Paragraph 4 Type A packages

(a)

A Type A package containing a single radionuclide shall not contain activities greater than the following:

(i)

for special form radioactive material: A₁; or

(ii)

for all other radioactive material: A₂.

(b)

For a Type A package containing a mixture of radionuclides whose identities and respetive activities are known the following formulae shall apply:

(i)

To calculate package limit for special form radioactive material:

\sum_{i} \frac{B(i)}{A_{1} (i)} shall be less than or equal to 1

(ii)

To calculate package limit for other forms of radioactive material:

\sum_{i} \frac{B(i)}{A_{2} (i)} shall be less than or equal to 1

where

B(i) is the activity of radionuclide i and A₁(i) and A₂(i) are the A₁ and A₂ values for radionuclide i, respectively.