EN ISO 10855-1:2018

SLOVENSKI STANDARD
01-oktober-2018
1DGRPHãþD
SIST EN 12079-1:2007
3ODYDMRþHNRQWHMQHUVNHHQRWHLQ]QMLPLSRYH]DQGYLåQLSULERUGHO1DþUWRYDQMH
L]GHODYDLQR]QDþHYDQMHSODYDMRþLKNRQWHMQHUVNLKHQRW,62
Offshore containers and associated lifting sets - Part 1: Design, manufacture and
marking of offshore containers (ISO 10855-1:2018)
Offshore container - Teil 1: Auslegung, Herstellung und Kennzeichnung (ISO 10855-
1:2018)
Containers offshore - Partie 1: Conception, fabrication et marquage (ISO 10855-1:2018)
Ta slovenski standard je istoveten z: EN ISO 10855-1:2018
ICS:
55.180.10 9HþQDPHQVNLNRQWHMQHUML General purpose containers
75.180.10 Oprema za raziskovanje, Exploratory, drilling and
vrtanje in odkopavanje extraction equipment
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN ISO 10855-1
EUROPEAN STANDARD
NORME EUROPÉENNE
July 2018
EUROPÄISCHE NORM
ICS 75.180.10 Supersedes EN 12079-1:2006
English Version
Offshore containers and associated lifting sets - Part 1:
Design, manufacture and marking of offshore containers
(ISO 10855-1:2018)
Containers offshore et dispositifs de levage associés - Offshore-Container und dazugehörige
Partie 1: Conception, fabrication et marquage des Anschlaggarnituren - Teil 1: Auslegung, Herstellung
containers offshore (ISO 10855-1:2018) und Kennzeichnung (ISO 10855-1:2018)
This European Standard was approved by CEN on 30 April 2018.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN
member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by
translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2018 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 10855-1:2018 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
This document (EN ISO 10855-1:2018) has been prepared by Technical Committee ISO/TC 67
"Materials, equipment and offshore structures for petroleum, petrochemical and natural gas industries"
in collaboration with Technical Committee CEN/TC 12 “Materials, equipment and offshore structures
for petroleum, petrochemical and natural gas industries” the secretariat of which is held by NEN.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by January 2019, and conflicting national standards shall
be withdrawn at the latest by January 2019.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN 12079-1:2006.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta,
Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.
Endorsement notice
The text of ISO 10855-1:2018 has been approved by CEN as EN ISO 10855-1:2018 without any
modification.
INTERNATIONAL ISO
STANDARD 10855-1
First edition
2018-05
Offshore containers and associated
lifting sets —
Part 1:
Design, manufacture and marking of
offshore containers
Containers offshore et dispositifs de levage associés —
Partie 1: Conception, fabrication et marquage des containers offshore
Reference number
ISO 10855-1:2018(E)
©
ISO 2018
ISO 10855-1:2018(E)
© 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
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
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

ISO 10855-1:2018(E)
Contents Page
Foreword .v
Introduction .vi
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 3
4 Symbols . 5
5 Design . 5
5.1 General . 5
5.2 Structural strength . 6
5.2.1 General. 6
5.2.2 Lifting loads . 7
5.2.3 Impact loads . . . 8
5.2.4 Internal forces on container walls . 9
5.2.5 Minimum material thickness . 9
5.3 Welding . 9
5.4 Additional design details . 9
5.4.1 Floor . . 9
5.4.2 Doors and hatches .10
5.4.3 Intermediate cargo decks .10
5.4.4 Driving ramps .10
5.4.5 Internal lashing points .10
5.4.6 Fork lift pockets .10
5.4.7 Top protection .11
5.4.8 Pad eyes .11
5.4.9 ISO-corner fittings .12
5.4.10 Equipment .12
5.4.11 Coating and corrosion protection .12
5.5 Tank containers .13
5.5.1 General.13
5.5.2 Frame .13
5.5.3 Tanks for fluids .13
5.5.4 Impact protection on tank containers for dangerous cargoes .13
5.6 Containers for bulk solids.13
6 Materials .14
6.1 Steel — General .14
6.2 Rolled and extruded steels in offshore container structures .15
6.2.1 General requirements .15
6.2.2 Groups of steels .15
6.2.3 Stainless steel .15
6.2.4 Steel forgings .15
6.2.5 Steel castings in ISO-corner fittings .16
6.3 Aluminium .16
6.4 Non-metallic materials .17
6.5 Material documents .18
7 Type testing.18
7.1 General .18
7.2 Test equipment and calibration.19
7.2.1 Test mass/test load .19
7.2.2 Calibration .19
7.3 Lifting test .19
7.3.1 General.19
7.3.2 All-point lifting .19
ISO 10855-1:2018(E)
7.3.3 Two-point lifting .20
7.3.4 Post-lifting test inspection and examination .20
7.4 Vertical impact test .20
7.5 Other tests .20
8 Production .21
8.1 General .21
8.2 Primary structure .21
8.2.1 General.21
8.2.2 Approved welders .21
8.2.3 Examination of welds.21
8.3 Secondary structure .23
8.4 Production testing .23
8.4.1 Lifting test .23
8.4.2 Weather proofness testing .23
8.5 Failure of production containers .24
9 Marking .24
9.1 Safety marking.24
9.2 Identification markings .24
9.3 Information markings .24
9.4 Other markings .25
10 Container data plate .25
10.1 General .25
10.2 Contents of data plate .25
11 Certificate of conformity .26
11.1 General .26
11.2 Documentation .26
11.3 Contents of the certificate of conformity .27
Annex A (informative) Regulations for offshore containers .28
Bibliography .30
iv © ISO 2018 – All rights reserved

ISO 10855-1:2018(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 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 WTO
principles in the Technical Barriers to Trade (TBT) see the following URL: Foreword - Supplementary
information.
