A sealed source of a type not described in any other row of this Table

4 x 10⁶ Bq

2 x 10⁸ Bq

A Class A gaseous tritium light device

2 x 10¹⁰ Bq

5 x 10¹² Bq

A Class B gaseous tritium light device

1 x 10¹² Bq

3 x 10¹³ Bq

A Class C gaseous tritium light device

1 x 10¹² Bq

No limit

Any sealed source which is solely radioactive material or radioactive waste because it contains tritium

2 x 10¹⁰ Bq

5 x 10¹² Bq

A tritium foil source

2 x 10¹⁰ Bq

5 x 10¹² Bq

A smoke detector affixed to premises

4 x 10⁶ Bq

No limit

An electrodeposited source

6 x 10⁸ Bq Ni-63 or 2 x 10⁸ Bq Fe-55

6 x 10¹¹ Bq

A luminised article

8 x 10⁷ Bq Pm-147 or 4 x 10⁹ Bq H-3

4 x 10¹⁰ Bq Pm-147 or 2 x 10¹¹ Bq H-3

A Ba-137m eluting source

4 x 10⁴ Bq Cs-137+

4 x 10⁵ Bq Cs-137+

A substance or article which is or contains magnesium alloy or thoriated tungsten in which the thorium concentration does not exceed 4% by mass

No limit

No limit

A uranium or thorium compound

Up to a total of 5kg of uranium and thorium

Up to a total of 5kg of uranium and thorium

A substance or article (other than a sealed source) which is intended for use for, used for, or arises from medical or veterinary diagnosis or treatment or clinical or veterinary trials

1 x 10⁹ Bq Tc-99m

and

F12 x 10⁸ Bq of all other radionuclides, (no more than 1 x 10⁸ Bq of which is contained in radioactive material)

2 x 10⁸ Bq of all other radionuclides, (no more than 1 x 10⁸ Bq of which is contained in radioactive material)