Ships and marine technology — Rate of turn indicators

This document specifies the construction, performance requirements, methods of testing and required test results for the rate of turn indicators required by Clause 2.9.1, Regulation 19, chapter V, SOLAS 1974 (as amended, 2000). It is based upon the requirements of IMO Resolution A.526(13), and is also associated with IMO Resolution A.694 (17) and IEC 60945. Where a requirement in this document is different from that in IEC 60945, the requirement in this document takes precedence. NOTE All requirements that are extracted from the recommendations of IMO Resolution A.526(13) on performance standards for rate of turn indicators are printed in italics and the resolution and paragraph numbers are indicated in brackets.

Navires et technologie maritime — Fréquence des indicateurs de direction

General Information

Status
Published
Publication Date
22-Feb-2022
Current Stage
6060 - International Standard published
Start Date
23-Feb-2022
Due Date
13-Feb-2023
Completion Date
23-Feb-2022
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INTERNATIONAL ISO
STANDARD 20672
Second edition
2022-02
Ships and marine technology — Rate
of turn indicators
Navires et technologie maritime — Fréquence des indicateurs de
direction
Reference number
ISO 20672:2022(E)
© ISO 2022

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ISO 20672:2022(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2022
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
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
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  © ISO 2022 – All rights reserved

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ISO 20672:2022(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Construction . 2
4.1 General . 2
4.2 Indication. 2
4.3 Range scales . 2
4.4 Illumination and lighting. 3
4.5 Type of indicator . 3
4.6 Alert . . 3
5 Performance requirements . .3
5.1 Accuracy . 3
5.2 Operation . 3
5.3 Insulation resistance and high voltage . 3
6 Methods of testing and required test results . 4
6.1 Construction . 4
6.2 Environmental tests . 4
6.3 Accuracy test . 4
6.4 Operation test . 4
6.5 Insulation resistance and high voltage test . 4
6.6 Alert test . . . 4
7 Interface . 4
8 Marking and identification .5
9 Information . 5
Bibliography . 6
iii
© ISO 2022 – All rights reserved

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ISO 20672:2022(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 8, Ships and marine technology,
Subcommittee SC 6, Navigation and ship operations.
This second edition cancels and replaces the first edition (ISO 20672:2007), which has been technically
revised. It also incorporates the Technical Corrigendum ISO 20672:2007/Cor 1:2008.
The main changes are as follows:
— in Clause 2, deleted IEC 61162-1 and IEC 61162-2;
— in 4.5 and 6.1, added a provision on displays for presentation and a reference to IEC 62288;
— in new 4.6 and 6.6, added a provision on alerts and a reference to IEC 62923-1 and IEC 62923-2;
— in Clause 7, updated interface requirements;
— in the Bibliography, added IEC 61162-1, IEC 61162-2, IEC 61162-450, IEC 62288, IEC 62923-1,
IEC 62923-2, IMO Resolution MSC.191(79), IMO Resolution MSC.302(87) and IMO Resolution
MSC.466(101).
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.
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INTERNATIONAL STANDARD ISO 20672:2022(E)
Ships and marine technology — Rate of turn indicators
1 Scope
This document specifies the construction, performance requirements, methods of testing and required
test results for the rate of turn indicators required by Clause 2.9.1, Regulation 19, chapter V, SOLAS 1974
(as amended, 2000).
It is based upon the requirements of IMO Resolution A.526(13), and is also associated with IMO
Resolution A.694 (17) and IEC 60945.
Where a requirement in this document is different from that in IEC 60945, the requirement in this
document takes precedence.
NOTE All requirements that are extracted from the recommendations of IMO Resolution A.526(13)
on performance standards for rate of turn indicators are printed in italics and the resolution and paragraph
numbers are indicated in brackets.
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.
IEC 60945, Marine navigation and radiocommunication equipment and systems — General requirements
— Methods of testing and required test results
IMO Resolution A.526(13), Performance standards for rate-of-turn indicators
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminology databases for use in standardization at the following addresses:
— ISO Online browsing platform: a
...

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