10’ OFFSHORE TECHNICAL SPEC

BULLBOX

OFFSHORE CARGO CONTAINER

10’OFFSHORE - 10’ × 8’ × 8´6”

MODELO NO: BULLBOX - 10’ × 8’ ×

8´6” STANDARD
DATE OF ISSUE: October,2017

Contenedores y Embalajes Normalizados S.A.

P.I. Silvota, Peñasanta 12, Llanera. 33192, Asturias- Spain
T +34 985 265 095 bullbox@bullbox.com
www.bullbox.com
00 - INDEX

SECTION / TITLE / PAGE

1. General ...................................................................... 3
2. Standards and regulations .................................... 3
3. Handling .................................................................... 3
4. Dimensions and ratings .......................................... 4
5. Properties of Steel Material .................................. 5
6. Construction .............................................................. 6
7. Preservation ........................................................... 11
8. Markings and data plate ...................................... 12
9. Testing and inspection ........................................ 13
10. Warranty ............................................................... 15

OFFSHORE CARGO CONTAINER 10’ OFFSHORE - 10’ × 8’ × 8’6”

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01 - GENERAL

1. General

This specification for offshore containers covers design, manufacture, materials, testing and
marking.

The container is built in accordance with the standard of DNV2.7-1: 2006 and EN 12079:
2006.

This Specification is for the purposes of information only and shall not be copied without
permission of BULLBOX Containers Ltd.

2. Standards and regulation

The offshore container is designed, manufactured and tested in accordance with

requirements of the following latest editions standards and regulations.

DNV2.7-1 - Offshore containers

EN 12079 - Offshore containers - Design, construction, testing, inspection and marking.

ISO 1161 - Specification of corner fittings for series 1 freight containers.

3. Handling

The offshore container is constructed to be capable of being handled and operated without
any damage under the following conditions.

a. They are lifted by crane hook attached to top link of 4 legs lifting set through pad eyes at a
maximal 45°from the vertical.

b. They are lifted by fork lift arms through fork lift pockets fitted in the bottom structure on
container, whenever being empty or fully loaded.

c. They are stacked only onshore or on offshore installations with 2 high at most. Not to be
stacked during transport on ships.

d. They are not lifted by using ISO corner fittings.

OFFSHORE CARGO CONTAINER 10’ OFFSHORE - 10’ × 8’ × 8’6”

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04 - DIMENSIONS AND RATINGS

4. Dimensions and ratings

External

Length 2,991 + 0 mm
-5 mm
Width 2,438 + 0 mm
-5 mm
Height 2,591 + 0 mm
-5 mm

Internal

Length 2,825 mm
Width 2,348 mm
Height 2,260 mm

Door opening dimensions

Width 2,336 mm
Height 2,224 mm

Internal cubic capacity (nominal)

15 cu.m

Ratings

Max. Gross Weight (R) 10,000 kgs

Tare Weight (design) (T) 2,010 kgs
Max. Payload (P) 7,990 kgs

Lifting leg angle from the vertical 45°maximum.

OFFSHORE CARGO CONTAINER 10’ OFFSHORE - 10’ × 8’ × 8’6”

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05 - PROPERTIES OF STEEL MATERIAL

5. Properties of Steel material

The properties of steel material used in construction are as follows.

Material Y.P Min (Mpa) T.S.Min (Mpa) E.Min. %

JIS SPA-H 345 480 22
JIS SCW480 275 480 20
JIS S25C 275 450 24
GB Q345E 345 470 22
GB E36 355 490 21
JIS SUS304 205 520 40

* Y.P. : Yield point

T.S. : Tensile Strength
E.: Elongation

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06 - CONSTRUCTION

6. Construction

Base structure
The base frame will be composed of two (2) bottom side rails, a number of crossmembers and
a pair of fork pockets, which are welded together as a sub-assembly.

Bottom side rails:

Material : JIS SPA-H
Gauge : 6 mm
Geometry : 150x80x80mm, pressed "C" section.

Crossmembers:
Material : JIS SPA-H
Gauge : 145x50x50x4.5mm channel
Geometry : Pressed "C" section.

Fork Pocket:
One pair of fork pocket will be fitted in the bottom structure for loaded handling. Each fork
pocket is constructed with two adjacent crossmembers, a top plate and 3 bottom plates. 3
pieces of channel stiffeners and 2 protectors will be welded on top and both ends of each fork
pocket .

Top plate: 4.0 mm Thk.

Bottom plate: 6.0 mm Thk. Depth : 300 mm
Stiffener channel: 100 x 45 x 45 x 4.5
Protector: 6.0 mm Thk.

6. 2 Floor

Material : JIS SPA-H.

