SIST EN ISO 6185-4:2018

SLOVENSKI STANDARD
01-december-2018
1DGRPHãþD
SIST EN ISO 6185-4:2011
1DSLKOMLYLþROQLGHOýROQLVWUXSRPRGGRPLQ]PRWRUMHP]PRþMRN:
LQYHþ,62SRSUDYOMHQDYHU]LMD
Inflatable boats - Part 4: Boats with a hull length of between 8 m and 24 m with a motor
power rating of 15 kW and greater (ISO 6185-4:2011, Corrected version 2014-08-01)
Aufblasbare Boote - Teil 4: Boote mit einer Gesamtlänge zwischen 8 m und 24 m mit
einer Motorleistung von 15 kW und mehr (ISO 6185-4:2011, korrigierte Fassung 2014-08
-01)
Bateaux pneumatiques - Partie 4: Bateaux d'une longueur de coque comprise entre 8 m
et 24 m et d'une puissance moteur nominale supérieure ou égale à 15 kW (ISO 6185-
4:2011, Version corrigée 2014-08-01)
Ta slovenski standard je istoveten z: EN ISO 6185-4:2018
ICS:
47.080 ýROQL Small craft
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN ISO 6185-4
EUROPEAN STANDARD
NORME EUROPÉENNE
September 2018
EUROPÄISCHE NORM
ICS 47.080 Supersedes EN ISO 6185-4:2011
English Version
Inflatable boats - Part 4: Boats with a hull length of
between 8 m and 24 m with a motor power rating of 15
kW and greater (ISO 6185-4:2011, Corrected version
2014-08-01)
Bateaux pneumatiques - Partie 4: Bateaux d'une Aufblasbare Boote - Teil 4: Boote mit einer
longueur de coque comprise entre 8 m et 24 m et d'une Gesamtlänge zwischen 8 m und 24 m mit einer
puissance moteur nominale supérieure ou égale à 15 Motorleistung von 15 kW und mehr (ISO 6185-4:2011,
kW (ISO 6185-4:2011, Version corrigée 2014-08-01) korrigierte Fassung 2014-08-01)
This European Standard was approved by CEN on 16 April 2018.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN
member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by
translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2018 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 6185-4:2018 E
worldwide for CEN national Members.

Contents Page
European foreword . 3
Annex ZA (informative) Relationship between this European Standard and the Essential
Requirements of Directive 2013/53/EU aimed to be covered . 4

European foreword
The text of ISO 6185-4:2011, Corrected version 2014-08-01 has been prepared by Technical Committee
ISO/TC 188 “Small craft” of the International Organization for Standardization (ISO) and has been taken
over as EN ISO 6185-4:2018.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by March 2019, and conflicting national standards shall be
withdrawn at the latest by March 2019.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN ISO 6185-4:2011.
This document has been prepared under a mandate given to CEN by the European Commission and the
European Free Trade Association, and supports essential requirements of EU Directive 2013/53/EU.
For relationship with EU Directive 2013/53/EU, see informative Annex ZA, which is an integral part of
this document.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia,
Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France,
Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands,
Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
the United Kingdom.
Endorsement notice
The text of ISO 6185-4:2011, Corrected version 2014-08-01 has been approved by CEN as EN ISO 6185-
4:2018 without any modification.
Annex ZA
(informative)
Relationship between this European Standard and the Essential
Requirements of Directive 2013/53/EU aimed to be covered
This European standard has been prepared under a Commission’s standardization request M/542
C(2015) 8736 final to provide one voluntary means of conforming to Essential Requirements of Directive
2013/53/EU.
Once this standard is cited in the Official Journal of the European Union under that Directive, compliance
with the normative clauses of this standard given in Table ZA.1 confers, within the limits of the scope of
this standard, a presumption of conformity with the corresponding Essential Requirements of that
Directive and associated EFTA regulations.
