A shielding will be used so that the dose rate at the surface of the container does not exceed 2 5 μSv/hr. A container with such a standard of shielding being far too heavy, a compromise between the degree of shielding and the container‟s weight will be reached in order not to exceed the following dose rates:
• At 1 meter from the source position: 200 μSv/hr (mean) & 1000 μSv/hr
(max).
• At 5 meter from the container: 20 μSv/hr (mean) & 100 μSv/hr (max).