EN ISO 11812:2024
(Main)Small craft - Watertight or quick-draining recesses and cockpits (ISO 11812:2020)
Small craft - Watertight or quick-draining recesses and cockpits (ISO 11812:2020)
This document specifies watertightness, draining time and sill heights requirements for watertight and quick-draining recesses and cockpits in small craft of up to 24 m load line length (see Reference [1]).
Recesses located in elevated parts of the craft are covered by this document.
This document does not specify requirements for the size, the shape and the location of recesses or cockpits. It only considers draining by gravity, and not by pumping or other methods.
It only considers normal operation of the craft, but unattended craft recess issues are out of scope.
This document does not guarantee that the water contained in a watertight or quick-draining recess or cockpit will not affect the stability and buoyancy of the craft, which are covered by ISO 12217-1, ISO 12217-2 and ISO 12217-3.
Kleine Wasserfahrzeuge - Wasserdichte und schnell-lenzende Rezesse und Plichten (ISO 11812:2020)
Petits navires - Cavités et cockpits étanches ou rapidement autovideurs (ISO 11812:2020)
Le présent document spécifie les exigences relatives à l'étanchéité, au temps de vidange et à la hauteur des surbaux pour les cavités et les cockpits étanches et rapidement autovideurs dans les petits navires d'une longueur de ligne de charge inférieure ou égale à 24 m (voir la Référence [1]).
Les cavités situées dans les parties surélevées du bateau sont couvertes par ce document.
Ce document ne spécifie pas les exigences concernant la taille, la forme et l'emplacement des cavités ou des cockpits. Il ne prend en compte que la vidange par gravité, et non par pompage ou par d'autres méthodes.
Il ne prend en compte que le fonctionnement normal du bateau, mais les problèmes relatifs aux cavités des bateaux laissés sans surveillance sont en dehors du domaine d'application.
Le présent document ne garantit pas que l’eau contenue dans une cavité ou un cockpit étanche ou rapidement autovideur n’affectera pas la stabilité et la flottabilité du navire qui sont couvertes par l’ISO 12217-1, l’ISO 12217-2 et l’ISO 12217-3.
Mala plovila - Vodotesni prostori ter prostori in kabine s hitrim odvajanjem vode (ISO 11812:2020)
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
01-december-2024
Mala plovila - Vodotesni prostori ter prostori in kabine s hitrim odvajanjem vode
(ISO 11812:2020)
Small craft - Watertight or quick-draining recesses and cockpits (ISO 11812:2020)
Kleine Wasserfahrzeuge - Wasserdichte und schnell-lenzende Rezesse und Plichten
(ISO 11812:2020)
Petits navires - Cavités et cockpits étanches ou rapidement autovideurs (ISO
11812:2020)
Ta slovenski standard je istoveten z: EN ISO 11812:2024
ICS:
47.080 Čolni Small craft
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EN ISO 11812
EUROPEAN STANDARD
NORME EUROPÉENNE
September 2024
EUROPÄISCHE NORM
ICS 47.080 Supersedes EN ISO 11812:2018
English Version
Small craft - Watertight or quick-draining recesses and
cockpits (ISO 11812:2020)
Petits navires - Cavités et cockpits étanches ou Kleine Wasserfahrzeuge - Wasserdichte und schnell-
rapidement autovideurs (ISO 11812:2020) lenzende Rezesse und Plichten (ISO 11812:2020)
This European Standard was approved by CEN on 12 August 2024.
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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye 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
© 2024 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 11812:2024 E
worldwide for CEN national Members.
Contents Page
European foreword . 3
European foreword
The text of ISO 11812:2020 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 11812:2024 by
Technical Committee CEN/TC 464 “Small Craft” the secretariat of which is held by SIS.
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 2025, and conflicting national standards shall
be withdrawn at the latest by March 2025.
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 is read in conjunction with EN ISO 11812:2024/A1:2024.
This document supersedes EN ISO 11812:2018.
Any feedback and questions on this document should be directed to the users’ national standards body.
A complete listing of these bodies can be found on the CEN website.
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, France, Germany, Greece, Hungary, Iceland,
Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of
North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and the
United Kingdom.
Endorsement notice
The text of ISO 11812:2020 has been approved by CEN as EN ISO 11812:2024 without any modification.
INTERNATIONAL ISO
STANDARD 11812
Second edition
2020-07
Small craft — Watertight or quick-
draining recesses and cockpits
Petits navires — Cavités et cockpits étanches ou rapidement
autovideurs
Reference number
ISO 11812:2020(E)
©
ISO 2020
ISO 11812:2020(E)
© 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.
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Phone: +41 22 749 01 11
Email: copyright@iso.org
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Published in Switzerland
ii © ISO 2020 – All rights reserved
ISO 11812:2020(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Symbols . 5
5 General . 6
5.1 Loading and measurement conditions . 6
5.2 Requirements for watertight and quick-draining recesses . 6
6 Watertightness requirements. 6
6.1 Watertightness requirements for watertight recesses . 6
6.2 Watertightness requirements for quick-draining recesses . 7
7 Requirements for companionway sills . 7
7.1 Companionway sills . 7
7.2 Quick-draining recess with a reduced risk of flooding . 8
7.3 Sill height measurement . 8
7.4 Minimum companionway sill height for quick-draining recesses . 8
8 Height of recess bottom above waterline for quick-draining recesses .8
9 Quick-draining recesses — Single bottom recess drainage . 9
9.1 Drainage general requirements . 9
9.2 Drain requirements . 9
9.2.1 Number and dimensions . 9
9.2.2 Special provisions . 9
9.2.3 Installation .10
9.3 Drainage calculation requirements .10
9.3.1 Drainage calculation principle and assessment methods .10
9.3.2 Simplified drainage assessment method .11
10 Quick-draining recesses — Multi-bottom recess drainage .12
10.1 Drainage general requirements .12
10.2 Drainage calculations .12
10.3 Drainage requirements for a foot basin .13
11 Owner’s manual.14
11.1 General recommendation for use .14
11.2 Recommendation for use from Table 4 — Companionway opening .14
Annex A (normative) Full calculation method for draining time .16
Annex B (informative) Technical background — Source of the calculations used .24
Annex C (informative) Examples of “quick-draining” recesses .30
Bibliography .32
ISO 11812:2020(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 WTO
principles in the Technical Barriers to Trade (TBT), see Foreword - Supplementary information.
This document was prepared by Technical Committee ISO/TC 188, Small craft.
This second edition cancels and replaces the first edition (ISO 11812:2001), which has been technically
revised.
The main changes compared to the previous edition are as follows:
— systematic usage of the general term "recess" instead of "cockpit";
— introduction of the concept of recess open to the s
...
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