Table ZA.1 — Correspondence between this European Standard and Annex I of Directive
2013/53/EU
Essential Requirements of Clause(s)/sub- Remarks/Notes
Directive 2013/53/EU clause(s) of this EN
Annex I, Part A, 1 - Watercraft design 3.11 except note 1 to Disregard note to Clause 3.11
categories entry
Annex I, Part A, 2.1 - Craft 8
identification
Annex I, Part A, 2.2 - Builder´s plate 7.1, 7.5, 8
Annex I, Part A, 2.3 - Protection from 6.2, 6.8, 7.10
falling overboard and means of
reboarding
Annex I, Part A, 2.4 - Visibility from 7.11
the main steering position
Annex I, Part A, 2.5 - Owner´s manual 9, 10 Include repair and maintenance instructions
in clause 10 in the Owner’s Manual.
Annex I, Part A, 3.1 - Structure 5, 6.1, 6.2, 6.3, 6.4, 6.8,
7.7, 7.9, 7.14, 7.15, 7.16
Annex I, Part A, 3.2 - Stability and 7.4, Table 3 For design Category B, C and D only for type IX
freeboard and X watercraft.
The static stability and freeboard shall comply
with the latest revision of EN ISO 12217-1.
Annex I, Part A, 3.3 - Buoyancy and 7.6, 7.7, 7.8 Inherent buoyancy and floatation shall be
flotation calculated in accordance with the latest
revision of EN ISO12217-1.
Annex I, Part A, 3.4 - Openings in hull, 6.14 Clause 6.14 also covers sea cocks
deck and superstructure
Annex I, Part A, 3.5 - Flooding 6.5, 7.13
Annex I, Part A, 3.6 - Manufacturer's 7.1, 7.5
maximum recommended load
Annex I, Part A, 3.7 - Liferaft stowage 7.12
Annex I, Part A, 3.9 - Anchoring, 6.7
mooring and towing
Annex I, Part A, 4 - Handling 7.2, 7.3
characteristics
Annex I, Part A, 5.1 - Engines and 6.10.1
engine spaces
Annex I, Part A, 5.2 - Fuel system and 6.10.2, 6.11
fuel tanks
Annex I, Part A, 5.3 - Electrical 6.9
system
Annex I, Part A, 5.4 - Steering system 6.6
Annex I, Part A, 5.5 - Gas system 6.15
Annex I, Part A, 5.6 - Fire protection 6.13
Annex I, Part A, 5.7 - Navigation 6.16
lights
Annex I, Part A, 5.8 - Discharge 6.5, 6.17 Discharge of toilet waste retention systems
prevention and installations where installed shall comply with the
facilitating the delivery requirements of EN ISO 8099
ashore of waste
WARNING 1 — Presumption of conformity stays valid only as long as a reference to this European
Standard is maintained in the list published in the Official Journal of the European Union. Users of this
standard should consult frequently the latest list published in the Official Journal of the European Union.
WARNING 2 — Other Union legislation may be applicable to the product(s) falling within the scope of
this standard
INTERNATIONAL ISO
STANDARD 6185-4
First edition
2011-07-01
Corrected version
2014-08-01
Inflatable boats —
Part 4:
Boats with a hull length of between 8
m and 24 m with a motor power rating
of 15 kW and greater
Bateaux pneumatiques —
Partie 4: Bateaux d’une longueur de coque comprise entre 8 m et 24
m et d’une puissance moteur nominale supérieure ou égale à 15 kW
Reference number
ISO 6185-4:2011(E)
©
ISO 2011
ISO 6185-4:2011(E)
© ISO 2011
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form
or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior
written permission. Permission can be requested from either ISO at the address below or ISO’s member body in the country of
the requester.
