Ships and marine technology — Life saving and fire protection — Sea anchors for survival craft and rescue boats

This document specifies requirements for the design, performance and prototype testing of sea anchors fitted to survival craft (lifeboats and liferafts) and rescue boats in accordance with the IMO International Life-Saving Appliance Code.

Navires et technologie maritime — Ancres flottantes pour embarcations de sauvetage et canots de secours

General Information

Status
Published
Publication Date
18-Jul-2018
Current Stage
6060 - International Standard published
Start Date
19-Jul-2018
Completion Date
19-Jul-2018
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ISO 17339:2018 - Ships and marine technology -- Life saving and fire protection -- Sea anchors for survival craft and rescue boats
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INTERNATIONAL ISO
STANDARD 17339
Second edition
2018-07
Ships and marine technology — Life
saving and fire protection — Sea
anchors for survival craft and rescue
boats
Navires et technologie maritime — Ancres flottantes pour
embarcations de sauvetage et canots de secours
Reference number
ISO 17339:2018(E)
ISO 2018
---------------------- Page: 1 ----------------------
ISO 17339:2018(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2018

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
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Phone: +41 22 749 01 11
Fax: +41 22 749 09 47
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO 2018 – All rights reserved
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ISO 17339:2018(E)
Contents Page

Foreword ........................................................................................................................................................................................................................................iv

Introduction ..................................................................................................................................................................................................................................v

1 Scope ................................................................................................................................................................................................................................. 1

2 Normative references ...................................................................................................................................................................................... 1

3 Terms and definitions ..................................................................................................................................................................................... 1

4 Design and performance criteria ........................................................................................................................................................ 1

4.1 General ........................................................................................................................................................................................................... 1

4.2 Drag force .................................................................................................................................................................................................... 2

4.3 Towing line ................................................................................................................................................................................................. 2

4.4 Shroud line ................................................................................................................................................................................................. 2

4.5 Attachments .............................................................................................................................................................................................. 2

4.6 Stabilization ............................................................................................................................................................................................... 2

4.7 Deployment ................................................................................................................................................................................................ 2

4.8 Design ............................................................................................................................................................................................................. 2

5 Prototype testing .................................................................................................................................................................................................. 3

5.1 Material test ............................................................................................................................................................................................... 3

5.1.1 Strength test for fabric ................................................................................................................................................ 3

5.1.2 Strength test for structural webbing .............................................................................................................. 4

5.1.3 Corrosion test for metal attachments ............................................................................................................ 5

5.2 Temperature cycling test ................................................................................................................................................................ 5

5.3 Deployment test ..................................................................................................................................................................................... 5

5.4 Towing test ................................................................................................................................................................................................. 6

5.5 Strength test .............................................................................................................................................................................................. 6

Bibliography ................................................................................................................................................................................................................................ 7

© ISO 2018 – All rights reserved iii
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ISO 17339:2018(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 World Trade Organization (WTO) principles in the

Technical Barriers to Trade (TBT) see the following URL: www .iso .org/iso/foreword .html.

This document was prepared by Technical Committee ISO/TC 8, Ships and marine technology,

Subcommittee SC 1, Maritime safety.

This second edition cancels and replaces the first edition (ISO 17339:2002), which has been technically

revised.

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.
iv © ISO 2018 – All rights reserved
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ISO 17339:2018(E)
Introduction

A sea anchor is a vital component to a drifting waterborne craft in keeping the preferred angle to wind

direction, enhancing stability and reducing drift speed. The International Life-Saving Appliance Code

prescribes the carriage and use of sea anchors for survival craft and rescue boats, yet the revised

recommendation on testing of lifesaving appliances does not provide requirements of performance

and testing procedure for the sea anchors. This document addresses those areas in which the IMO

recommendation is silent, in order to facilitate consistent implementation by maritime Administrations.

This document addresses the performance and testing of sea anchors for survival craft and rescue boats

and it is intended for use as a companion to the IMO Revised recommendation on testing of life-saving

appliances and also to encompass all other relevant life-saving appliances covered by this document

and not necessarily regulated by IMO instruments.
© ISO 2018 – All rights reserved v
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INTERNATIONAL STANDARD ISO 17339:2018(E)
Ships and marine technology — Life saving and fire
protection — Sea anchors for survival craft and rescue boats
1 Scope

This document specifies requirements for the design, performance and prototype testing of sea

anchors fitted to survival craft (lifeboats and liferafts) and rescue boats in accordance with the IMO

International Life-Saving Appliance Code.
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 9227:2012, Corrosion tests in artificial atmospheres — Salt spray tests

ISO 4892-2:2013, Plastics — Methods of exposure to laboratory light sources — Part 2: Xenon-arc lamps

ASTM D 471-06, Standard Test Method for Rubber Property-Effect of Liquids
EN 590, Automotive fuels - Diesel - Requirements and test methods
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.

ISO and IEC maintain terminological databases for use in standardization at the following addresses:

— IEC Electropedia: available at http: //www .electropedia .org/
— ISO Online browsing platform: available at https: //www .iso .org/obp
3.1
sea anchor

device to stabilize the motion and to reduce wind-driven drift of a waterborne craft such as a survival

craft or rescue boat
4 Design and performance criteria
4.1 General
A sea anchor shall
1) be constructed with proper workmanship and materials;

2) not be damaged in stowage throughout the air temperature range −30 °C to +65 °C;

3) be capable of operating throughout the seawater temperature range −1 °C to +30 °C;

4) be rot-proof, corrosion-resistant, and not be unduly affected by seawater, oil or fungal attack;

5) be resistant to sunlight deterio
...

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