A list of all the parts of ISO 10855 can be found on the ISO website.
ISO 10855-1:2018(E)
Introduction
ISO 10855 (all parts) meets the requirements of IMO MSC/Circ.860 (1998) for the design, construction,
inspection, testing and in-service examination of offshore containers and associated lifting sets which
are handled in open seas.
This document does not specify certification requirements for offshore containers which are covered
by the IMO Circular 860 and SOLAS. IMO MSC/Circ.860 requires certification of offshore containers
“by national administrations or organizations duly authorized by the Administration”, which should
take account of both the calculations and the testing, “taking into account the dynamic lifting and
impact forces that can occur when handling such equipment in open seas”. The certificate of conformity
described in Clause 11 complies with IMO MSC/Circ.860. Further information about certification can be
found in informative Annex A of this document.
ISO 10855 (all parts) does not cover operational use or maintenance, for which there are a number of
industry guidelines which can be referred to. Some are listed in the Bibliography.
Under conditions in which offshore containers are often transported and handled, the 'normal' rate
of wear and tear is high, and damage necessitating repair will occur. However, containers designed,
manufactured and periodically inspected according to ISO 10855 (all parts) should have sufficient
strength to withstand the normal forces encountered in offshore operations, and not suffer complete
failure even if subject to more extreme loads.
vi © ISO 2018 – All rights reserved

INTERNATIONAL STANDARD ISO 10855-1:2018(E)
Offshore containers and associated lifting sets —
Part 1:
Design, manufacture and marking of offshore containers
1 Scope
This document specifies requirements for the design, manufacture and marking of offshore containers
with a maximum gross mass not exceeding 25 000 kg, intended for repeated use to, from and between
offshore installations and ships.
This document specifies only transport-related 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.
ISO 148-1, Metallic materials — Charpy pendulum impact test — Part 1: Test method
ISO 209, Aluminium and aluminium alloys — Chemical composition
ISO 668, Series 1 freight containers — Classification, dimensions and ratings
ISO 1161, Series 1 freight containers — Corner and intermediate fittings — Specifications
ISO 1496-1, Series 1 freight containers — Specification and testing — Part 1: General cargo containers for
general purposes
ISO 1496-3, Series 1 freight containers — Specification and testing — Part 3: Tank containers for liquids,
gases and pressurized dry bulk
ISO 1496-4, Series 1 freight containers — Specification and testing — Part 4: Non-pressurized containers
for dry bulk
ISO 3452-1, Non-destructive testing — Penetrant testing — Part 1: General principles
ISO 5817, Welding — Fusion-welded joints in steel, nickel, titanium and their alloys (beam welding
excluded) — Quality levels for imperfections
ISO 6892-1, Metallic materials — Tensile testing — Part 1: Method of test at room temperature
ISO 7500-1, Metallic materials — Verification of static uniaxial testing machines — Part 1: Tension/
compression testing machines - Verification and calibration of the force-measuring system
ISO 9606-2, Qualification test of welders — Fusion welding — Part 2: Aluminium and aluminium alloys
ISO 9712, Non-destructive testing — Qualification and certification of NDT personnel
ISO 10042, Welding — Arc-welded joints in aluminium and its alloys — Quality levels for imperfections
ISO 10474, Steel and steel products — Inspection documents
ISO 10675-1, Non-destructive testing of welds — Acceptance levels for radiographic testing — Part 1: Steel,
nickel, titanium and their alloys
ISO 10855-1:2018(E)
ISO 10675-2, Non-destructive testing of welds — Acceptance levels for radiographic testing — Part 2:
Aluminium and its alloys
ISO 11666, Non-destructive testing of welds — Ultrasonic testing — Acceptance levels
ISO 15607, Specification and qualification of welding procedures for metallic materials — General rules
ISO 15609-1, Specification and qualification of welding procedures for metallic materials — Welding