ISO copyright office
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Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail copyright@iso.org
Web www.iso.org
Published in Switzerland
ii © ISO 2011 – All rights reserved

ISO 6185-4:2011(E)
Contents Page
Foreword .v
Introduction .vi
1 Scope . 1
2 Normative references . 1
3 Terms and definitions .3
4 Symbols . 4
5 Materials . 5
5.1 General . 5
5.2 Materials making up the buoyancy tube . 5
5.3 Wood . 7
5.4 Metal parts . 7
5.5 Glass-reinforced plastics . 7
5.6 Other materials . 7
5.7 Buoyant material used in foam-filled buoyancy tubes . 7
6 Functional components .9
6.1 Conditioning . 9
6.2 Buoyancy tube and hull fittings (items bonded to the buoyancy tube) . 9
6.3 Valves (if applicable) . 9
6.4 Transom .10
6.5 Hull interior drainage.10
6.6 Remote steering system (where offered as standard or optional equipment) .10
6.7 Towing, anchoring and mooring strong points .10
6.8 Seating and attachment systems (where offered as standard or optional equipment).10
6.9 Electrical installations (where offered as standard or optional equipment) .11
6.10 Engine and engine spaces .11
6.11 Ventilation of petrol motor and petrol tank compartments (where applicable) .11
6.12 Devices for lifting the boat (if applicable) .11
6.13 Fire protection (if applicable) .11
6.14 Openings in hull, deck or superstructure .11
6.15 Gas systems .11
6.16 Navigation lights .12
6.17 Discharge prevention .12
6.18 Noise emissions (applicable to inboard engines installations without integral exhaust) .12
7 Safety requirements of the completed boat .12
7.1 Maximum permissible number of persons (crew limit) .12
7.2 Motor power calculation .12
7.3 Maximal manoeuvring speed (if applicable) .12
7.4 Static stability of the boat .15
7.5 Maximum load capacity .16
7.6 Buoyancy requirements .16
7.7 Compartmentation (inflatable buoyancy tubes) .17
7.8 Nominal pressures (inflatable buoyancy tubes) .18
7.9 Strength of the inflatable buoyancy tube .18
7.10 Man overboard prevention and recovery .19
7.11 Field of vision from the helm position .19
7.12 Provision for a liferaft or liferafts .19
7.13 Self-bailing .19
7.14 Buoyancy tube attachment strength test (type test only) .20
7.15 Strength of the rigid structure (type test only) .22
7.16 Strength of principal factory-fitted accessories .22
8 Builder’s plate(s).23
ISO 6185-4:2011(E)
9 Owner’s manual.24
10 Standard equipment .24
Annex A (informative) Typical Type IX powered boat .25
Annex B (informative) Typical Type X powered boat.26
Bibliography .27
iv © ISO 2011 – All rights reserved

ISO 6185-4:2011(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 on the meaning of ISO specific terms and expressions related to conformity
assessment, as well as information about ISO’s adherence to the WTO principles in the Technical Barriers
to Trade (TBT) see the following URL: Foreword - Supplementary information
The committee responsible for this document is ISO/TC 188, Small craft.
This first edition, together with ISO 6185-1, ISO 6185-2 and ISO 6185-3, cancels and replaces
ISO 6185:1982, which has been technically revised.
ISO 6185 consists of the following parts, under the general title Inflatable boats:
— Part 1: Boats with a maximum motor power rating of 4,5 kW
— Part 2: Boats with a maximum motor power rating of 4,5 kW to 15 kW inclusive
— Part 3: Boats with a maximum motor power rating of 15 kW and greater
— Part 4: Boats with a hull length of between 8 m and 24 m with a motor power rating of 15 kW and
greater
This corrected version of ISO 6185-4:2011 incorporates the following corrections:
— A cross-reference to 5.2.2.7 has been added in Table 1, row 3.
— The formula in 5.2.2.7 has been replaced and the unit for d in Table 1 has been changed to mm.
In addition, Figure A.1 has been rotated through 90°.
ISO 6185-4:2011(E)
Introduction
ISO 6185 is subdivided into four parts as shown in Figure 1.
It excludes
a) single-chamber boats,
b) boats of less than 1 800 N buoyancy, and
c) boats made from unsupported materials of more than 12 kN inflated buoyancy and powered by
motors of power P > 4,5 kW.
It is not applicable to aquatic toys, nor to inflatable liferafts which are specified in ISO 9650.
ISO 6185-1:
< 8 m propelled exclusively by manual means.
— Type I Boats with L
H
— Type II Powered boats with L < 8 m with a power P ≤ 4,5 kW.
H
— Type III Canoes and kayaks with L < 8 m.
H
— Type IV Sail boats with L < 8 m with a sail area less than or equal to 6 m .
H
ISO 6185-2:
— Type V Powered boats with L < 8 m with a power 4,5 kW < P ≤ 15 kW.
H
— Type VI Sail boats with L < 8 m with a sail area greater than 6 m .
H
ISO 6185-3:
— Type Vll Powered boats with L < 8 m with a power P ≥ 15 kW.
