oSIST prEN ISO 12217-2:2021

Small craft - Stability and buoyancy assessment and categorization - Part 2: Sailing boats of hull length greater than or equal to 6 m (ISO/FDIS 12217-2:2020)

This document specifies methods for evaluating the stability and buoyancy of intact (i.e. undamaged) boats. The flotation characteristics of boats susceptible to swamping are also encompassed.
The evaluation of stability and buoyancy properties using this document will enable the boat to be assigned to a design category (A, B, C or D) appropriate to its design and maximum load.
This document is principally applicable to boats propelled primarily by sail (even if fitted with an auxiliary engine) of 6 m up to and including 24 m hull length. However, it can also be applied to boats less than 6 m if they are habitable multihulls or can be applied if they do not attain the desired design category specified in ISO 12217‑3 and they are decked and have quick-draining recesses which comply with ISO 11812.
In relation to habitable multihulls, this document includes assessment of susceptibility to inversion, definition of viable means of escape and requirements for inverted flotation.
This document excludes:
—    inflatable and rigid-inflatable boats covered by the ISO 6185 series, except for references made in the ISO 6185 series to specific clauses of the ISO 12217 series;
—    gondolas and pedalos;
—    surfboards including sailing surfboards; and
—    hydrofoils and foil stabilized boats when not operating in the displacement mode.
NOTE       Displacement mode means that the boat is only supported by hydrostatic forces.
It does not include or evaluate the effects on stability of towing, fishing, dredging or lifting operations, which need to be separately considered if appropriate.

Kleine Wasserfahrzeuge - Festlegung und Kategorisierung von Querstabilität und Auftrieb - Teil 2: Segelboote ab 6 m Rumpflänge (ISO/FDIS 12217-2:2020)

Dieses Dokument legt Verfahren für die Beurteilung von Stabilität und Auftrieb von intakten (d. h. unbeschädigten) Booten fest. Ebenfalls sind darin die Auftriebseigenschaften solcher Boote erfasst, die anfällig gegen Vollschlagen sind.
Die Beurteilung der Stabilitäts- und Auftriebseigenschaften nach diesem Dokuemnt erlaubt es, dem Boot eine Entwurfskategorie (A, B, C oder D) zuzuordnen, die seiner Auslegung und seiner maximalen Beladung entspricht.
Dieses Dokument ist grundsätzlich für Boote anwendbar, die in erster Linie durch Segel angetrieben werden (auch wenn das Boot über einen Hilfsmotor verfügt) mit einer Rumpflänge von 6 m bis einschließlich 24 m. Er kann jedoch auch auf Boote von weniger als 6 m Rumpflänge angewendet werden, wenn sie bewohnbare Mehrrumpfboote sind oder sie bei Anwendung von ISO 12217-3 nicht die gewünschte Entwurfskategorie erreichen, jedoch voll gedeckt sind und schnell-lenzende Rezesse entsprechend ISO 11812:2020 besitzen.
In Bezug auf bewohnbare Mehrrumpfboote beinhaltet dieses Dokument die Bewertung der Anfälligkeit gegen Kenterung, die Definition funktionsfähiger Fluchtmöglichkeiten und Anforderungen an die Schwimmfähigkeit im gekenterten Zustand (kieloben).
Ausgeschlossen von der Anwendung dieses Dokuments sind:
- Schlauchboote und Schlauchboote mit festem Rumpf (RIB) nach ISO 6185 mit Ausnahme der Verweisungen, die sich in jener Norm auf bestimmte Abschnitte in ISO 12217 beziehen;
- Gondeln und Tretboote;
- Surfbretter einschließlich Segel-Surfbretter;
- Tragflügelboote, motor- oder segelbetrieben, sofern sie nicht im Verdrängermodus betrieben werden.
ANMERKUNG Verdrängermodus bedeutet, dass das Boot nur durch hydrostatische Kräfte getragen wird.
Es enthält keine Angaben oder Beurteilungen zu den die Stabilität betreffenden Auswirkungen von Schleppen, Fischen, Baggern oder Kranarbeiten; diese müssen, falls erforderlich, gesondert berücksichtigt werden.
ACHTUNG - Die Übereinstimmung mit diesem Dokument stellt keine absolute Sicherheit oder Risikofreiheit bezüglich Kentern oder Sinken sicher.
WICHTIG - Die elektronische Datei dieses Dokuments enthält Farben, die als nützlich für das korrekte Verständnis dieses Dokuments erachtet werden. Anwender sollten daher erwägen, dieses Dokument farbig auszudrucken.

