Inspections for packagings designed to contain 0.1 kg or more of uranium hexafluoride

Every manufactured packaging and its service and structural equipment shall, either jointly or
separately, undergo an inspection initially before being put into service and periodically thereafter.
These inspections shall be performed and certified by agreement with the competent authority.

The initial inspection shall consist of a check of the design characteristics, a structural test, a
leakproofness test, a water capacity test and a check of satisfactory operation of the service
equipment.

The periodic inspections shall consist of a visual examination, a structural test, a leakproofness test
and a check of satisfactory operation of the service equipment. The maximum intervals for periodic
inspections shall be five years. Packagings which have not been inspected within this five-year period
shall be examined before carriage in accordance with a programme approved by the competent
authority. They shall not be refilled before completion of the full programme for periodic inspections.

The check of design characteristics shall demonstrate compliance with the design type specifications
and the manufacturing programme.

For the initial structural test, packagings designed to contain 0.1 kg or more of uranium hexafluoride
shall be tested hydraulically at an internal pressure of at least 1.38 MPa but, when the test pressure is
less than 2.76 MPa, the design shall require multilateral approval. For retesting packagings, any other
equivalent non-destructive testing may be applied subject to multilateral approval.

The leakproofness test shall be performed in accordance with a procedure which is capable of
indicating leakages in the containment system with a sensitivity of 0.1 Pa.l/s (10-6 bar.l/s).

The water capacity of the packagings shall be established with an accuracy of ± 0.25% at a reference
temperature of 15 °C. The volume shall be stated on the plate described in 6.4.21.8.

 
A plate made of non-corroding metal shall be durably attached to every packaging in a readily
accessible place. The method of attaching the plate must not impair the strength of the packaging. 
The following particulars, at least, shall be marked on the plate by stamping or by any other 
equivalent method:
-          Approval number;
 
-          Manufacturer's serial number;
 
-          Maximum working pressure (gauge pressure);
 
-          Test pressure (gauge pressure);
 
-          Contents: uranium hexafluoride;
 
-          Capacity in litres;
 
-          Maximum permissible filling mass of uranium hexafluoride;
 
-          Tare mass;
 
-          Date (month, year) of the initial test and the most recent periodic test;
 
-          Stamp of the expert who performed the tests.
 

 

Approvals of package designs and materials

The approval of designs for packages containing 0.1 kg or more of uranium hexafluoride requires that:
(a) Each design that meets the requirements of 6.4.6.4 shall require multilateral approval;
(b) Each design that meets the requirements of 6.4.6.1 to 6.4.6.3 shall require unilateral approval
by the competent authority of the country of origin of the design, unless multilateral approval is
otherwise required by ADR.

Each Type B(U) and Type C package design shall require unilateral approval, except that:
(a) A package design for fissile material, which is also subject to 6.4.22.4, 6.4.23.7, and 5.1.5.2.1
shall require multilateral approval; and
(b) A Type B(U) package design for low dispersible radioactive material shall require multilateral
approval.

Each Type B(M) package design, including those for fissile material which are also subject to the
requirements of 6.4.22.4, 6.4.23.7, and 5.1.5.2.1 and those for low dispersible radioactive material,
shall require multilateral approval.

Each package design for fissile material which is not excepted by any of the paragraphs 2.2.7.2.3.5 (a)
to (f), 6.4.11.2 and 6.4.11.3 shall require multilateral approval.

The design for special form radioactive material shall require unilateral approval. The design for low
dispersible radioactive material shall require multilateral approval (see also 6.4.23.8).
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