H
— Type Vlll Powered boats with L < 8 m with a power P ≥ 75 kW.
H
ISO 6185-4:
— Type IX Powered boats (design categories C and D) with 8 m < L ≤ 24 m with power P ≥ 15 kW.
H
— Type X Powered boats (design category B) with 8 m < L ≤ 24 m with power P ≥ 75 kW.
H
vi © ISO 2011 – All rights reserved

ISO 6185-4:2011(E)
Figure 1 — Illustration of how ISO 6185 is subdivided
This part of ISO 6185 enables the boat to be assigned to a design category appropriate to its design and
maximum load. The categories used align with those in the Recreational Craft Directive of the European
Union, EU Directive 94/25/EC as amended by Directive 2003/44/EC.
INTERNATIONAL STANDARD ISO 6185-4:2011(E)
Inflatable boats —
Part 4:
Boats with a hull length of between 8 m and 24 m with a
motor power rating of 15 kW and greater
WARNING — Attention is drawn to the completion process whereby structural items, for
example steering consoles, seats and superstructures, are installed by parties other than the
manufacturer of the boat. These items should be installed to comply with the relevant clauses of
this part of ISO 6185 so it can be ensured that any such installations do not invalidate the original
assessment.
1 Scope
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.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.
ISO 1817, Rubber, vulcanized — Determination of the effect of liquids
ISO 2411, Rubber- or plastics-coated fabrics — Determination of coating adhesion
ISO 3011, Rubber- or plastics-coated fabrics — Determination of resistance to ozone cracking under static
conditions
ISO 6185-4:2011(E)
ISO 4674-1, Rubber- or plastics-coated fabrics — Determination of tear resistance — Part 1: Constant rate
of tear methods
ISO 4675, Rubber- or plastics-coated fabrics — Low-temperature bend test
ISO 6185-3:2001, Inflatable boats — Part 3: Boats with a maximum motor power rating of 15 kW and
greater
ISO 7010:2011, Graphical symbols — Safety colours and safety signs — Registered safety signs
ISO 8099, Small craft — Toilet waste retention systems
ISO 8666, Small craft — Principal data
ISO 8847, Small craft — Steering gear — Cable and pulley systems
ISO 8848, Small craft — Remote steering systems
ISO 9093 (all parts), Small craft — Seacocks and through-hull fittings
1)
ISO 9094, Small craft — Fire protection
ISO 10087, Small craft — Craft identification — Coding system
ISO 10088, Small craft — Permanently installed fuel systems
ISO 10133, Small craft — Electrical systems — Extra-low-voltage d.c. installations
ISO 10239, Small craft — Liquefied petroleum gas (LPG) systems
ISO 10240, Small craft — Owner’s manual
ISO 10592, Small craft — Hydraulic steering systems
ISO 11105, Small craft — Ventilation of petrol engine and/or petrol tank compartments
ISO 11591, Small craft, engine-driven — Field of vision from helm position
ISO 11812:2001, Small craft — Watertight cockpits and quick-draining cockpits
ISO 12215-3:2002, Small craft — Hull construction and scantlings — Part 3: Materials: Steel, aluminium
alloys, wood, other materials
ISO 12215-5, Small craft — Hull construction and scantlings — Part 5: Design pressures for monohulls,
design stresses, scantlings determination
ISO 12215-6, Small craft — Hull construction and scantlings — Part 6: Structural arrangements and details
ISO 12216, Small craft — Windows, portlights, hatches, deadlights and doors — Strength and watertightness
requirements
ISO 12217-1:2013, Small craft — Stability and buoyancy assessment and categorization — Part 1: Non-
sailing boats of hull length greater than or equal to 6 m
ISO 13297, Small craft — Electrical systems — Alternating current installations
ISO 14945, Small craft — Builder’s plate
ISO 14946:2001, Small craft — Maximum load capacity
ISO 15084, Small craft — Anchoring, mooring and towing — Strong points
ISO 15085:2003, Small craft — Man-overboard prevention and recovery
1) To be published. (Technical revision of ISO 9094-1:2003 and ISO 9094-2:2002.)
