Ships and marine technology — Anchor chain releasers

This document provides a classification of anchor chain releasers and a description of their structure. It also specifies their basic dimensions, requirements and test methods, and their marking and surface signs. It is applicable to the design, production and acceptance of anchor chain releasers.

Navires et technologie maritime — Systèmes de détente pour chaînes d'ancre

General Information

Status
Published
Publication Date
18-Oct-2021
Current Stage
6060 - International Standard published
Start Date
19-Oct-2021
Completion Date
19-Oct-2021
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INTERNATIONAL ISO
STANDARD 24059
First edition
2021-10
Ships and marine technology —
Anchor chain releasers
Navires et technologie maritime — Systèmes de détente pour chaînes
d'ancre
Reference number
ISO 24059:2021(E)
© ISO 2021
---------------------- Page: 1 ----------------------
ISO 24059:2021(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2021

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: +41 22 749 01 11
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
© ISO 2021 – All rights reserved
---------------------- Page: 2 ----------------------
ISO 24059:2021(E)
Contents Page

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

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

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

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

4 Classification, structures and main dimensions ............................................................................................................... 1

4.1 Classification ............................................................................................................................................................................................ 1

4.2 Structure and main dimensions ........................................................................................................................................... ... 2

5 Requirements .......................................................................................................................................................................................................... 7

5.1 Materials ...................................................................................................................................................................................................... 7

5.2 External appearance ......................................................................................................................................................................... 7

5.3 Operational performance.............................................................................................................................................................. 7

5.4 Derusting ..................................................................................................................................................................................................... 7

5.5 Tolerance ...................................................................................................................................................................................................... 7

5.6 Strength ........................................................................................................................................................................................................ 7

5.7 Tightness ..................................................................................................................................................................................................... 8

6 Test methods ............................................................................................................................................................................................................ 8

6.1 Materials ...................................................................................................................................................................................................... 8

6.2 External appearance ......................................................................................................................................................................... 8

6.3 Operational performance.............................................................................................................................................................. 8

6.4 Derusting ..................................................................................................................................................................................................... 8

6.5 Tolerance ...................................................................................................................................................................................................... 8

6.6 Strength ........................................................................................................................................................................................................ 8

6.7 Tightness ..................................................................................................................................................................................................... 8

7 Marking ........................................................................................................................................... ............................................................................... 9

8 Signs .................................................................................................................................................................................................................................. 9

Annex A (normative) Strength calculations .............................................................................................................................................10

Bibliography .............................................................................................................................................................................................................................13

iii
© ISO 2021 – All rights reserved
---------------------- Page: 3 ----------------------
ISO 24059:2021(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 4, Outfitting and deck machinery.

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 2021 – All rights reserved
---------------------- Page: 4 ----------------------
INTERNATIONAL STANDARD ISO 24059:2021(E)
Ships and marine technology — Anchor chain releasers
1 Scope

This document provides a classification of anchor chain releasers and a description of their structure.

It also specifies their basic dimensions, requirements and test methods, and their marking and surface

signs.

It is applicable to the design, production and acceptance of anchor chain releasers.

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 2768-1, General tolerances — Part 1: Tolerances for linear and angular dimensions without individual

tolerance indications

ISO 3828, Shipbuilding and marine structures — Deck machinery — Vocabulary and symbols

ISO 8501-1, Preparation of steel substrates before application of paints and related products — Visual

assessment of surface cleanliness — Part 1: Rust grades and preparation grades of uncoated steel substrates

and of steel substrates after overall removal of previous coatings
3 Terms and definitions

For the purposes of this document, the terms and definitions given in ISO 3828 apply.

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

— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at https:// www .electropedia .org/
4 Classification, structures and main dimensions
4.1 Classification

Anchor chain releasers are classified into the types shown in Table 1, based on their structure and

application.
Table 1 — Types and parameters of anchor chain releasers
Nominal size
No. Classification Type code Application
1 Tongue anchor chain releaser A 36 to 152
Grade 3 anchor chains
2 Plug type anchor chain releaser B 50 to 120 of the sizes specified in
ISO 1704
3 Plug type anchor chain releaser C 50 to 120
© ISO 2021 – All rights reserved
---------------------- Page: 5 ----------------------
ISO 24059:2021(E)
4.2 Structure and main dimensions

4.2.1 The structure and main dimensions of Type A anchor chain releasers are shown in Figure 1 and

Table 2.
Key
1 trunk 5 reinforced stiffener 9 cover 13 spring washer 16 securing nut
2 chain hook 6 securing buckle 10 handle 14 tongued pin 17 reinforced bracket
3 liner 7 flange 11 hexagon bolt 15 packing 18 instructions plate
4 threaded shaft 8 gasket 12 hexagon nut
Figure 1 — Structure of Type A anchor chain releasers
Table 2 — Main dimensions of Type A anchor chain releasers
Dimensions in millimetres
Theoretic
Chain
mass
L L L × t L D D D × t D M m n × d
1 2 3 2 4 1 2 3 1 4 1
diameter
36 to 46 735 342 150 × 36 119 375 325 273 × 13 360 Tr60 × 4 110 12 × ø 18 79
48 to 56 835 378 174 × 50 131 440 390 325 × 14 410 Tr70 × 4 134 12 ×
...