Gauge : 4.0 mm thickness,
Assembly : The floor plates are welded to the top of the base frame.

6. 3 Front end

The front end will be composed of corrugated end wall and front end frame, which are welded
together as a sub-assembly. Front end frame is consists of top and bottom rails, two corner
posts and two bottom corner fittings.

Corner post:
Material : JIS SPA-H
Geometry : 6mm thick section steel.
Assembly : Fully penetration welded to the corner castings at bottom end.

Top rail:
The front top rail is constructed of one 100x100x4.0mm square tube and a 3.2mm top plate.
Material : JIS SPA-H

Bottom rail:
Material : JIS SPA-H - Bottom rail & gusset.
Gauge : Bottom rail - 150x120x6.0mm “C” shaped pressing.
Gusset - 6.0mmAssembly : Fully welded on both side to each corner posts.

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06 - CONSTRUCTION

End panel:
Material : JIS SPA-H
Gauge : 3.0mm
Geometry : 45.6mm depth, 110mm exterior flat, 18mm slop and 104mm interior flat.
Assembly : Panels are butt welded together and fully welded to front rails and corner posts.

6. 4 Rear end

Rear end is composed of rear end frame which consists of one door sill, two corner posts, one
rear header with header plate and four corner fittings, which are welded together as a sub-
assembly, and Door Systems with locking devices.

Corner post:
Material : JIS SPA-H
Gauge :
Outer – 6.0 mm thick pressing.
Inner –118 x 42 x 6 mm “C” shaped pressing.

Geometry : Rectangular box section composed of outer and inner.Assembly: Fully penetration
welded to the corner castings at both ends.

Door sill:
Material : JIS SPA-H
Geometry : Bottom rail - 150x119x6.0mm “C” shaped pressing section with a slop upper face.
Gusset - 6.0mm.

Features : The door sill is built of a special channel section Steel pressing with internal gussets
as stiffeners at the back of each cam keeper.

Door Header:
The door header is constructed from a lower part of a " U " shaped steel pressing with internal
stiffener ribs at the location of the back of cam keeper and an upper part of steel rear header
plate, they are welded together to form a box section to provide a high rigidity.

Material : SPA-H Header

lower : 4.0 mm thick
Upper plate : 4.0 mm thick
Gusset : 6.0 mm thick

6. 5 Door system

Doors will consist of two door leaves, each leaf with two (2) locking devices, four hinges and
pins, seal gaskets, protection hollow sections and door holders. The doors will be installed by
hinge pins to the rear end frame and capable of swinging about 270 degrees.

Door Leaves:
Each door leaf consists of door panels, steel door frame which consists of horizontal and
vertical members. They are welded together to form the rectangular door leaf. The door are so
arranged that the left leaf can not be opened without displacement of the right leaf. A set of
protection hollow sections will be fitted on the door frame to protect the locking system
against damages from impact load.

OFFSHORE CARGO CONTAINER 10’ OFFSHORE - 10’ × 8’ × 8’6”

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06 - CONSTRUCTION

1) Door panel : corrugation plate

Depth : 44 mm
Inner face : 70 mm
Slope : 32 mm

2)Panel thickness :
Door frame :2.0 mm
a) Horizontal door member: 150 x 50 x 4.0 mm, channel section,
b) Vertical door member:100x50x4.0 mm RHS

3) Protection construction : 59x37x3.0 mm RHS

Hinges and Pins:

Four forged hinges, providing with bushed hole, are welded to each door leaf. Each door is
installed by hinge pins, washers and bushings.
Washer - Material : Stainless steel .
Location : Under the bottom of hinge.
Bushing – Bronze.
Pin - Material : Stainless steel .

Locking Devices:
Two locking bars are of steel tube with handles, anti-racking rings and cam ends, and fixed to
each door leaf with bolts and nuts, by top and bottom bearing brackets and bar guide
brackets. The bars are suspended in bearing brackets with bush of self-lubricating synthetic
material.

The EPDM shim will be placed over the holes on the door for fastener. Cam keepers are
welded to the door header and sill.
Locking bars treatment : Hot-Dip galvanized.

Door Holder and Receptacle:

A door holder, made of steel bar, is fixed to the door frame. The receptacle is welded to
corresponding bottom side rail to remain the door at the open position.

Seal Gaskets:
The door seal gaskets ( black colour ) are of E.P.D.M rubber assembled by rivets,using strip
retainers and adhesive sealant on the back.

Gasket's shape : "J - C" Type

Retainer : Stainless steel
Rivet : Stainless steel

6. 6 Side

Top side rail

Material : JIS SPA-H
Geometry : Square tube.
Size : 100x100x4.0mm

Panel:
Material : JIS SPA-H
Gauge : 3.0mm
Geometry : 36mm depth, 72mm exterior flat, 68mm slop and 70mm interior flat.