2 © ISO 2011 – All rights reserved

ISO 6185-4:2011(E)
ISO 21487, Small craft — Permanently installed petrol and diesel fuel tanks
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
rigid inflatable boat
RIB
buoyant structure comprising two essential parts: a lower hull formed by a rigid structure, achieving
part of its intended shape with a non-rigid buoyancy tube that is of either inflatable or foam-filled type
and where the buoyant volume of the buoyancy tube comprises not less than 50 % of the total required
buoyant volume of the boat (3.4)
Note 1 to entry: Tubes made from rigid aluminium, rotomoulded polyethylene, glass-reinforced plastic or other
rigid materials are excluded.
3.2
inflatable buoyancy tube
multi-chambered inflatable buoyancy tube attached to the length of both port and starboard sides of the
hull when the boat is in use, and inflated with air
3.3
foam-filled buoyancy tube
buoyancy tube attached to the length of both port and starboard sides of the hull when the boat is in use,
and filled with resilient closed-cell type foam
Note 1 to entry: For material requirements, see 5.7.
3.4
buoyancy of a RIB
buoyancy comprising the buoyant volumes of the buoyancy tube (3.2 and 3.3), added to the permanent
inherent buoyancy (3.5), added to the permanent sealed buoyancy (3.6), added to the inherent buoyancy
of the rigid parts of the boat (3.7)
3.5
permanent inherent buoyancy
buoyancy provided by non-intercellular (closed-cell) foam or other materials, contained within the hull
and cockpit, which are less dense than fresh water
Note 1 to entry: For material requirements, see ISO 12217-1:2013, Annex F.
3.6
permanent sealed buoyancy
buoyancy provided by two or more sealed compartments, contained within the hull and cockpit, filled
with air
Note 1 to entry: For material requirements, see column “Air containers” in ISO 12217-1:2013, Table F.1.
3.7
inherent buoyancy of the rigid parts of the boat
volume of the inherent buoyancy of the rigid parts of the boat calculated in accordance with
ISO 12217-3:2013, Annex D
3.8
reinforced materials
materials which have a coated base cloth
ISO 6185-4:2011(E)
3.9
inboard area
internal surface area defined by a vertical plane tangential to the innermost side of the buoyancy tube
and perpendicular to the cockpit sole
3.10
crew limit
CL
maximum number of persons to be carried when the boat is underway, as displayed on the builder’s
plate
3.11
design category
description of the sea and wind conditions for which a boat is assessed by this part of ISO 6185 to be
suitable
Note 1 to entry: The definitions of these design categories align with those used in the Recreational Craft Directive
of the European Union, EU Directive 94/25/EC as amended by Directive 2003/44/EC.
3.11.1
design category B “offshore”
category of boats considered suitable to operate in seas with significant wave heights up to 4 m and
winds of Beaufort force 8 or less
3.11.2
design category C “inshore”
category of boats considered suitable to operate in seas with significant wave heights up to 2 m and a
typical steady wind force of Beaufort force 6 or less
3.11.3
design category D “sheltered waters”
category of boats considered suitable to operate in waters with significant wave heights of up to and
including 0,3 m with occasional waves of 0,5 m height, for example from passing boats, and a typical
steady wind force of Beaufort force 4 or less
4 Symbols
Unless specifically otherwise defined, the symbols and units used in this part of ISO 6185 are as given
in Table 1.
Table 1 — Symbols and units
Symbol Designation Unit (Sub)clause
A windage area of hull in profile at the appropriate loading condition m 7.4
LV
maximum beam, measured in accordance with ISO 8666 with the
B m 7.2
max
inflatable buoyancy tubes inflated to nominal pressure
maximum buoyancy tube diameter, measured within the straight sec- 5.2.2.5 and
d mm
tions of the buoyancy tube 5.2.2.7
F tear resistance force N 5.2.2.5
t
F static load force N 5.2.2.7
s
length of the hull, measured in accordance with ISO 8666 with the
L m Introduction
H
inflatable buoyancy tubes inflated to nominal pressure
maximum length, measured in accordance with ISO 8666 with the
L m 7.2
max
inflatable buoyancy tubes inflated to nominal pressure
L length of the sample buoyancy tube section m 7.14.3
STS
L total length of the buoyancy tube on all sides of the boat m 7.14.3
T
4 © ISO 2011 – All rights reserved

ISO 6185-4:2011(E)
Table 1 (continued)
Symbol Designation Unit (Sub)clause
m mass of test weights kg 7.14.3
t
m mass of boat when towed on a trailer, as defined in ISO 8666 kg 6.12
T
mass of the boat in the light craft condition, as defined in
m kg 7.2
LC
ISO 12217-1:2013
m mass of the loaded boat, as defined in ISO 8666 kg 7.6.1 and 7.14.3
LDC
N number of buoyancy compartments unit 7.7
a
p nominal pressure at 20 °C bar 5.2.2.5
P motor power rating kW 7.2
calc
V total buoyant volume of the boat m 7.6.1
V volume of each compartment m 7.7
c
a 5 2
1 bar = 0,1 MPa = 10 Pa; 1 MPa = 1 N/mm .