INTERNATIONAL ISO
STANDARD 24059
First edition
Ships and marine technology —
Anchor chain releasers
PROOF/ÉPREUVE
Reference number
ISO 24059:2021(E)
ISO 2021
---------------------- Page: 1 ----------------------
ISO 24059:2021(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2021

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: +41 22 749 01 11
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii PROOF/ÉPREUVE © ISO 2021 – All rights reserved
---------------------- Page: 2 ----------------------
ISO 24059:2021(E)
Contents Page

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

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

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

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

4 Classification, structures and main dimensions ................................................................................................................. 1

4.1 Classification ............................................................................................................................................................................................. 1

4.2 Structure and main dimensions ............................................................................................................................................... 2

5 Requirements .......................................................................................................................................................................................................... 7

5.1 Materials ....................................................................................................................................................................................................... 7

5.2 External appearance .......................................................................................................................................................................... 7

5.3 Operational performance............................................................................................................................................................... 7

5.4 Derusting ...................................................................................................................................................................................................... 7

5.5 Tolerance ...................................................................................................................................................................................................... 7

5.6 Strength ......................................................................................................................................................................................................... 7

5.7 Tightness ...................................................................................................................................................................................................... 8

6 Test methods ............................................................................................................................................................................................................. 8

6.1 Materials ....................................................................................................................................................................................................... 8

6.2 External appearance .......................................................................................................................................................................... 8

6.3 Operational performance............................................................................................................................................................... 8

6.4 Derusting ...................................................................................................................................................................................................... 8

6.5 Tolerance ...................................................................................................................................................................................................... 8

6.6 Strength ......................................................................................................................................................................................................... 8

6.7 Tightness ...................................................................................................................................................................................................... 8

7 Marking .......................................................................................................................................................................................................................... 9

8 Signs ................................................................................................................................................................................................................................... 9

Annex A (normative) Strength calculations ...............................................................................................................................................10

Bibliography .............................................................................................................................................................................................................................13

© ISO 2021 – All rights reserved PROOF/ÉPREUVE iii
---------------------- Page: 3 ----------------------
ISO 24059:2021(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 4, Outfitting and deck machinery.

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 PROOF/ÉPREUVE © ISO 2021 – All rights reserved
---------------------- Page: 4 ----------------------
INTERNATIONAL STANDARD ISO 24059:2021(E)
Ships and marine technology — Anchor chain releasers
1 Scope

This document provides a classification of anchor chain releasers and a description of their structure.

It also specifies their basic dimensions, requirements and test methods, and their marking and surface

signs.

It is applicable to the design, production and acceptance of anchor chain releasers.

2 Normative references

The following referenced documents are indispensable for the application 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 2768-1, General tolerances — Part 1: Tolerances for linear and angular dimensions without individual

tolerance indications

ISO 3828, Shipbuilding and marine structures — Deck machinery — Vocabulary and symbols

ISO 8501-1, Preparation of steel substrates before application of paints and related products — Visual

assessment of surface cleanliness — Part 1: Rust grades and preparation grades of uncoated steel substrates

and of steel substrates after overall removal of previous coatings
3 Terms and definitions

For the purposes of this document, the terms and definitions given in ISO 3828 apply.

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 https:// www .electropedia .org/
4 Classification, structures and main dimensions
4.1 Classification

Anchor chain releasers are classified into the types shown in Table 1, based on their structure and

application.
Table 1 — Types and parameters of anchor chain releasers
Nominal size
No. Classification Type code Application
1 Tongue anchor chain releaser A 36 to 152
Grade 3 anchor chains
2 Plug type anchor chain releaser B 50 to 120 of the sizes specified in
ISO 1704
3 Plug type anchor chain releaser C 50 to 120
© ISO 2021 – All rights reserved PROOF/ÉPREUVE 1
---------------------- Page: 5 ----------------------
ISO 24059:2021(E)
4.2 Structure and main dimensions

4.2.1 The structure and main dimensions of Type A anchor chain releasers are shown in Figure 1 and

Table 2.
Key
1 trunk 5 reinforced stiffener 9 cover 13 spring washer 16 securing nut
2 chain hook 6 securing buckle 10 handle 14 tongued pin 17 reinforced bracket
3 liner 7 flange 11 hexagon bolt 15 packing 18 instructions plate
4 threaded shaft 8 gasket 12 hexagon nut
Figure 1 — Structure of Type A anchor chain releasers
Table 2 — Main dimensions of Type A anchor chain releasers
Dimensions in millimetres
Theoretic
Chain
mass
L L L × t L D D D × t D M m n × d
1 2 3 2 4 1 2 3 1 4 1
diameter
36 to 46 735 342 150 × 36 119 375 325 273 × 13 360 Tr60 × 4 110 12 × ø 18 79
48 to 56 835 378 174 × 50 131 440 390 325 × 14 410 Tr70 × 4 134 12 × ø 22 114
58 to 68 99
...

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