ISO 13795:2020

FINAL
INTERNATIONAL ISO/FDIS
DRAFT
STANDARD 13795
ISO/TC 8/SC 4
Ships and marine technology — Ship's
Secretariat: SAC
mooring and towing fittings — Welded
Voting begins on:
2020­05­27 steel bollards for sea-going vessels
Voting terminates on:
Navires et technologie maritime — Corps-morts et ferrures de
2020­07­22
remorquage de navires — Bittes d'amarrage en acier soudées pour
navires de haute mer
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 13795:2020(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 2020

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ISO/FDIS 13795:2020(E)

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© ISO 2020
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ii © ISO 2020 – All rights reserved

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ISO/FDIS 13795:2020(E)

Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Classification . 1
4.1 Type . 1
4.2 Nominal sizes . 1
5 Dimensions . 2
6 Materials . 2
7 Construction . 2
8 Manufacturing and inspection . 2
9 Marking . 2
Annex A (normative) Basis for strength assessment of welded steel bollards .10
Bibliography .13
© ISO 2020 – All rights reserved iii

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ISO/FDIS 13795:2020(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 non­governmental, 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 Technical Committee ISO/TC 8, Ships and marine technology, Subcommittee
SC 4, Outfitting and deck machinery.
This second edition cancels and replaces the first edition (ISO 13795:2012), which has been technically
revised.
The main changes compared to the previous edition are as follows:
— technical guidelines have been added in 7.4;
— the definition of SWL (3.1) has been reworded;
— the mark numbers and extension numbers in Figures 1 and 2 have been amended;
— the values in Table 1 and Table 2 have been amended;
— the text in Clause A.5 has been amended.
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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ISO/FDIS 13795:2020(E)

Introduction
A bollard is a type of ship’s mooring and towing fitting installed on board to belay the mooring and
towing rope.
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FINAL DRAFT INTERNATIONAL STANDARD ISO/FDIS 13795:2020(E)
Ships and marine technology — Ship's mooring and towing
fittings — Welded steel bollards for sea-going vessels
1 Scope
This document specifies the types, nominal sizes, dimensions and materials, as well as construction,
manufacturing and marking requirements, for welded steel bollards suitable for installation on sea-
going vessels to meet normal mooring and towing requirements.
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.
IMO Circular MSC/Circ.1175, Guidance on shipboard towing and mooring equipment
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:
— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at http:// www .electropedia .org/
3.1
safe working load
SWL
safe load limit (maximum permissible load) of the fittings used for mooring
3.2
TOW
safe load limit (maximum permissible load) of the used for normal and other towing operations
4 Classification
4.1 Type
Depending on the construction, welded steel bollards shall be classified as belonging to one of the
following two types:
a) Type A: with compact base plate;
b) Type B: with wide base plate.
4.2 Nominal sizes
The nominal sizes, D , of bollards are denoted by reference to the outside diameter of the post, in
n
millimetres, in terms of the nearest number drawn from a basic series of preferred numbers. For the
bollards having the same post diameter, the letter of the alphabet, i.e. A or B, is followed by the nominal
size for the different safe working loads (SWL).
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ISO/FDIS 13795:2020(E)

The nominal sizes are: 150, 200, 250A, 250B, 300A, 300B, 350A, 350B, 400A, 400B, 450A, 450B, 500A,
500B, 550A, 550B and 600.
5 Dimensions
The bollards shall have dimensions and particulars in accordance with Tables 1, 2, 3 and 4, and
Figures 1 and 2.
6 Materials
The following materials shall be used for manufacturing the components of the bollards:
2
— base plates: weldable steel plates having a yield point of not less than 235 N/mm ;
2
— posts: weldable steel plates having a yield point of not less than 235 N/mm or equivalent steel tubes.
7 Construction
7.1 The posts of the bollards shall be constructed from steel pipes or formed from plate.
7.2 Fins shall be installed to keep the ropes as low as possible so as to reduce the loads to the bollard
posts from the mooring/towing ropes.
7.3 An eye plate for tying the stopping-off rope or chain shall be provided.
7.4 The selection of ship’s mooring fittings and mooring lines should take into account the diameter, D,
of surfaces of mooring fittings that are in contact with the mooring line diameter, d, (D/d ratio) to reduce
or mitigate bend ross of str
...