Tests for Type C packages

Specimens shall be subjected to the effects of each of the following test sequences in the orders
(a) The tests specified in (a), (c), and; and
(b) The test specified in
Separate specimens are allowed to be used for each of the sequences (a) and (b).

Puncture/tearing test: The specimen shall be subjected to the damaging effects of a vertical solid probe
made of mild steel. The orientation of the package specimen and the impact point on the package
surface shall be such as to cause maximum damage at the conclusion of the test sequence specified
in (a).
(a)   The specimen, representing a package having a mass less than 250 kg, shall be placed on a    
target and subjected to a probe having a mass of 250 kg falling from a height of 3 m above the 
intended impact point. For this test the probe shall be a 20 cm diameter cylindrical bar with the 
striking end forming a frustum of a right circular cone with the following dimensions: 30 cm height 
and 2.5 cm in diameter at the top with its edge rounded off to a radius of not more than 6 mm. The 
target on which the specimen is placed shall be as specified in 6.4.14;
(b)  For packages having a mass of 250 kg or more, the base of the probe shall be placed on a 
target and the specimen dropped onto the probe. The height of the drop, measured from the point of 
impact with the specimen to the upper surface of the probe shall be 3 m. For this test the probe 
shall have the same properties and dimensions as specified in (a) above, except that the length and 
mass of the probe shall be such as to incur maximum damage to the specimen. The target on which the 
base of the probe is placed shall be as specified in 6.4.14.


Enhanced thermal test: The conditions for this test shall be as specified in, except that the
exposure to the thermal environment shall be for a period of 60 minutes.

Impact test: The specimen shall be subject to an impact on a target at a velocity of not less
than 90 m/s, at such an orientation as to suffer maximum damage. The target shall be as defined in
6.4.14, except that the target surface may be at any orientation as long as the surface is normal to the
specimen path.

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

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

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

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