Petits navires - Évaluation et catégorisation de la stabilité et de la flottabilité - Partie 2: Bateaux à voiles d'une longueur de coque supérieure ou égale à 6 m (ISO/FDIS 12217-2:2020)

Le présent document spécifie les méthodes d'évaluation de la stabilité et de la flottabilité des bateaux à l'état intact (c'est-à-dire non endommagés). Les caractéristiques de flottabilité des bateaux susceptibles d'envahissement sont également prises en compte.
L'évaluation des propriétés de stabilité et de flottabilité effectuée en utilisant le présent document permettra d'attribuer à un bateau une catégorie de conception (A, B, C ou D) appropriée à sa conception et à sa charge maximale.
Le présent document est principalement applicable aux bateaux propulsés principalement par des voiles (même s'ils sont équipés d'un moteur auxiliaire), d'une longueur de coque de 6 m à 24 m inclus. Elle peut cependant être appliquée aux bateaux de moins de 6 m, s’il s’agit des multicoques habitables ou s'ils n'atteignent pas la catégorie de conception désirée spécifiée par l’ISO 12217-3 et s’ils sont pontés et munis de cavités rapidement autovideuses conformes à l'ISO 11812.
Pour ce qui concerne les multicoques habitables, la présente document comprend l'évaluation de la susceptibilité à l'inversion, la définition d'un moyen d'échappée viable et des exigences de flottabilité à l'état inversé.
La présente document exclut:
—    les bateaux pneumatiques et semi-rigides couverts par la série ISO 6185, excepté lorsque la série ISO 6185 fait référence à des paragraphes spécifiques de la série ISO 12217;
—    les gondoles et pédalos;
—    les planches de surf, y compris les planches de surf à voiles;
—    les hydrofoils et les bateaux stabilisés par des foils lorsqu'ils ne fonctionnent pas en mode à déplacement.
NOTE            Le mode à déplacement signifie que le bateau est uniquement supporté par des forces hydrostatiques.
Elle n'inclut ni n'évalue les effets sur la stabilité provenant du remorquage, de la pêche, du dragage ou d'opérations de levage, qui doivent être, si nécessaire, considérés séparément.

Mala plovila - Stabilnost in ocena vzgona ter kategorizacija - 2. del: Jadrnice s trupom, večjim ali enakim 6 m (ISO/FDIS 12217-2:2020)

General Information

• Status: Not Published
• Public Enquiry End Date: 31-Jan-2021
• ICS: 47.080 - Small craft
• Technical Committee: I13 - Imaginarni 13
• Current Stage: 4020 - Public enquire (PE) (Adopted Project)
• Start Date: 26-Nov-2020
• Due Date: 15-Apr-2021
• Completion Date: 01-Feb-2021
• Directive: 2013/53/EU - Directive 2013/53/EU of the European Parliament and of the Council of 20 November 2013 on recreational craft and personal watercraft and repealing Directive 94/25/EC
• Mandate: M/542 - [C(2015)8736] Standardisation Request to the European Committee for Standardisation and the European Committee for Electro-technical Standardisation as regards recreational craft and personal watercraft in support of Directive 2013/53/EU of the European Parliament and of the Council of 20 November 2013 on recreational craft and personal watercraft and repealing Directive 94/25/EC.
• Ref Project: prEN ISO 12217-2 - Small craft - Stability and buoyancy assessment and categorization - Part 2: -Sailing boats of hull length greater than or equal to 6 m (ISO/DIS 12217-2:2020)

