ISO 8728:2024

Ships and marine technology — Marine gyro-compasses

This document specifies the construction, performance, and type testing for gyro-compasses which are required by the International Convention for the Safety of Life at Sea (SOLAS), 1974 (as amended), Chapter V, Regulation 19. This document specifies the minimum requirements, the construction, performance, and type testing for gyro-compasses, which required to comply with the performance standards adopted by the IMO Resolution A.424(XI).

Navires et technologie maritime — Compas gyroscopiques à usage marin

General Information

• Status: Published
• Publication Date: 15-Jan-2024
• ICS: 47.020.70 - Navigation and control equipment
• Technical Committee: ISO/TC 8/SC 6 - Navigation and ship operations
• Drafting Committee: ISO/TC 8/SC 6 - Navigation and ship operations
• Current Stage: 6060 - International Standard published
• Start Date: 16-Jan-2024
• Due Date: 09-Nov-2023
• Completion Date: 16-Jan-2024

Relations

• Revises: ISO 8728:2014 - Ships and marine technology — Marine gyro-compasses
• Effective Date: 06-Jun-2022

Standards Content (Sample)

FINAL
INTERNATIONAL ISO/FDIS
DRAFT
STANDARD 8728
ISO/TC 8/SC 6
Ships and marine technology —
Secretariat: JISC
Marine gyro-compasses
Voting begins on:
2023-09-11
Navires et technologie maritime — Compas gyroscopiques à usage
marin
Voting terminates on:
2023-11-06
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 8728:2023(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 2023

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ISO/FDIS 8728:2023(E)
FINAL
INTERNATIONAL ISO/FDIS
DRAFT
STANDARD 8728
ISO/TC 8/SC 6
Ships and marine technology —
Secretariat: JISC
Marine gyro-compasses
Voting begins on:
Navires et technologie maritime — Compas gyroscopiques à usage
marin
Voting terminates on:
COPYRIGHT PROTECTED DOCUMENT
© ISO 2023
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.
RECIPIENTS OF THIS DRAFT ARE INVITED TO
ISO copyright office
SUBMIT, WITH THEIR COMMENTS, NOTIFICATION
OF ANY RELEVANT PATENT RIGHTS OF WHICH
CP 401 • Ch. de Blandonnet 8
THEY ARE AWARE AND TO PROVIDE SUPPOR TING
CH-1214 Vernier, Geneva
DOCUMENTATION.
Phone: [phone]
IN ADDITION TO THEIR EVALUATION AS
Reference number
Email: [e-mail]
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO­
ISO/FDIS 8728:2023(E)
Website: www.iso.org
LOGICAL, COMMERCIAL AND USER PURPOSES,
DRAFT INTERNATIONAL STANDARDS MAY ON
Published in Switzerland
OCCASION HAVE TO BE CONSIDERED IN THE
LIGHT OF THEIR POTENTIAL TO BECOME STAN­
DARDS TO WHICH REFERENCE MAY BE MADE IN
ii
  © ISO 2023 – All rights reserved
NATIONAL REGULATIONS. © ISO 2023

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ISO/FDIS 8728:2023(E)
Contents Page
Foreword .v
Introduction . vi
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Abbreviated terms . 3
5 Construction requirements . 4
6 Performance requirements . .5
6.1 Accuracy in latitudes up to 60° . 5
6.1.1 Settling time . 5
6.1.2 Settle point error . 5
6.1.3 Settling time under operational conditions . 5
6.1.4 Settle point error under general conditions .
...

ISO/FDIS 8728:2023(E)
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ISO TC 8/SC 6
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Secretariat: JISC
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Date: 2023-07-0308-28
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Ships and marine technology — Marine gyro-compasses
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Navires et technologie maritime — Compas gyroscopiques à usage marin
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© ISO 2023 Formatted
Formatted: Default Paragraph Font
All rights reserved. Unless otherwise specified, or required in the context of its implementation,
Formatted: Default Paragraph Font
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,
Formatted: No page break before, Adjust space
without prior written permission. Permission can be requested from either ISO at the address between Latin and Asian text, Adjust space between
below or ISO’sISO's member body in the country of the requester. Asian text and numbers
Formatted: Adjust space between Latin and Asian text,
ISO copyright officeCopyright Office
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CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Formatted: Adjust space between Latin and Asian text,
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Phone: + 41 22 749 01 11
Email: [e-mail]
Email: [e-mail]
Website: www.iso.orgwww.iso.org
Formatted: Adjust space between Latin and Asian text,
Adjust space between Asian text and numbers
Published in Switzerland.

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ISO/FDIS 8728:2023(E)
Contents
Foreword . 5
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
4 Abbreviated terms . 4
5 Construction requirements . 4
6 Performance requirements . 5
6.1 Accuracy in latitudes up to 60° . 5
6.1.1 Settling time . 5
6.1.2 Settle point error . 5
6.1.3 Settling time under operational conditions . 6
6.1.4 Settle point error under general conditions . 6
6.1.5 Residual error in correction . 6
6.1.6 Effect of alteration of speed . 6
6.1.7 Effect of alteration of course . 6
6.1.8 Accuracy on a Scorsby table . 6
6.1.9 Synchronization between the master compass and repeaters .
...