m2) (1 kN/m2 = 1 kPa), stresses and elastic
modulus in (N/mm2) (1 N/mm2 = 1 MPa).

This document establishes definitions of main dimensions and related data and of mass specifications
and loading conditions. It applies to small craft having a length of the hull (LH) of up to 24 m.

This document specifies methods for the determination of:
— the design loads and design stresses on rig elements; and
— the loads and scantlings of rig attachments and mast steps/pillars;
on monohull and multihulls sailing craft.
It also gives, in Annexes, "established practices" for the assessment of mast steps/pillars or chainplates
NOTE 1 Other engineering methods can be used provided the design loads and design stresses are used.
This document is applicable to craft with a hull length LH up to 24 m but it can also be applied to craft up
to 24 m load line length.
NOTE 2 The load line length is defined in the OMI "International Load Lines Convention 1966/2005", it is
smaller than LH. This length also sets up, at 24 m, the lower limit of several IMO conventions.
Scantlings derived from this document are primarily intended to apply to recreational craft, including
charter vessels.
This document is not applicable to racing craft designed only for professional racing.
This document only considers the loads exerted when sailing. Any loads that may result from other
situations are not considered in this document.
Throughout this document, and unless otherwise specified, dimensions are in (m), areas in (m2), masses
in (kg), forces in (N), moments in (N m), stresses and elastic modulus in N/mm2 (1 N / mm2 = 1 Mpa).
Unless otherwise stated, the craft is assessed in fully loaded ready for use condition.

This document specifies requirements for the field of vision from the steering position, forward
(horizontally and vertically) and astern, for small craft up to 24 m length of hull (LH) in accordance with
ISO 8666:2016.

EN-ISO 25197 establishes the requirements for the design, construction and testing of electrical/electronic steering, shift and throttle systems and dynamic positioning control systems, or combinations thereof, on small craft of up to 24 m length of hull.This document does not apply to electric trolling motors and autopilot systems on sailing craft.

This document specifies requirements for the ventilation of petrol engine and petrol tank compartments
in small craft having petrol engines for propulsion, electrical generation or mechanical power, to prevent
the accumulation of explosive gases in these compartments. Personal watercraft are not covered in this
document.

This document specifies requirements for the ventilation of petrol engine and petrol tank compartments in small craft having petrol engines for propulsion, electrical generation or mechanical power, to prevent the accumulation of explosive gases in these compartments. Personal watercraft are not covered in this document.

This document specifies requirements and information for inclusion in the owner's manual of small craft to enable the owner/operator to use the craft safely.

This document defines the dimensions, design local pressures, mechanical properties and design
stresses for the scantlings determination of monohull small craft with a hull length (LH) or a load line
length (see NOTE 1) of up to 24 m. It considers all parts of the craft that are assumed to be watertight or
weathertight when assessing stability, freeboard and buoyancy in accordance with ISO 12217.
NOTE 1 The load line length is defined in the IMO "International Load Lines Convention 1966/2005", it
can be larger than LH for craft with overhangs. This length also sets up at 24 m the lower limit of several IMO
conventions.
The main core of this document determines the local design pressures and stresses for monohulls and
details the possible scantlings methods derived from these pressures and stresses, both for monohulls
and multihulls (see NOTE 2). The assessment process requires, where relevant, the application of
Annexes.
This document is applicable to small craft, in intact condition, of the two following types:
— recreational craft, including recreational charter vessels;
— small commercial craft and workboats, see Clause 12 and Annex J.
It is not applicable to racing craft designed only for professional racing.
NOTE 2 Local pressures and stresses for multihulls are given in ISO 12215-7.
This document is applicable to the structures supporting windows, portlights, hatches, deadlights,
and doors.
For the complete scantlings of the craft, this document is intended to be used with ISO 12215-8 for
rudders, ISO 12215-9 for appendages and ISO 12215-10 for rig loads and rig attachments.
This document covers small craft built from the following materials:
— fibre-reinforced plastics, either in single skin or sandwich construction;
— aluminium or steel alloys;
— glued wood or plywood (single skin or sandwich), excluding traditional wood construction;
— non-reinforced plastics for craft with a hull length less than 6 m (see Annex D).
Throughout this document, unless otherwise specified, dimensions are in (m), areas in (m2), masses
in (kg), forces in (N), moments in (N.m), pressures in kN/m2 (1 kN/m2 = 1 kPa), stresses and elastic
modulus in N/mm2 (1 N/mm2 = 1 Mpa). Max(a;b;c) means that the required value is the maximum of a,
b, and c; and min(d;e;f) means that the required value is the minimum of d, e, and f.