Assembly : Panels are butt welded together and fully welded to exterior of
container frame, stitch welded to interior of corner posts.

OFFSHORE CARGO CONTAINER 10’ OFFSHORE - 10’ × 8’ × 8’6”

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06 - CONSTRUCTION

6. 7 Roof

Material : JIS SPA-H

Gauge : 3.0 mm
Geometry : Panel
Assembly : Continuous welding.
Features : Roof panel will be cylindrically cambered with approx. 5mm at center to ensure
complete water drainage.

Roof stiffener rail:

Two pieces of stiffener rails are fitted under the transverse way of the roof panels to give a
additional reinforcement.
Material : JIS SPA-H
Geometry : Square tube.
Size: 59x37x3.0mm

6. 8 Corner fitting

Material : SCW 480

Geometry : ISO 1161 – 1984

6. 9 Internal Lashing point

Twelve (12) lashing rings are welded onto the top and bottom side rails, which are of forged
“D” shape and hinged type. Each ring is capable to withstand a force of 1,000 kgf.

6. 10 Rear Frame Mesh Lashing point

Three(3) lashing bars are welded onto each rear corner post. One lashing ring is welded onto
the center position of the door header. Each lashing bar or ring is capable to withstand a force
of 1,000 kgf.

6. 11 Pad eye

Material : E36
Gauge : 18 mm
Geometry : 2 pcs of round shape pad eyes joint together. Bolt hole diameter is 29mm.

OFFSHORE CARGO CONTAINER 10’ OFFSHORE - 10’ × 8’ × 8’6”

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06 - CONSTRUCTION

6. 12 Lifting set

A lifting set with a fore runner is attached to the pad eyes on four corners by shackles. The
wire rope slings and shackles are in accordance with EN 13889/EN 12079.Minimum Working
Load Limit of the lifting set, WLLmin=15.01Tons.

4 -leg wire rope sling angle from vertical : maximum 45°,Lifting set slings and components
should include:
Wire rope terminations shall be ferrule secured eyes with thimbles:

Wire rope shall be of type 6x36 or 6x19 and fibre cored.

Fore runner wire rope is 40mm in diameter and 1200mm in length with a minimum breaking
force 835KN.
Four (4) leg sling wire rope is 28mm in diameter and 2550mm in length with a minimum
breaking force 386KN.

Shackles shall be of bolt type with hexagon nut and split pin:

WLL = 8.5 Tonnes, Pin diameter 28mm,

Inside width at pin 43mm.
Bow (omega) type shackle is used.

Master link:
WLL= 22.3Tonnes.
Link diameter : Φ38mm.
Internal dimension : 275 x 150mm.

Quad assembly:
Quad assembly is composed of one master link and two intermediate links. WLL of quad
assembly is 22.3 Tonnes.

6. 13 Sealing

Chloroprene sealant is to be caulked at inside unwelded seams and visible

seam of floor board periphery.

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07 - PRESERVATION

7. Preservation

7. 1 Surface preparation of the steel work

Prior to assembly
1) Each part will be completely inspected to remove any weld spatter, weld slag or
contamination.

2) All steel components, prior to fabricating, will be shot blasted to Swedish .Standard SA 2
1/2 to remove rust, mill scale and painted zinc primer approximately 10 microns.

After assembly
1) All welding slags, spatters and other foreign matters are removed.

2) Welded area on the surfaces are shot blasted.

3) Remove of all loose grit and dust will be accomplished with clean compressed air before
painting.

7. 2 Painting

The paint to be applied within two hours after shot blasting is as follows.

Outside
Epoxy zinc primer Barrier 77 CN 50μm
Epoxy paint Penguard express 100μm
Polyurethane topcoat(RALXXX) Hardtop xp 50μm

Inside
Epoxy zinc primer Barrier 77 CN 50μm
Epoxy paint Penguard express 70μm
The paint supplier is Jotun Paint.

OFFSHORE CARGO CONTAINER 10’ OFFSHORE - 10’ × 8’ × 8’6”

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08 - MARKINGS AND DATA PLATE

8. Markings and Data Plate

8.1 Safety marking

The container shall be marked with a 100mm wide painting band of yellow color
(RAL 1021) round the roof perimeter.

8.2. Identification markings

Owner’s code and serial number issued by the owner shall be displayed on all sides and
roof of the container. These code and number is to be white color and selfadhesive kiss-cut
film.

8.3 Information markings

A rating decal is to be attached to the door panel, which is white color and selfadhesive
kiss-cut film. It shall include maximum gross mass,tare mass and payload. A matt black board
decal is to be fitted to the door panel.

