20. A package to be used for the transport of radioactive material or nuclear material having dangerous properties, in addition to radioactive and fissile properties, shall comply with the following additional requirements:
(a) The package design shall take into account all the relevant dangerous properties, including explosiveness, flammability, pyrophoricity, toxicity and corrosiveness; and
(b) The package design shall take into account the formation of other dangerous substances that may result from the reaction between the radioactive content of the package and the environment in the event of any damage to the containment system.