This document defines the dimensions, design local pressures, mechanical properties and design stresses for the scantlings determination of monohull small craft with a hull length (LH) or a load line length (see NOTE 1) of up to 24 m. It considers all parts of the craft that are assumed to be watertight or weathertight when assessing stability, freeboard and buoyancy in accordance with ISO 12217.
NOTE 1 The load line length is defined in the IMO "International Load Lines Convention 1966/2005", it can be larger than LH for craft with overhangs. This length also sets up at 24 m the lower limit of several IMO conventions.
The main core of this document determines the local design pressures and stresses for monohulls and details the possible scantlings methods derived from these pressures and stresses, both for monohulls and multihulls (see NOTE 2). The assessment process requires, where relevant, the application of Annexes.
This document is applicable to small craft, in intact condition, of the two following types:
— recreational craft, including recreational charter vessels;
— small commercial craft and workboats, see Clause 12 and Annex J.
It is not applicable to racing craft designed only for professional racing.
NOTE 2 Local pressures and stresses for multihulls are given in ISO 12215-7.
This document is applicable to the structures supporting windows, portlights, hatches, deadlights, and doors.
For the complete scantlings of the craft, this document is intended to be used with ISO 12215-8 for rudders, ISO 12215-9 for appendages and ISO 12215-10 for rig loads and rig attachments.
This document covers small craft built from the following materials:
— fibre-reinforced plastics, either in single skin or sandwich construction;
— aluminium or steel alloys;
— glued wood or plywood (single skin or sandwich), excluding traditional wood construction;
— non-reinforced plastics for craft with a hull length less than 6 m (see Annex D).
Throughout this document, unless otherwise specified, dimensions are in (m), areas in (m2), masses in (kg), forces in (N), moments in (N.m), pressures in kN/m2 (1 kN/m2 = 1 kPa), stresses and elastic modulus in N/mm2 (1 N/mm2 = 1 Mpa). Max(a;b;c) means that the required value is the maximum of a, b, and c; and min(d;e;f) means that the required value is the minimum of d, e, and f.

This document establishes a coding system to achieve identification of any small craft in terms of:
— identification code of the country of the manufacturer of the craft;
— identification code of the manufacturer;
— serial number;
— month and year of manufacture;
— model year.
It applies to small craft of all types and materials, of hull length, LH, up to 24 m.

This part of ISO 12215 is applicable to thermosetting resins and glass-fibre reinforcement used in the construction of
small craft with a length of the hull of up to , in accordance with ISO 8666. This part of ISO 12215 specifies
the minimum requirements for material properties of glass reinforcement and resin matrix and the reference laminate
made thereof.
This part of ISO 12215 may be applicable to materials other than those specified, provided that the minimum requirements
and properties of the reference laminate are met.
NOTE The underlying reason for preparing this International Standard is to harmonize existing standards and recommended
practices for loads on the hull and the dimensioning of small craft because they differ too considerably and thus limit general
worldwide acceptability of boats.

This part of ISO 12215 defines the loads and specifies the scantlings of sailing craft appendages on monohull
sailing craft with a length of hull, LH, of up to 24 m, measured according to ISO 8666. It gives
 design stresses,
 the structural components to be assessed,
 load cases and design loads for keel, centreboard and their attachments,
 computational methods and modelling guidance, and
 the means for compliance with its provisions.

This part of ISO 12215 specifies requirements for core materials for structural use and materials that are embedded
in sandwich construction. It is applicable to small craft with a hull length (LH) according to ISO 8666 of up to 24 m.
NOTE The underlying reason for preparing this part of ISO 12215 is that sandwich structures of small craft require careful
selection of core materials from a multitude of choices, and that the manufacturing has to follow certain procedures to achieve
the intended long-term durability under the expected loads and environmental conditions.

