the design for low dispersible radioactive material shall require multilateral approval.low dispersible radioactive material shall be such that the total amount of this radioactive material in a package, taking into account the provisions of 6.4.8.14,shall meet the following requirements:
(a)the radiation level at 3 m from the unshielded radioactive material does not exceed 10msv/h;
(b)if subjected to the tests specified in 6.4.20.3 and 6.4.20.4, the airborne release in gaseous andparticulate forms of up to 100 μm aerodynamic equivalent diameter would not exceed 100 a2.a separate specimen may be used for each test; and
(c)if subjected to the test specified in 2.2.7.2.3.1.4 the activity in the water would not exceed100 a2. inthe application of this test, the damaging effects of the tests specified in (b) aboveshall be taken into account.