Relations

• Revised: SIST EN ISO 12217-2:2017 - Small craft - Stability and buoyancy assessment and categorization - Part 2: Sailing boats of hull length greater than or equal to 6 m (ISO 12217-2:2015)
• Effective Date: 21-Aug-2019
• Revised: SIST EN ISO 12217-2:2017 - Small craft - Stability and buoyancy assessment and categorization - Part 2: Sailing boats of hull length greater than or equal to 6 m (ISO 12217-2:2015)
• Effective Date: 18-Jan-2023
• Revised: SIST EN ISO 12217-2:2017 - Small craft - Stability and buoyancy assessment and categorization - Part 2: Sailing boats of hull length greater than or equal to 6 m (ISO 12217-2:2015)
• Effective Date: 19-Jan-2023

Standards Content (Sample)

SLOVENSKI STANDARD
oSIST prEN ISO 12217-2:2021
01-januar-2021
Mala plovila - Stabilnost in ocena vzgona ter kategorizacija - 2. del: Jadrnice s
trupom, večjim ali enakim 6 m (ISO/FDIS 12217-2:2020)
Small craft - Stability and buoyancy assessment and categorization - Part 2: Sailing
boats of hull length greater than or equal to 6 m (ISO/FDIS 12217-2:2020)
Kleine Wasserfahrzeuge - Festlegung und Kategorisierung von Querstabilität und
Auftrieb - Teil 2: Segelboote ab 6 m Rumpflänge (ISO/FDIS 12217-2:2020)
Petits navires - Évaluation et catégorisation de la stabilité et de la flottabilité - Partie 2:
Bateaux à voiles d'une longueur de coque supérieure ou égale à 6 m (ISO/FDIS 12217-
2:2020)
Ta slovenski standard je istoveten z: prEN ISO 12217-2
ICS:
47.080 Čolni Small craft
oSIST prEN ISO 12217-2:2021 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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oSIST prEN ISO 12217-2:2021

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oSIST prEN ISO 12217-2:2021
FINAL
INTERNATIONAL ISO/FDIS
DRAFT
STANDARD 12217-2
ISO/TC 188
Small craft — Stability and buoyancy
Secretariat: SIS
assessment and categorization —
Voting begins on:
2020-11-20
Part 2:
Voting terminates on:
Sailing boats of hull length greater
2021-02-12
than or equal to 6 m
Petits navires — Évaluation et catégorisation de la stabilité et de la
flottabilité —
Partie 2: Bateaux à voiles d'une longueur de coque supérieure ou
égale à 6 m
ISO/CEN PARALLEL PROCESSING
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 SUPPOR TING
DOCUMENTATION.
IN ADDITION TO THEIR EVALUATION AS
Reference number
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO-
ISO/FDIS 12217-2:2020(E)
LOGICAL, COMMERCIAL AND USER PURPOSES,
DRAFT INTERNATIONAL STANDARDS MAY ON
OCCASION HAVE TO BE CONSIDERED IN THE
LIGHT OF THEIR POTENTIAL TO BECOME STAN-
DARDS TO WHICH REFERENCE MAY BE MADE IN
©
NATIONAL REGULATIONS. ISO 2020

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oSIST prEN ISO 12217-2:2021
ISO/FDIS 12217-2:2020(E)

COPYRIGHT PROTECTED DOCUMENT
© ISO 2020
All rights reserved. Unless otherwise specified, or required in the context of its implementation, 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
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: [phone]
Email: [e-mail]
Website: www.iso.org
Published in Switzerland
ii © ISO 2020 – All rights reserved

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oSIST prEN ISO 12217-2:2021
ISO/FDIS 12217-2:2020(E)