This part of ISO 12215 concerns structural details and structural components not explicitly included in
ISO 12215-5, ISO 12215-7, ISO 12215-8 and ISO 12215-9. It applies to monohull and multihull small craft
constructed from fibre reinforced plastics (FRP), aluminium or steel alloys, wood or other suitable boat
building material, with a hull length, in accordance with ISO 8666, of up to 24 m.
This part of ISO 12215 fulfils two functions. Firstly, it supports ISO 12215-5 by providing further explanations
and calculation procedures and formulae. Secondly, it gives a number of examples of arrangements and
structural details which illustrate principles of good practice. These principles provide a standard against which
alternative arrangements and structural details can be benchmarked, using the equivalence criteria specified
in this part of ISO 12215.
NOTE Scantlings derived from this part of ISO 12215 are primarily intended to apply to recreational craft including
recreational charter vessels and might not be suitable for performance racing craft.

This part of ISO 12215 gives requirements on the scantlings of rudders fitted to small craft with a length of hull,
LH, of up to 24 m, measured according to ISO 8666. It applies only to monohulls.
This part of ISO 12215 does not give requirements on rudder characteristics required for proper steering
capabilities.
This part of ISO 12215 only considers pressure loads on the rudder due to craft manoeuvring. Loads on the
rudder or its skeg, where fitted, induced by grounding or docking, where relevant, are out of scope and need
to be considered separately.
NOTE Scantlings derived from this part of ISO 12215 are primarily intended to apply to recreational craft including
charter craft.

This International Standard specifies technical requirements for windows, portlights, hatches, deadlights and doors
on small craft of hull length up to 24 m, taking into account the type of craft, its design category, and the location of
the appliance.
The appliances considered in this International Standard are only those that are critical for the craft's
watertightness, i.e. those that could lead to flooding in case of rupture of the plate.
This International Standard is mostly intended to be used for recreational craft, but it may be used for nonrecreational
small craft of hull length up to 24 m, excluding lifeboats. However, it is not applicable to commercial or
work boats used in severe conditions.

This International Standard specifies graphical symbols for operator controls, gauges, tell-tales, indicators,
instructions and warnings against risks in small craft and for engines and other equipment intended to be used
for small craft of up to 24 m length of hull.

This International Standard specifies requirements and gives guidelines for the placement, installation
and visibility of navigation lights as described in COLREG for recreational craft of less than 24 m in
length of hull, as described in ISO 8666. Annex A lists additional information to be included in the
owner’s manual.
NOTE Other national regulations may apply for craft on certain waters.

This part of ISO 6185 specifies the minimum safety characteristics required for the design, materials to use,
manufacture and testing of inflatable boats (including rigid inflatable boats) less than 8 m in overall length with a
minimum buoyancy of 1 800 N.
This part of ISO 6185 is applicable to the following types of inflatable boats intended for use within the operating
temperatures of – 5
C to + 60
C:

Type I: Inflatable boats propelled exclusively by manual means;

Type II: Inflatable boats capable of taking a maximum motor power of 4,5 kW;

Type III: Inflatable canoes and kayaks (see normative annex A);

Type IV: Inflatable craft propelled by sail with a maximum sail area of 6 m2 (see normative annex B).
NOTE 1 General arrangements of typical boats of Types I, II and III are given in annexes C, D and E, respectively.
NOTE 2 For boats with power ratings of 4,5 kW and greater, refer to ISO 6185-2 and ISO 6185-3.
This part of ISO 6185 excludes single-chambered boats and is not applicable to aquatic toys and inflatable liferafts.

This part of ISO 14509 specifies the conditions for obtaining reproducible and comparable measurement
results of the maximum sound pressure level of airborne sound generated during the passage of powered
recreational craft of up to 24 m length of hull, including inboards, stern drives, personal watercraft (PWC) and
outboard motors. It also specifies standard craft based type tests for stern drives with integral exhaust
systems and for outboard motors. It also specifies the procedure to be followed if, in addition to the maximum
sound pressure level, the determination of the sound exposure level is desired.
NOTE For craft other than those specified above, ISO 2922 is applicable for sound emission measurements.
The accuracy grade of the acoustical test procedures specified in this part of ISO 14509 is engineering grade
(grade 2).

