An empty packaging which had previously contained radioactive material may be classified under UN No.2908 RADIOACTIVE MATERIAL, EXCEPTED PACKAGE - EMPTY PACKAGING, provided that:
(a)It is in a well-maintained condition and securely closed;
(b)Theouter surface of any uranium or thorium in its structure is covered with an inactive sheathmade of metal or some other substantial material;
(c)The level of internal non-fixed contamination, when averaged over any 300cm2, does notexceed:
(i)400 Bq/cm2for beta and gamma emitters and low toxicity alpha emitters; and
(ii)40 Bq/cm2for all other alpha emitters; and
(d)Any labels which may have been displayed on it in conformity with 5.2.2.1.11.1 are no longervisible.
Classification as Low specific activity (LSA) material
Radioactive material may only be classified as LSA material if the definition of LSA in 2.2.7.1.3 and the conditions of 2.2.7.2.3.1, 4.1.9.2 and 7.5.11 CV33 (2) are met.
Classification as Surface contaminated object (SCO)
Radioactive material may be classified as SCO if the definition of SCO in 2.2.7.1.3 and the conditions of 2.2.7.2.3.2, 4.1.9.2 and 7.5.11 CV33(2) are met.
Classification as Type A package
Packages containing radioactive material maybe classified as Type A packages provided that the following conditions are met:
Type A packages shall not contain activities greater than either of the following:
(a)For special form radioactive material - A1;
(b)For all other radioactive material - A2.
For mixtures of radionuclides whose identities and respective activities are known, the following condition shall apply to the radioactive contents of a Type A package:
where B(i) is the activity of radionuclide i as special form radioactive material;
A1(i) is the A1value for radionuclidei;
C(j) is the activity of radionuclide j as other than special form radioactive material;
A2(j) is the A2value for radionuclide j.
Classification of uranium hexafluoride
Uranium hexafluoride shall only be assigned to:
(a)UN No. 2977, RADIOACTIVE MATERIAL, URANIUM HEXAFLUORIDE, FISSILE;
(b)UN No. 2978, RADIOACTIVE MATERIAL, URANIUM HEXAFLUORIDE, non-fissile orfissile-excepted; or
(c)UN No. 3507, URANIUM HEXAFLUORIDE, RADIOACTIVE MATERIAL, EXCEPTEDPACKAGE less than 0.1 kg per package, non-fissile or fissile-excepted.
The contents of a package containing uranium hexafluoride shall comply with the following requirements:
(a)For UN Nos. 2977 and 2978, the mass of uranium hexafluoride shall not be different from thatallowed for the package design, and for UN No. 3507, the mass of uranium hexafluoride shallbe less than 0.1 kg;
(b)The mass of uranium hexafluoride shall not be greater than a value that would lead to an ullagesmaller than 5% at the maximum temperature of the package as specified for the plant systemswhere the package shall be used; and
(c)The uranium hexafluoride shall be in solid form and the internal pressure shall not be aboveatmospheric pressure when presented for carriage.
Classification as Type B(U), Type B(M) or Type C packages
Packages not otherwise classified in 2.2.7.2.4 (2.2.7.2.4.1 to 2.2.7.2.4.5) shall be classified in accordance with the competent authority certificateof approvalfor the package issued by the country of origin of design.
The contents of a Type B(U), Type B(M) or Type C package shall be as specified in the certificate of approval.
Special arrangements
Radioactive material shall be classified as transported under special arrangement when it is intended to be carried in accordance with 1.7.4.
Class 8 Corrosive substances
Definition, general provisions and criteria
Corrosive substances are substances which, by chemical action, will cause irreversibledamage to the skin, or, in the case of leakage, will materially damage, or even destroy, other goods or the means of transport. The heading of this class also covers other substances which form a corrosive liquid only in the presence of water, or which produce corrosive vapour or mist in the presence of natural moisture of the air.
For substances and mixtures that are corrosive to skin, general classification provisions are provided in 2.2.8.1.4. Skin corrosion refers to the production of irreversible damage to the skin, namely, visible necrosis through the epidermis and into the dermis occurring after exposure to a substance or mixture.