Classification as excepted package
A package may be classified as an excepted package if it meets one of the following conditions:
(a)It is an empty package having contained radioactive material;
(b)It contains instruments or articles not exceeding the activity limits specified in columns (2) and(3)of Table 2.2.7.2.4.1.2;
(c)It contains articles manufactured of natural uranium, depleted uranium or natural thorium;
(d)It contains radioactive material not exceeding the activity limits specified in column (4) ofTable 2.2.7.2.4.1.2; or
(e)It contains less than 0.1 kg of uranium hexafluoride not exceeding the activity limits specifiedin column (4) of Table 2.2.7.2.4.1.2.
A package containing radioactive material may be classified as an excepted package provided that the radiationlevel at any point on its external surface does not exceed 5 μSv/h.
Table 2.2.7.2.4.1.2: Activity limits for excepted packages
|
Physical state of contents |
Instruments or articles |
Materials Package limits a |
|
|
Item limits a |
Package limits a |
||
|
(1) |
(2) |
(3) |
(4) |
|
Solids |
|||
|
special form |
10-2 A1 |
A1 |
10-3 A1 |
|
other form |
10-2 A2 |
A2 |
10-3 A2 |
|
Liquids |
10-3 A2 |
10-1 A2 |
10-4 A2 |
|
Gases |
|||
|
tritium |
2 x 10-2 A2 |
2 x 10-1 A2 |
2 x 10-2 A2 |
|
special form |
10-3 A1 |
10-2 A1 |
10-3 A1 |
|
other forms |
10-3 A2 |
10-2 A2 |
10-3 A2 |
a For mixtures of radionuclides, see 2.2.7.2.2.4 to 2.2.7.2.2.6.
Radioactive material which is enclosed in or is included as a component part of an instrument or other manufactured article may be classified under UN No. 2911 RADIOACTIVE MATERIAL, EXCEPTED PACKAGE - INSTRUMENTS or ARTICLES provided that:
(a)The radiation level at 10 cm from any point on the external surface of any unpackagedinstrument or article is not greater than 0.1mSv/h;
(b)Each instrument or manufactured article bears the mark "RADIOACTIVE" on its externalsurface except for the following:
(i)radioluminescent time-pieces or devices;
(ii)consumer products that have either received regulatory approval in accordance with1.7.1.4 (e) or do not individually exceed the activity limit for an exempt consignment inTable 2.2.7.2.2.1 (column 5), provided such products are transported in a package thatbears the mark "RADIOACTIVE" on its internal surface in such a manner that awarning of the presence of radioactive material is visible on opening the package; and
(iii)other instruments or articles too small to bear the mark "RADIOACTIVE", providedthat they are transported in a package that bears the mark "RADIOACTIVE" on itsinternal surface in such a manner that a warning of the presence of radioactive materialis visible on opening the package;
(c)The active material is completely enclosed by non-active components (a device performing thesole function of containing radioactive material shall not be considered to be an instrument ormanufactured article); and
(d)The limits specified in columns 2 and 3 of Table 2.2.7.2.4.1.2 are met for each individual itemand each package, respectively.
Radioactive material in forms other than as specified in 2.2.7.2.4.1.3 and with an activity not exceeding the limitsspecified in column4 of Table 2.2.7.2.4.1.2, may be classified under UN No. 2910 RADIOACTIVE MATERIAL, EXCEPTED PACKAGE - LIMITED QUANTITY OF MATERIAL provided that:
(a)The package retains its radioactive contents under routine conditions of carriage; and
(b)The package bears the mark "RADIOACTIVE" on either:
(i)An internal surface in such a manner that a warning of the presence of radioactivematerial is visible on opening the package; or
(ii)The outside of the package, where it is impractical to mark an internal surface.
Uranium hexafluoride not exceeding the limits specified in Column 4 of Table 2.2.7.2.4.1.2 may be classified under UN 3507 URANIUM HEXAFLUORIDE, RADIOACTIVE MATERIAL, EXCEPTED PACKAGE, less than 0.1 kg per package, non-fissile or fissile-excepted provided that:
(a)The mass of uranium hexafluoride in the package is less than 0.1 kg;
(b)The conditions of 2.2.7.2.4.5.2and 2.2.7.2.4.1.4 (a) and (b) are met.
Articles manufactured of natural uranium, depleted uranium or natural thorium and articles in which the sole radioactive material is unirradiated natural uranium, unirradiated depleted uranium or unirradiated natural thorium may be classified under UN No.2909 RADIOACTIVE MATERIAL, EXCEPTED PACKAGE - ARTICLES MANUFACTURED FROM NATURAL URANIUM or DEPLETED URANIUM or NATURAL THORIUM, provided thatthe outer surface of the uranium or thorium is enclosed in an inactive sheath made of metal or some other substantial material.
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.