3. A tank container may be used as an industrial package Type 2 (IP-2) provided that it is designed—U.K.
(a)to meet the requirements of Part VI of this Schedule, and
(b)to conform to the standards prescribed in the Chapter 6.8 of ADR, or other requirements at least equivalent to those standards, and is capable of withstanding a test pressure of 265kPa, and
(c)so that any additional shielding which is provided is capable of withstanding the static and dynamic stresses resulting from handling and routine conditions of transport and of preventing a loss of shielding integrity which would result in more than a 20% increase in the radiation level at any external surface of the tank container.