procedure specification — Part 1: Arc welding
ISO 15614-1, Specification and qualification of welding procedures for metallic materials — Welding
procedure test — Part 1: Arc and gas welding of steels and arc welding of nickel and nickel alloys
ISO 15614-2, Specification and qualification of welding procedures for metallic materials — Welding
procedure test — Part 2: Arc welding of aluminium and its alloys
ISO 17637, Non-destructive testing of welds — Visual testing of fusion-welded joints
ISO 17638, Non-destructive testing of welds — Magnetic particle testing
ISO 23277, Non-destructive testing of welds — Penetrant testing — Acceptance levels
ISO 23278, Non-destructive testing of welds — Magnetic particle testing — Acceptance levels
ISO 17636-1, Non-destructive testing of welds — Radiographic testing — Part 1: X- and gamma-ray
techniques with film
ISO 17636-2, Non-destructive testing of welds — Radiographic testing — Part 2: X- and gamma-ray
techniques with digital detectors
ISO 17640, Non-destructive testing of welds — Ultrasonic testing — Techniques, testing levels, and
assessment
EN 287-1, Qualification test of welders — Fusion welding — Part 1: Steels
EN 10025-1, Hot rolled products of structural steels — Part 1: General technical delivery conditions
EN 10025-2, Hot rolled products of structural steels — Part 2: Technical delivery conditions for non-alloy
structural steels
EN 10025-3, Hot rolled products of structural steels — Part 3: Technical delivery conditions for normalized/
normalized rolled weldable fine grain structural steels
EN 10025-4, Hot rolled products of structural steels — Part 4: Technical delivery conditions for
thermomechanical rolled weldable fine grain structural steels
EN 10088-2, Stainless steels — Part 2: Technical delivery conditions for sheet/plate and strip of corrosion
resisting steels for general purposes
EN 10164, Steel products with improved deformation properties perpendicular to the surface of the
product — Technical delivery conditions
EN 10210-1, Hot finished structural hollow sections of non-alloy and fine grain structural steels — Part 1:
Technical delivery requirements
EN 10219-1, Cold formed welded structural hollow sections of non-alloy and fine grain steels — Part 1:
Technical delivery requirements
EN 10250-2, Open die steel forgings for general engineering purposes — Part 2: Non-alloy quality and
special steels
EN 10250-3, Open die steel forgings for general engineering purposes — Part 3: Alloy special steels
ASME Boiler and Pressure Vessel Code, Section IX, Welding and Brazing Qualifications, 2015
2 © ISO 2018 – All rights reserved

ISO 10855-1:2018(E)
AWS D1.1Structural Welding Code - Steel
International Maritime Dangerous Goods Code (IMDG Code)
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 Offshore containers
3.1.1
offshore container
portable unit for repeated use in the transport of goods or equipment handled in open seas to, from and
between fixed and/or floating installations and ships
Note 1 to entry: For the purposes of this document the maximum gross mass of offshore containers shall not
exceed 25 000 kg.
Note 2 to entry: The unit incorporates permanently installed equipment for lifting and handling and can include
equipment for filling, emptying, cooling, heating, etc.
Note 3 to entry: Offshore containers are subdivided into three categories (see 3.1.2, 3.1.3 and 3.1.4).
3.1.2
offshore freight container
offshore container built for the transport of goods
EXAMPLE Examples of offshore freight containers are:
— general cargo container: closed container with doors;
— cargo basket: open top container for general or special cargo;
— tank container: container for the transport of dangerous or non-dangerous fluids (other types of tanks, e.g.
processing plants, storage tanks, that are empty during transport, are considered to be service equipment,
and are not covered by this document);
— bulk container: container for the transport of solids in bulk;
— special container: container for the transport of special cargo e.g. garbage containers, equipment;
— boxes, gas cylinder racks.
3.1.3
offshore service container
offshore container built and equipped for a special service task, usually as a temporary installation
EXAMPLE Laboratories, workshops, stores, power plants, control stations.