This part of ISO 6185 specifies the minimum safety characteristics required for the design, materials to use,
manufacture and testing of inflatable boats (including rigid inflatable boats) less than 8 m in overall length with a
minimum buoyancy of 1 800 N.
This part of ISO 6185 is applicable to the following types of inflatable boats, intended for use within the operating
temperatures of – 15
C to  60
C:

Type V: Inflatable boats capable of taking a motor power rating of 4,5 kW to 15 kW inclusive;

Type VI: Inflatable craft propelled by sail with a sail area greater than 6 m2 (see normative annex A).
NOTE For boats with power ratings of 4,5 kW and less, refer ISO 6185-1, and for boats with power ratings of 15 kW and
greater, refer to ISO 6185-3.
This part of ISO 6185 excludes single-chambered boats and boats made from unsupported materials of more than
12 kN buoyancy and powered by motors exceeding 4,5 kW, and is not applicable to aquatic toys and inflatable
liferafts.

This International Standard establishes requirements for design and test of petrol and diesel fuel tanks for internal
combustion engines that are intended to be permanently installed in small craft of up to 24 m length of hull.
For installation requirements, ISO 10088 applies.

This part of ISO 12215 is applicable to thermosetting resins and glass-fibre reinforcement used in the construction of
small craft with a length of the hull of up to , in accordance with ISO 8666. This part of ISO 12215 specifies
the minimum requirements for material properties of glass reinforcement and resin matrix and the reference laminate
made thereof.
This part of ISO 12215 may be applicable to materials other than those specified, provided that the minimum requirements
and properties of the reference laminate are met.
NOTE The underlying reason for preparing this International Standard is to harmonize existing standards and recommended
practices for loads on the hull and the dimensioning of small craft because they differ too considerably and thus limit general
worldwide acceptability of boats.

This part of ISO 14509 specifies the procedures for assessing sound emission of powered monohull
recreational craft of length up to 24 m with a Froude number greater than 1,1. It is not applicable for personal
watercraft (PWC).
This part of ISO 14509 specifies the determination of the A-weighted sound pressure level by combining a
calculation method and a measurement method.

This part of ISO 6185 specifies the minimum safety characteristics required for the design, materials
to use, manufacture and testing of inflatable boats and rigid inflatable boats with a hull length LH in
accordance with ISO 8666 less than 8 m with a motor power rating of 15 kW and greater.
This part of ISO 6185 is applicable to the following types of boats intended for use within the operating
temperatures of – 20 °C to + 60 °C:
— Type VII: Powered Boats fitted with a buoyancy tube attached to the port and starboard sides,
suitable for navigation in conditions of Design Categories C and D and capable of installing motor
power rating of 15 kW and greater.
— Type VIII: Powered Boats fitted with a buoyancy tube attached to the port and starboard sides,
suitable for navigation in conditions of Design Category B capable of installing motor power rating
of 75kW and greater.
NOTE 1 General arrangements of typical boats of Types VII and VIII are given in Annexes A and B, respectively.
This part of ISO 6185 excludes single-chambered boats and boats made from unsupported materials,
and is not applicable to aquatic toys and inflatable liferafts.
NOTE 2 For craft, concerned by the Recreational Craft Directive (RCD) of the European Union, fitted with
inboard engines with nonstandard integral exhausts, noise emission requirements need to be considered.

This part of ISO 12215 specifies requirements for materials intended for use in the construction of the hull,
superstructure and appendages, in particular:
— weldable normal and higher strength hot-rolled steel plates, wide flats, sections and bars;
— austenitic stainless steels, fabricated in the form of plates or profiles;
— wrought aluminium alloys fabricated as plates, sections and extruded profiles;
— wood in the form of solid timber, plywood or veneer;
— other suitable materials.
NOTE 1 Other materials may be used in the construction of small craft if adequate suitability and durability for the intended
purpose can be demonstrated.
This part of ISO 12215 applies to small craft with a length hull (LH) according to ISO 8666 of up to 24 m.
NOTE 2 The underlying reason for preparing this part of ISO 12215 is that the choice of materials for the construction of a
small craft has a significant influence on short-term and long-term durability under the expected loads and environmental
conditions.