8.4 Other markings

Society emblem and manufacturer’s web site decal will be attached to the door.

8.5 Data and inspection plate

Data and inspection plate made of stainless steel shall be fitted to the door by stainless
steel rivet.

8.6 Welded identification

Welded the manufacturer's serial number in 50mm high digits on the outside surface of
the rear bottom rail.

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09 - TESTING AND INSPECTION

9. Testing and Ispection

9.1 Type testingLifting tests

The container shall be lifted by a lifting set with an angle to the vertical equal to the design
angle 45 degree. The container shall be carefully lifted in such a way that no significant
acceleration force occur. It shall be held for 5 minutes before measurements are taken.

Four (4)-point lifting

The container shall be loaded to a total gross mass of 2.5R and lifted clear of the ground,
using all the pad eyes. No deflections during testing shall be greater tan 1/300 of the span of
the primary construction member. The container shall show no permanent deformation or
other damage after testing.

Two-point lifting
The container shall be loaded to a total mass of 1.5R and lifted clear of the ground, using only
two pad eyes, situated diagonally opposite each other. After the test there shall be no
permanent deformation.

Drop test
The container shall be dropped on to a floor of concrete or other rigid structure. This floor
may be covered with a sheathing of wooden planks with a thickness not exceeding 50mm (2
inches).

In the case, the container shall be inclined so that each of the bottom side and end rails
connected to the lowest corner forms an angle of not less than 5°with the floor.However, the
greatest height difference between the highest and lowest point of the underside of the
container corners need not be more tan 400mm. The impacting corner shall be the one
expected to have the lowest rigidity. For this containers this will normally be at the door end.

An internal load equal to the payload (P) shall be safely secured and the container shall be
inclined as describe above. The container shall be suspended from a quick release hook.
When released, the container shall drop freely
for at least 50 mm to give it a speed at initial impact of at least 1 m/s.

No significant permanent damage shall occur. Cracks in welds and minor deformation may be
repaired.

9.2 Production Test

Lifting test
During production, a four-point lifting test as described in 9.1.1.1 shall be carried out. The
number of containers to be tested shall be agreed in advance and chosen at random.

Weatherproofness testing
For 10% of the containers in a production series, the weatherproofness test shall be carried
out in accordance with the rules specified in ISO1496-1 about weatherproofness.For the
remaining containers, the water test may be replaced by a simple light test.

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09 - TESTING AND INSPECTION

9.3 Inspection

All the materials and components will be inspected by Quality Control Dept. to make sure that
the most suitable and qualified components being used for the containers and to meet this
specification.

Every containers will be manufactured under effective Quality Control procedures, and every
production line of the factory will be inspected and controlled by the Quality Control Dept. to
meet this specification.

NDE of structural welds

100% of total length of welds between essential primary structure, magnetic particle
examination shall be performed.
20% of total length of welds between essential and non-essential primary structure,
magnetic particle examination shall be performed.
Dye penetrant examination shall be used where magnetic particle examination is not
possible.

All welds shall be visually inspected.

Essential primary structure shall includes:
— top and bottom side rails
— top and bottom end rails
— corner posts
— corner castings
— pad eyes

Non-essential primary structure shall includes:

— floor plates
— reinforcement plates

NDE acceptance criteria:

For magnetic particle examination, EN 1291 to acceptance level 1. For dye penetrant
examination, EN 1289 to acceptance level 1.

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10 - WARRANTY

10. Warranty

The guarantee period will commence at the day of delivery.

10.1 Paint warranty

The paint system applied on the container surface is guaranteed against corrosión and/or
paint failure for a period of three (3) years and is based on "RE 3" of the "European degrees of
rusting standards."The warranty is applied to all kinds of faults of failures affecting more than
10% of the painted surface and partial or total repainting is assured for the container(s) at
manufacturer's expense. Normal wear/tear, or corrosion caused by acid, alkaline solution or
result from damage by abrasion impact or accident are excluded.

10.2 Other warranty

All containers shall be guaranteed against any defects or omissions in construction, poor
workmanship, or defective materials for a period of two ( 2 ) years. Any damages caused by
mis-handling, mis-securing, mis-loading, impact and other natures of accident are excluded.
The self-adhesive film decal shall be guaranteed five (5) years.

OFFSHORE CARGO CONTAINER 10’ OFFSHORE - 10’ × 8’ × 8’6”

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 Contenedores y Embalajes Normalizados S.A.
P.I. Silvota, Peñasanta 12, Llanera. 33192, Asturias- Spain
T +34 985 265 095 bullbox@bullbox.com
www.bullbox.com