3.1.4
offshore waste skip
open or closed offshore container used for the storage and removal of waste
Note 1 to entry: These are normally constructed from flat steel plates forming the load bearing sections of the
container, with bracing in the form of steel profiles e.g. channel or hollow section, being fitted horizontally and/
or vertically around sides and ends. In addition to the pad eyes for the lifting set, these containers can have side-
mounted lugs suitable for use with the lifting equipment mounted on a skip lift vehicle.
ISO 10855-1:2018(E)
3.2
permanent equipment
equipment that is permanently attached to the container and which is not cargo
EXAMPLE Lifting sets, refrigeration units, shelves, lashing points, garbage compactors.
3.3 Primary structure
3.3.1
primary structure
load-carrying and supporting frames and load-carrying panels
Note 1 to entry: Primary structure is divided into two subgroups (see 3.3.2 and 3.3.3).
3.3.2
essential/non-redundant primary structure
structural elements which transfer the cargo load to the crane hook, forming the load path from the
payload to the lifting sling
EXAMPLE
— top and bottom side rails;
— top and bottom end rails;
— corner posts;
— pad eyes;
— fork pockets.
Note 1 to entry: Other primary structures can also be considered as essential/non-redundant.
3.3.3
non-essential primary structure
structural elements whose main function is not essential and can be redundant
EXAMPLE Floor plates and protective frame members.
Note 1 to entry: Side and roof panels, including corrugated panels, are not considered to be part of the primary
structure.
3.4
secondary structure
parts which are not considered as load carrying for the purposes of the design calculations, including at
least the following components:
— doors, wall and roof panels;
— panel stiffeners and corrugations;
— structural components used for tank protection only;
— internal lashing points
Note 1 to entry: Not all container walls are corrugated.
3.5
prototype
equipment item, used for type testing, considered to be representative of the product for which
conformity is being assessed
Note 1 to entry: It may be either fabricated especially for type testing or selected at random from a
production series.
4 © ISO 2018 – All rights reserved

ISO 10855-1:2018(E)
3.6
owner
legal owner of the offshore container or the delegated nominee of that body
3.7
lifting set
items of integrated lifting equipment used to connect the offshore container to the lifting appliance
3.8
visual examination
testing performed in accordance with ISO 17637
3.9
non-combustible material
material that does not burn or give off flammable vapours in sufficient quantity for self-ignition when
heated to 750 °C
4 Symbols
R rating, i.e. the maximum gross mass of the container including permanent equipment and its
cargo, in kg, but excluding the lifting set
T tare mass, i.e. the mass of an empty container including any permanent equipment but ex-
cluding cargo and lifting set, in kg
P payload, i.e. the maximum permissible mass of cargo which may be safely transported by
the container, in kg
NOTE 1 P = R − T.
NOTE 2 R, T and P are, by definition in units of mass, kilograms (kg). Where design requirements are based
on the gravitational forces derived from these values, those forces are indicated thus: Rg Tg and Pg, the units of
which are in Newtons (N) or multiples thereof.
S mass of the lifting set, in kg
T design air temperature, i.e. a minimum reference temperature used for the selection of steel
D
grades used in offshore containers and equipment, expressed in degree centigrade (°C)
σ von Mises equivalent stress, expressed in MPa or N/mm
e
R specified minimum yield stress, expressed in MPa or N/mm
e
5 Design
5.1 General
5.1.1 An offshore container shall have sufficient strength to allow loading and unloading from supply
vessels operating offshore in a sea state with significant wave heights of 6 m and to withstand impact
from heavy seas.
NOTE Local impacts, e.g. from hitting other deck cargo or rigid parts of the ship structure, can cause extreme
loads in such conditions.
5.1.2 To prevent the containers from overturning (tipping) on a moving deck, they shall be designed to
withstand tilting at 30° in any direction, without overturning when loaded at their maximum gross mass,
ISO 10855-1:2018(E)
in empty condition or any intermediate condition, and with the centre of gravity considered to be at the
half height of the container. For dedicated purpose containers (e.g. bottle racks and tank containers) the
actual centre of gravity shall be used.
5.1.3 Protruding parts on the outside of the offshore container that can snag on other containers or
structures shall be avoided. Protruding parts (e.g. doors handles, hatch cleats) shall be so placed or so
protected that they do not catch the lifting set.
5.1.4 Stacking fittings and guides and other structures that protrude above the top of the container
frame shall be designed and located to minimize the potential to catch on structures on the ship or on
other deck cargoes during lifting operations, and be designed such that the risk of damage to other
containers or cargoes from these is minimized. They shall also be designed such that damage to the
stacking fittings does not cause damage to the pad eyes.