Contents Page
Foreword .v
Introduction .vi
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
3.1 Primary . 2
3.2 Hazards . 4
3.3 Downflooding . 4
3.4 Dimensions, areas and angles . 5
3.5 Condition, mass and volume . 6
3.6 Other terms and definitions . 9
4 Symbols .12
5 Procedure.13
5.1 Maximum load .13
5.2 Sailing or non-sailing .13
5.3 Tests, calculations and requirements to be applied .13
5.4 Variation in input parameters . .14
6 Requirements for monohull boats .14
6.1 Requirements to be applied .14
6.2 Downflooding .15
6.2.1 Downflooding openings .15
6.2.2 Downflooding height .18
6.2.3 Downflooding angle .19
6.3 Recess size .19
6.3.1 Application .19
6.3.2 Simplified methods .20
6.3.3 Direct calculation method .22
6.4 Minimum righting energy .22
6.5 Angle of vanishing stability .22
6.5.1 Normal requirement .23
6.5.2 Alternative requirement for design category B .23
6.6 Stability index (STIX) .24
6.6.1 Method .24
6.6.2 Dynamic stability factor (FDS) .25
6.6.3 Inversion recovery factor (FIR) .25
6.6.4 Knockdown recovery factor (FKR) .25
6.6.5 Displacement-length factor (FDL) .26
6.6.6 Beam-displacement factor (FBD) .26
6.6.7 Wind moment factor (FWM) .26
6.6.8 Downflooding factor (FDF) .27
6.6.9 Calculation of the stability index (STIX) .27
6.7 Knockdown-recovery test .27
6.8 Wind stiffness test .28
6.8.1 General.28
6.8.2 Practical test .28
6.8.3 Compliance by calculation .30
6.8.4 Requirements .31
6.9 Flotation requirements .32
6.10 Capsize-recovery test .33
6.11 Detection and removal of water .34
7 Requirements for catamarans, trimarans and form-stable monohulls .35
7.1 Requirements to be applied .35
© ISO 2020 – All rights reserved iii

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oSIST prEN ISO 12217-2:2021
ISO/FDIS 12217-2:2020(E)

7.2 Downflooding openings .35
7.3 Downflooding height .35
7.4 Recess size .35
7.5 Stability information .35
7.6 Safety signs .36
7.7 Bare poles factor .37
7.8 Rolling in breaking waves .37
7.9 Pitchpoling .38
7.10 Diagonal stability .38
7.11 Habitable multihull boats .38
7.12 Buoyancy when inverted .40
7.13 Escape after inversion .40
8 Safety signs .41
9 Application .42
9.1 Deciding the design category .42
9.2 Meaning of the design categories.42
Annex A (normative) Full method for required downflooding height .44
Annex B (normative) Methods for calculating downflooding angle .46
Annex C (normative) Determining the curve of righting moments .48
Annex D (normative) Method for calculating reserve of buoyancy after inversion or swamping .51
Annex E (normative) Flotation material and elements .53
Annex F (normative) Information for owner's manual .55
Annex G (normative) Determination of safe wind speed information .59
Annex H (normative) Determination of longitudinal righting characteristics .62
Annex I (informative) Summary of requirements .65
Annex J (informative) Worksheets .68
Annex K (informative) Illustration of recess retention level .87
Annex ZA (informative) Relationship between this European Standard and the essential
requirements of Directive 2013/53/EU aimed to be covered .88
Bibliography .90
iv © ISO 2020 – All rights reserved

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oSIST prEN ISO 12217-2:2021
ISO/FDIS 12217-2:2020(E)

Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www .iso .org/ directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www .iso .org/ patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO's adherence to the
World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT), see www .iso .org/
iso/ foreword .html.
This document was prepared by Technical Committee ISO/TC 188, Small craft, in collaboration with
the European Committee for Standardization (CEN) Technical Committee CEN/TC 464, Small craft, in
accordance with the Agreement on technical cooperation between ISO and CEN (Vienna Agreement).
This fourth edition of ISO 12217-2 cancels and replaces the third edition (ISO 12217-2:2015), of which it
constitutes a minor revision. The changes compared to the previous edition are as follows:
— all normative references have been updated and dated;
— the “allowance for the maximum mass of optional equipment and fittings not included in the
manufacturer’s basic outfit” has been moved from 3.5.4 (maximum load) to 3.5.5 (maximum load
condition);
— in Annex J, the calculation worksheet No. 1 has been corrected to reflect the above;
— minor editorial changes throughout the document.
A list of all parts in the ISO 12217 series can be found on the ISO website.
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.
© ISO 2020 – All rights reserved v

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oSIST prEN ISO 12217-2:2021
ISO/FDIS 12217-2:2020(E)

Introduction
This document enables the determination of limiting environmental conditions for which an individual
boat has been designed.
It enables the boat to be assigned to a design category appropriate to its design and maximum load. The
design categories used align with those in the Recreational Craft Directive of the European Union, EU
Directive 2013/53/EU.
Annex J provides worksheets to assist in the systematic assessment of a boat according to this document.
vi © ISO 2020 – All rights reserved

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oSIST prEN ISO 12217-2:2021
FINAL DRAFT INTERNATIONAL STANDARD ISO/FDIS 12217-2:2020(E)
Small craft — Stability and buoyancy assessment and
categorization —
Part 2:
Sailing boats of hull length greater than or equal to 6 m
CAUTION — Compliance with this document does not guarantee total safety or total freedom of
risk from capsize or sinking.
IMPORTANT — The electronic file of this document contains colours which are considered to be
useful for the correct understanding of the document. Users should therefore consider printing
this document using a colour printer.
1 Scope
This document specifies methods for evaluating the stability and buoyancy of intact (i.e. undamaged)
boats. The flotation characteristics of boats susceptible to swamping are also encompassed.
The evaluation of stability and buoyancy properties using this document will enable the boat to be
assigned to a design category (A, B, C or D) appropriate to its design and maximum load.
This document is principally applicable to boats propelled primarily by sail (even if fitted with an
auxiliary engine) of 6 m up to and including 24 m hull length. However, it can also be applied to boats
less than 6 m if they are habitable multihulls or may be applied if they do not attain the desired design
category specified in ISO 12217 3 and they are decked and have quick-draining recesses which comply
with ISO 11812:2020.
In relation to habitable multihulls, this document includes assessment of susceptibility to inversion,
definition of viable means of escape and requirements for inverted flotation.
This document excludes:
— inflatable and rigid-inflatable boats covered by ISO 6185, except for references made in ISO 6185 to
specific clauses of ISO 12217;
— gondolas and pedalos;
— surfboards including sailing surfboards; and
— hydrofoils and foil stabilized boats when not operating in the displacement mode.
NOTE Displacement mode means that the boat is only supported by hydrostatic forces.
It does not include or evaluate the effects on stability of towing, fishing, dredging or lifting operations,
which need to be separately considered if appropriate.
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 2896:2001, Rigid cellular plastics — Determination of water absorption
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oSIST prEN ISO 12217-2:2021
ISO/FDIS 12217-2:2020(E)

