ILW-IP2-3852-4m ILW BOX-NOV14


Design No: 3852
Cavity: 15m3 (nominal) with 150mm concrete shielding

Contents: Solids, ILW
Categories: , .

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Package Type

Designed as an Industrial Package in accordance with the IAEA Regulations for the Safe Transport of Radioactive Material.


The 4m ILW BOX has been certified as a non-fissile Industrial Package for the carriage of Low Specific Activity (LSA) or Surface Contaminated Objects (SCO) and is approved as meeting CSC and ISO requirements for ISO Freight Containers.

Alternative certification available on request.


The 4m ILW BOX is large cavity stainless steel containment vessel with internal concrete shielding.

The 4m ILW BOX is designed as a self shielded storage, transport and disposal package for Intermediate Level Waste (ILW) that qualifies as either LSA or SCO.

The 4m ILW BOX is compatible with the Radioactive Waste Management Ltd specification for the
4 metre box waste package, and has been designed to accommodate ILW that is intended for disposal within a geological disposal facility.  It is also designed to meet all current transport and disposal requirements after a period of extended on-site storage.

The 4m ILW BOX can be supplied in a range of shielding wall thicknesses; allowing optimisation against cavity volume for different activity contents.

Illustration of Package Design No 3852 (200mm shielding shown)

Illustration of Package Design No 3852 (200mm shielding shown)


  • Stainless steel outer containment system, all welded construction with stainless steel removable outer transport lid with verifiable seals and bolted closure
  • Inner cast concrete shielded lid providing the equivalence of shielding to that of the container body
  • Filtered vent in lid to allow gas release but prevent particulate release (option to seal the vent for transport)

Approved Contents

As a non-fissile Type IP-2 the 4m ILW Box is designed to carry solid radioactive materials that qualify as either Low Specific Activity (LSA) or Surface Contaminated Objects (SCO).

 Physical Data 


Design No 3852

Shielding Thickness (normal concrete) 100mm 200mm 300mm
Internal Volume (m³) 13.5 11.0 8.1
Internal Dimensions L x W x H (m) 3.68 x 2.11 x 1.74 3.48 x 1.91 x 1.64 3.28 x 1.71 x 1.44
Maximum Weight of Contents (tonnes) 47.5 42.5 35.5
External Height (m) 2.2
External Length (m) 4.013 (2/3 ISO standard)
External Width (m) 2.438 (ISO standard)
Empty Weight (tonne) 4.2 (without any concrete shielding)
External Volume (m3) 21
Maximum Weight of Contents (tonne) 47.5
Maximum Weight including Contents (tonne) 65

 All dimensions and weights are nominal values

(ILW-IP-3852-4m ILW BOX-OCT15)