5 Materials
5.1 General
All materials shall be selected according to the stresses to which the boat is to be subjected (shape,
dimensions, maximum load, installed power, etc.) and also to the intended service conditions. Use under
normal seagoing conditions shall not materially impair their performance and they shall meet the
requirements of 5.2 to 5.7.
5.2 Materials making up the buoyancy tube
5.2.1 Requirements
All materials contributing to the integrity of the buoyancy tube shall meet the requirements of 5.2.2 and
shall retain their full serviceability within the operating temperature range of −20 °C to +60 °C.
5.2.2 Test methods
5.2.2.1 Sampling
Carry out the test with test pieces taken from the constituent materials prior to making the buoyancy
tube. If the buoyancy tubes are vulcanized during manufacture, the test pieces shall also be vulcanized.
5.2.2.2 Resistance to liquids
Carry out the test on the external side, or the sides of the material in contact with the ambient
environment, as specified in ISO 1817 using IRM 901 oil (A) and salt water (B).
In both case A and case B, shown in Table 2, the change in mass per unit area shall not exceed 100 g/m
following the stipulated period of contact with the test fluid at a temperature of (70 ± 2) °C.
ISO 6185-4:2011(E)
Table 2 — Duration of test
Parameter A B
a b
Test liquid IRM 901 oil Salt water
Period of contact (22 ± 0,25) h ≥ 336 h
a
IRM 901 oil has replaced ASTM oil No. 1.
b
Components of salt water: distilled water + 30 g of sodium chloride per litre.
5.2.2.3 Resistance to ozone
Carry out the test on the external face of the fabric in contact with the ambient environment as specified
in ISO 3011.
— Exposure time: 72 h.
— Temperature of test: (30 ± 2) °C.
−6
— Concentration: a volume fraction of 0,5 × 10 .
— Mandrel diameter: 5 times the material thickness.
There shall be no signs of cracking on completion of the test when test samples are examined under 10 ×
magnification.
5.2.2.4 Resistance to cold
All materials shall satisfy the requirements of ISO 4675 at a temperature of −20 °C.
5.2.2.5 Tear resistance
Carry out the test as specified in ISO 4674-1, method B.
The minimum value of tear resistance, F , is given by
t
Fd=+0,,375 1140p ,14
()
t
In all cases, F shall be not less than 75 N.
t
5.2.2.6 Coating adhesion
Carry out the test in accordance with ISO 2411 at room temperature and a machine rate of
(100 ± 10) mm/min. The minimum adhesion value shall be 40 N per 25 mm.
Alternatively to the preparation of test strips according to ISO 2411, it is permissible to cut a test strip
25 mm wide by extending cuts A and B and ignoring cut C. In order for the test strips to be gripped,
50 mm shall be left unbounded at one end. The test piece shall be “peeled” at (100 ± 10) mm/min and the
surface coating cut back to the fabric and allowed to run down the fabric/coating interface for at least
25 mm.
5.2.2.7 Seam strength testing of buoyancy tubes
Join two pieces of material together in the same manner as used in the buoyancy tube construction
(method, material and dimensions) to form a 50 mm wide test piece. Apply a static load, F , at 60 °C over
s
a period of 4 h. Where more than one method of seam construction is used in the manufacture of the
buoyancy tube, carry out the test for each method.