ISO 3864-1:2011, Graphical symbols — Safety colours and safety signs — Part 1: Design principles for
safety signs and safety markings
ISO 8666:2020, Small craft — Principal data
1)
ISO 9093:— , Small craft — Seacocks and through-hull fittings
ISO 9094:2015, Small craft — Fire protection
ISO 10240:2019, Small craft — Owner's manual
ISO 11812:2020, Small craft — Watertight or quick-draining recesses and cockpits
ISO 12216:2020, Small craft — Windows, portlights, hatches, deadlights and doors — Strength and
watertightness requirements
2)
ISO 12217-1:— , Small craft — Stability and buoyancy assessment and categorization — Part 1: Non-
sailing boats of hull length greater than or equal to 6 m
3)
ISO 12217-3:— , Small craft — Stability and buoyancy assessment and categorization — Part 3: Boats of
hull length less than 6 m
4)
ISO 14946:— , Small craft — Maximum load capacity
ISO 15083:2020, Small craft — Bilge-pumping systems
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
NOTE The meanings of certain symbols used in the definitions are given in Clause 4.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at http:// www .electropedia .org/
3.1 Primary
3.1.1
design category
description of the sea and wind conditions for which a boat is assessed to be suitable
Note 1 to entry: See also 9.2.
1) Under preparation, revision of ISO 9093-1:1994 and ISO 9093-2:2002. Stage at the time of publication of this
FDIS: ISO/FDIS 9093:2020. At publication of ISO 12217-2, the publication date of ISO 9093 will be updated and this
footnote removed.
2) Under preparation, revision of ISO 12217-1:2015. Stage at the time of publication of this FDIS:
ISO/FDIS 12217-1:2020. At publication of ISO 12217-2, the publication date of ISO 12217-1 will be updated and
this footnote removed.
3) Under preparation, revision of ISO 12217-3:2015. Stage at the time of publication of this FDIS:
ISO/FDIS 12217-3:2020. At publication of ISO 12217-2, the publication date of ISO 12217-3 will be updated and
this footnote removed.
4) Under preparation, revision of ISO 14946:2001. Stage at the time of publication of this FDIS:
ISO/FDIS 14946.2:2020. At publication of ISO 12217-2, the publication date of ISO 14946 will be updated and this
footnote removed.
2 © ISO 2020 – All rights reserved

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oSIST prEN ISO 12217-2:2021
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3.1.2
sailing boat
boat for which the primary means of propulsion is by wind power, having reference sail area (3.4.8)
2/3
A ≥ 0,07(m )
S LDC
Note 1 to entry: m is the mass of the boat in the maximum load condition, expressed in kilograms.
LDC
3.1.3
catamaran
boat with two main load-bearing hulls
EXAMPLE Boats with a centreline or bridge-deck nacelle which supports less than 30 % of the mass in the
maximum load condition are considered to be catamarans. Proas are asymmetric catamarans.
3.1.4
trimaran
boat with a centre main hull and two sidehulls in which the centre hull, when the boat is upright,
supports 30 % or more of the mass in the maximum load condition
3.1.5
recess
volume open to the air that might retain water within the range of loading conditions and
corresponding trims
EXAMPLE Cockpits, wells, open volumes or areas bounded by bulwarks or coamings.
Note 1 to entry: Cabins, shelters or lockers provided with closures according to the requirements of ISO 12216
are not recesses.
Note 2 to entry: Cockpits that are open aft to the sea are considered to be recesses. Flush decks without bulwarks
or coamings are not recesses.
3.1.6
quick-draining recess
recess fulfilling all the requirements of ISO 11812 for “quick-draining cockpits and recesses”
Note 1 to entry: According to its characteristics, a cockpit may be considered to be quick-draining for one design
category, but not for a higher category.
Note 2 to entry: ISO 11812 contains requirements with which most sailing dinghies cannot comply.
3.1.7
watertight recess
recess fulfilling all the requirements of ISO 11812 for “watertight cockpits and recesses”
Note 1 to entry: This term only implies requirements in respect of watertightness and sill heights, but not those
for drainage.
3.1.8
fully enclosed boat
boat in which the horizontal projection of the sheerline area comprises any combination of
— watertight deck and superstructure, and/or
— quick-draining recesses which comply with ISO 11812, and/or
— watertight recesses complying with ISO 11812 with a combined volume of less than (L B F )/40, and
H H M
all closing appliances have their degree of watertightness in accordance with ISO 12216
Note 1 to entry: The size of recesses permitted for boats of design category A, B or some boats of design category
C is restricted by the requirements of 6.3.
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oSIST prEN ISO 12217-2:2021
ISO/FDIS 12217-2:2020(E)

3.1.9
habitable boat
boat having a fully enclosed cabin with rigid roof fitted with one or more bunks,
...