This International Standard specifies requirements for cockpits and recesses to be designated either as “watertight”
or as “quick-draining” on small craft of hull length up to 24 m.
It does not set requirements for the size and shape of a cockpit or recess, nor when or where it shall be used. It
only considers draining by gravity, and not by pumping or other methods.
NOTE 1 The term “quick-draining cockpit” has been chosen to differentiate from the common understanding of “self-draining
cockpit” where water may be drained overboard in certain conditions, but without specified draining speed, height of bottom or
sill, etc.
NOTE 2 Examples of single-plane cockpit bottoms are given in informative annex A.

This part of ISO 12215 specifies workshop conditions, material storage and handling, and requirements for the
manufacturing of the craft. It applies, to small craft with a (LH) length according to ISO 8666 of up to 24 m.
This part of ISO 12215 does not cover health and safety requirements.
NOTE The underlying reason for preparing this part of ISO 12215 is that workshop conditions have a significant influence
on the mechanical short- and long-term properties of recreational craft and that the scantling determination according to
ISO 12215-5 is based on conditions that are appropriate for the material used as well as the manufacturing process applied.

This International Standard applies to personal watercraft as defined in 3.1, for the construction and
installation of builder's plate, permanently installed petrol fuel systems, electrical systems, steering systems,
ventilation, hull structure and floatation, and requirements for stability, freeboard and owner's manual.

This International Standard specifies requirements for strong points for attaching chains, cables and lines for
anchoring, mooring and towing small craft. It does not specify the requirement for any strong point from which
the craft can tow other vessels. This standard is applicable to small craft with a hull length up to 24 m.
This International Standard does not define anchor weights or the length of chains and lines.

Specifies requirements to prevent an outboard motor from being started in gear, when installed on small craft of up to 24 m length of hull.

This part of ISO 6185 specifies the minimum safety characteristics required for the design, materials,
manufacture and testing of rigid inflatable boats (RIBs) with a hull length of between 8 m and 24 m and
with a motor power rating of 15 kW and greater.
This part of ISO 6185 is applicable to Type IX and Type X RIBs intended for use within the operating
temperatures of −20 °C to +60 °C.
— Type IX: Powered boats, fitted with a buoyancy tube covering at least 85 % of the port and starboard
sides, suitable for navigation in inshore and sheltered waters, up to and including wind force 6
Beaufort and significant wave heights up to 2 m (design categories C and D), with a hull length of
between 8 m and 24 m and with a motor power rating of 15 kW and greater.
— Type X: Powered boats, fitted with a buoyancy tube covering at least 85 % of the port and starboard
sides, suitable for navigation in waters, up to wind force 8 Beaufort and significant wave heights
up to 4 m (design category B), with a hull length of between 8 m and 24 m and with a motor power
rating of 75 kW and greater.
NOTE 1 General arrangements of typical boats of Types IX and X are given in Annexes A and B, respectively.
NOTE 2 For boats with power ratings of 4,5 kW and less, refer to ISO 6185-1. For boats with power ratings of
4,5 kW to 15 kW inclusive, refer to ISO 6185-2. For boats with a hull length of less than 8 m and power rating of
15 kW and greater, refer to ISO 6185-3.
Boats outside these types or outside of Type IX and Type X, as defined, are outside of the scope of ISO 6185.
NOTE 3 For inflatable boats with a hull length greater than 8 m, it is suggested to use the requirements of
ISO 6185-3.

This part of ISO 12215 specifies requirements for core materials for structural use and materials that are embedded
in sandwich construction. It is applicable to small craft with a hull length (LH) according to ISO 8666 of up to 24 m.
NOTE The underlying reason for preparing this part of ISO 12215 is that sandwich structures of small craft require careful
selection of core materials from a multitude of choices, and that the manufacturing has to follow certain procedures to achieve
the intended long-term durability under the expected loads and environmental conditions.

This part of ISO 12215 defines the loads and specifies the scantlings of sailing craft appendages on monohull
sailing craft with a length of hull, LH, of up to 24 m, measured according to ISO 8666. It gives
 design stresses,
 the structural components to be assessed,
 load cases and design loads for keel, centreboard and their attachments,
 computational methods and modelling guidance, and
 the means for compliance with its provisions.

