Where:
B(i) is the activity of radionuclide i in special form; and
A1 (i) is the A1 value for radionuclide i.
Where:
C(j) is the activity of radionuclide j in normal form; and
A2(j) is the A2 value for radionuclide j.
Where:
The symbols are defined as in paragraphs (d)(1) and (d)(2) of this section.
Where:
f(i) is the fraction of activity for radionuclide i in the mixture; and
A1(i) is the appropriate A1 value for radionuclide i.
Where:
f(i) is the fraction of activity for normal form radionuclide i in the mixture; and
A2(i) is the appropriate A2 value for radionuclide i.
Where:
f(i) is the fraction of activity concentration of nuclide i in the mixture; and [A](i) is the activity concentration for exempt material containing nuclide i.
Where:
f(i) is the fraction of activity of nuclide i in the mixture; and
A(i) is the activity limit for exempt consignments for nuclide i.
Where:
n + m represents all the radionuclides in the mixture;
m are the radionuclides that do not need to be considered;
a(i) is the activity of radionuclide i in the mixture; and
A(i) is the A1 or A2 value, as appropriate for radionuclide i.
Table 7-General Values for A1 and A2
Radioactive contents | A1 | A2 | ||
(TBq) | (Ci) | (TBq) | (Ci) | |
1. Only beta or gamma emitting nuclides are known to be present | 1 * 10-1 | 2.7 * 10° | 2 * 10-2 | 5.4 * 10-1 |
2. Alpha emitting nuclides, but no beta, gamma, or neutron emitters, are known to be present1 | 2 * 10-1 | 5.4 * 100 | 9 * 10-5 | 2.4 * 10-3 |
3. Neutron emitting nuclides are known to be present or no relevant data are available | 1 * 10-3 | 2.7 * 10-2 | 9 * 10-5 | 2.4 * 10-3 |
1 If beta or gamma emitting nuclides are also known to be present, the A1 value of 0.1 TBq (2.7 Ci) should be used.
Table 8-General Exemption Values
Radioactive contents | Activity concentration for exempt material | Activity limits for exempt consignments | ||
(Bq/g) | (Ci/g) | (Bq) | (Ci) | |
1. Only beta or gamma emitting nuclides are known to be present | 1 * 101 | 2.7 * 10-10 | 1 * 104 | 2.7 * 10-7 |
2. Alpha emitting nuclides, but no neutron emitters, are known to be present | 1 * 10-1 | 2.7 * 10-12 | 1 * 103 | 2.7 * 10-8 |
3. Neutron emitting nuclides are known to be present or no relevant data are available | 1 * 10-1 | 2.7 * 10-12 | 1 * 103 | 2.7 * 10-8 |
49 C.F.R. §173.433