6 © ISO 2011 – All rights reserved

ISO 6185-4:2011(E)
The minimum value of F is given by
s
Fd=+37,,51()14p 01, 4
s
There shall be no slipping or other failure at any part of the seam.
5.3 Wood
5.3.1 General
The types of timber and plywood shall comply with ISO 12215-3.
All exposed timber and plywood shall be given weather-tight protection, such as paint, varnish or
preservative, suitable for a marine environment.
In the selection of protective coatings, national, regional and international regulations for the protection
of the environment shall be followed.
5.3.2 Plywood
Plywoods used may incorporate hardwoods or softwood plies and the bonding adhesive shall be
waterproof and boil-proof.
If the wood used for plies is not hardwood, the plies shall be treated to give protection against rot, fungal
decay and marine borers, and/or reinforced (laminate), where necessary.
All adjoining edges and/or surfaces, including any end grain, shall be effectively sealed.
Timber used shall be seasoned and free from sapwood, decay, insect attack, splits and other imperfections
likely to adversely affect the performance of the material. The timber shall be generally free from knots
but an occasional sound intergrown knot is acceptable.
5.3.3 Constructional timbers
Timber used in the construction shall be seasoned, and free from sapwood, shakes and other defects.
5.4 Metal parts
The types of metal shall comply with the requirements of ISO 12215-3:2002, Clause 4.
5.5 Glass-reinforced plastics
Resins, reinforcements and laminates shall be arranged and protected against effects of the marine
environment to comply with the requirements of 7.15.
5.6 Other materials
Parts other than metal or wood shall comply with the requirements of ISO 12215-3:2002, Clause 6.
5.7 Buoyant material used in foam-filled buoyancy tubes
5.7.1 General
Buoyant materials used in foam-filled buoyancy tubes shall comply with the tests prescribed in 5.7.2
ISO 6185-4:2011(E)
5.7.2 Tests
5.7.2.1 General
Ten samples of the buoyant material shall be subjected to the tests prescribed in 5.7.2.2 to 5.7.2.4. They
shall be at least 300 mm square and of the same thickness as used in the buoyancy tube.
The dimensions of the samples shall be recorded at the end of the 10 day cycle.
The samples shall be carefully examined at the end of the tests and shall not show any sign of external
change of structure or of mechanical properties. Furthermore, two of the samples shall be cut open and
shall not show any sign of internal change of structure.
Six of the samples shall be used for the water absorption test in 5.7.2.3, two of which shall be so tested
after they have been subjected to the fuel resistance test in 5.7.2.4.
The results shall state the mass in kilograms which each sample can support in the water after one and
seven days of immersion. (The selection of a test method suitable for obtaining this result directly or
indirectly is left to the discretion of the testing body.) The reduction of buoyancy shall not exceed 16 %
for samples which have been exposed to the diesel oil conditioning and shall not exceed 5 % for all other
samples. The samples shall show no sign of damage such as shrinking, cracking, swelling, dissolution or
change of mechanical qualities.
5.7.2.2 Tests for stability under temperature cycling
Six samples shall be alternately subjected for 8 h to surrounding temperatures of −30 °C and +65 °C.
These alternating cycles need not follow immediately after each other; the following procedure is
acceptable.
a) On the first day, store the samples for 8 h at +65 °C.
b) Remove the samples from the warm chamber that same day and leave them exposed under ordinary
room conditions until the second day.
c) On the second day, store the samples in a cold chamber for 8 h at −30 °C.
d) Remove the samples from the cold chamber that same day and leave them exposed under ordinary
room conditions until the third day.
Repeat the procedure until the cycle (a,b,c,d) has been repeated 10 times.
5.7.2.3 Tests for water absorption
The tests shall be carried out in fresh water and the sample shall be immersed for a period of seven days
under a 1,25 m head of water.
The tests shall be carried out
a) on two samples as supplied, and
b) on two samples which have been subjected to the temperature cycling as prescribed in 5.7.2.2, and
c) on six samples which have been subjected to the temperature cycling as prescribed in 5.7.2.2
followed by the fuel resistance test prescribed in 5.7.2.4.
5.7.2.4 Fuel resistance test
The six samples to be tested shall be immersed horizontally for a period of 24 h at normal room
...