Particular attention should be given to avoiding the risk of catching. Protrusions such as stacking
guides can catch in openings in the bulwarks of supply vessels.
Such risks can be reduced by suitable designs.
5.1.5 If containers are designed for stacking, the corners or stacking fittings shall be sufficiently raised
above the frame and roof to prevent damage to the lifting set.
NOTE Parts of the permanently attached lifting sets often hang over the side of the top frame.
5.1.6 Containers shall be designed as structural frames (primary structure), with non-load bearing
cladding where necessary (secondary structure). Only the primary structure shall be considered in the
design calculations; however, on certain types of containers, with only a non-stressed cover above the
bracing where the pad eyes are attached, the whole structure may be considered as a primary structure,
and the design calculations may treat such a container as a monocoque construction.
EXAMPLE Waste skips with trapezium shaped sides are examples of containers with only a non-stressed
cover over the bracing where the pad eyes are attached.
5.1.7 T shall not be higher than the (statistically) lowest daily mean temperature for the area where
D
the offshore container is to operate and in no case shall be higher than −20 °C.
For containers with exposed aluminium, the danger of sparks caused by the impact of aluminium
against corroded steel (the thermite reaction) shall be taken into account.
NOTE 1 When preparing the specification for a service container, it is advised that the rating is chosen higher
than the estimated fitted out mass, i.e. to specify a certain payload even if the container is not intended to carry
cargo. This will allow for changes in the amount and mass of equipment fitted in a container during its operational
life, and it can also be useful to be able to carry a certain amount of non-permanent equipment.
NOTE 2 For containers with special features, additional regulatory design requirements can apply; see
informative Annex A for guidance.
5.2 Structural strength
5.2.1 General
The required strength of a container shall be determined by calculation and verified by type tests, as
specified in Clause 7.
6 © ISO 2018 – All rights reserved

ISO 10855-1:2018(E)
5.2.2 Lifting loads
5.2.2.1 Allowable stresses
For design loads defined in 5.2.2.2 and 5.2.2.3, the equivalent stress level, σ , shall not exceed the figure
e
calculated as:
σ = 0,85C
e
where
for steel: C = R
e
for aluminium: Base material C = R
0.2
Heat affected zone C = 0,7 βR
m
where
R is the tensile strength of aluminium;
m
β is 0,8 for ISO AlMg4,5Mn-HAR/AA5083-H32;
β is 0,7 for all other aluminium alloys and tempers.
Aluminium alloys shall be according to Table 4 in 6.3.
5.2.2.2 Lifting with lifting set
The design force on the primary structure shall be calculated as 2,5 Rg where g is the acceleration due
to gravity (in m/s , i.e. 9,806 65).
The internal loading shall be taken as (2,5 R − T) g evenly distributed over the container floor. For tank
containers, the actual distribution of the tare mass shall be used for the calculations.
Pad eyes shall be designed for a total vertical force of 3 Rg.
The force shall be considered to be evenly distributed between (n − 1) pad eyes. For calculation purposes
n shall not exceed 4 or be less than 2.
To determine the resulting sling force on the pad eyes, the sling angle shall be taken into account, so
that the resulting sling force on each pad eye is calculated as follows:
3Rg
F =
()n−1 cosϑ
where
F is the resulting sling force, in Newtons (N);
n is the actual number of pad eyes (for calculation purposes n shall not exceed 4 and shall be not
less than 2);
is the angle between a sling leg and the vertical, in degrees and shall be assumed to be 45 °
ϑ
unless otherwise specified.
For containers with only one pad eye, that pad eye shall be designed for a total vertical force of 5 Rg.
Containers without a roof can have insufficient strength and stiffness to pass the two point lifting
test (7.3.3). In order to avoid building prototypes that will not pass the test, the ability of an open top
ISO 10855-1:2018(E)
container to withstand the load occurring in the 2-point lifting test should be checked by a suitable
calculation method. In these calculations, the nominal yield stress of the material should not be
exceeded. These calculations do not replace the prototype testing.
5.2.2.3 Lifting with forklift truck
The weight of the lifting set shall be taken into account when calculating the strength of the fork pockets.
The design force on the primary structure shall be calculated as 1,6 (R+S) g. The internal loading shall
be taken as [1,6 (R+S)−T] g evenly distributed over the container floor.
Where fork pockets are intended only for handling of the empty container, the design loading shall be
taken as 1,6 (T+S) g.
5.2.3 Impact loads
5.2.3.1 General
NOTE 1 Impact loads are dynamic loads of very short duration.
For most appli
...