This part of ISO 14509 specifies the conditions for obtaining reproducible and comparable measurement
results of the maximum sound pressure level of airborne sound generated during the passage of powered
recreational craft of up to 24 m length of hull, including inboards, stern drives, personal watercraft (PWC) and
outboard motors. It also specifies standard craft based type tests for stern drives with integral exhaust
systems and for outboard motors. It also specifies the procedure to be followed if, in addition to the maximum
sound pressure level, the determination of the sound exposure level is desired.
NOTE For craft other than those specified above, ISO 2922 is applicable for sound emission measurements.
The accuracy grade of the acoustical test procedures specified in this part of ISO 14509 is engineering grade
(grade 2).

This part of ISO 12215 gives requirements on the scantlings of rudders fitted to small craft with a length of hull,
LH, of up to 24 m, measured according to ISO 8666. It applies only to monohulls.
This part of ISO 12215 does not give requirements on rudder characteristics required for proper steering
capabilities.
This part of ISO 12215 only considers pressure loads on the rudder due to craft manoeuvring. Loads on the
rudder or its skeg, where fitted, induced by grounding or docking, where relevant, are out of scope and need
to be considered separately.
NOTE Scantlings derived from this part of ISO 12215 are primarily intended to apply to recreational craft including
charter craft.

This part of ISO 6185 specifies the minimum safety characteristics required for the design, materials to use,
manufacture and testing of inflatable boats (including rigid inflatable boats) less than 8 m in overall length with a
minimum buoyancy of 1 800 N.
This part of ISO 6185 is applicable to the following types of inflatable boats intended for use within the operating
temperatures of – 5
C to + 60
C:

Type I: Inflatable boats propelled exclusively by manual means;

Type II: Inflatable boats capable of taking a maximum motor power of 4,5 kW;

Type III: Inflatable canoes and kayaks (see normative annex A);

Type IV: Inflatable craft propelled by sail with a maximum sail area of 6 m2 (see normative annex B).
NOTE 1 General arrangements of typical boats of Types I, II and III are given in annexes C, D and E, respectively.
NOTE 2 For boats with power ratings of 4,5 kW and greater, refer to ISO 6185-2 and ISO 6185-3.
This part of ISO 6185 excludes single-chambered boats and is not applicable to aquatic toys and inflatable liferafts.

This part of ISO 12215 concerns structural details and structural components not explicitly included in
ISO 12215-5, ISO 12215-7, ISO 12215-8 and ISO 12215-9. It applies to monohull and multihull small craft
constructed from fibre reinforced plastics (FRP), aluminium or steel alloys, wood or other suitable boat
building material, with a hull length, in accordance with ISO 8666, of up to 24 m.
This part of ISO 12215 fulfils two functions. Firstly, it supports ISO 12215-5 by providing further explanations
and calculation procedures and formulae. Secondly, it gives a number of examples of arrangements and
structural details which illustrate principles of good practice. These principles provide a standard against which
alternative arrangements and structural details can be benchmarked, using the equivalence criteria specified
in this part of ISO 12215.
NOTE Scantlings derived from this part of ISO 12215 are primarily intended to apply to recreational craft including
recreational charter vessels and might not be suitable for performance racing craft.

This International Standard establishes requirements for design and test of petrol and diesel fuel tanks for internal
combustion engines that are intended to be permanently installed in small craft of up to 24 m length of hull.
For installation requirements, ISO 10088 applies.

This part of ISO 6185 specifies the minimum safety characteristics required for the design, materials to use,
manufacture and testing of inflatable boats (including rigid inflatable boats) less than 8 m in overall length with a
minimum buoyancy of 1 800 N.
This part of ISO 6185 is applicable to the following types of inflatable boats, intended for use within the operating
temperatures of – 15
C to  60
C:

Type V: Inflatable boats capable of taking a motor power rating of 4,5 kW to 15 kW inclusive;

Type VI: Inflatable craft propelled by sail with a sail area greater than 6 m2 (see normative annex A).
NOTE For boats with power ratings of 4,5 kW and less, refer ISO 6185-1, and for boats with power ratings of 15 kW and
greater, refer to ISO 6185-3.
This part of ISO 6185 excludes single-chambered boats and boats made from unsupported materials of more than
12 kN buoyancy and powered by motors exceeding 4,5 kW, and is not applicable to aquatic toys and inflatable
liferafts.