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    " (1A) The circumstances referred to in subsection (1) are that - 


(a) no radionuclide other than tritium, promethium 147 or radium 226 is present in any clock or watch on the premises (whether or not any radioactive waste arises from it),

(b) no such clock or watch contains more than one of those radionuclides, and

(c) either subsection (1B) or subsection (1C) is satisfied.



    (1B) This subsection is satisfied if the total quantity of tritium divided by 10⁹, plus the total quantity of promethium 147 divided by 10⁷, plus the total quantity of radium 226 divided by 10⁴, in all such clocks and watches does not exceed 1 (quantity in each case being measured in becquerels).

    (1C) This subsection is satisfied if - 



(a) all such clocks and watches fall within a description specified in the first column of the Table below;

(b) radioactive waste arises from no more than five of them; and

(c) none of them gives rise to a quantity of radioactive waste exceeding the figure in the third column of the Table corresponding to the relevant radionuclide listed in the second column.



Table


Description of clock or watch	Radionuclide	Relevant quantity (in becquerels)
(i) Clocks or watches having their dials marked at the time of manufacture with "T 25" (Tritium), "Pm 0.5" (Promethium 147) or "Ra 1.5" (Radium 226)	Tritium Promethium 147 [a] Radium 226	9.3 x 108 1.9 x 107 5.6 x 104
(ii) Clocks bearing radioluminescent deposits and not falling within category (i)	Tritium Promethium 147 Radium 226	3.7 x 108 7.4 x 106 7.4 x 103
(iii) Watches bearing radioluminescent deposits and not falling within category (i)	Tritium Promethium 147 Radium 226	2.8 x 108 5.5 x 106 5.6 x 103
(iv) Watches containing small sealed glass tubes internally coated with a phosphor and filled with tritium gas	Tritium	7.4 x 109"

Michael Meacher
Minister of State Department for Environment, Food and Rural Affairs

13th December 2001

[2] 1972 c. 68; section 2(2) was amended by the Scotland Act 1998 (c. 46), Schedule 8 paragraph 15(3). The function conferred upon the Minister of the Crown under section 2(2) of the 1972 Act, so far as within devolved competence, was transferred to the Scottish Ministers by virtue of section 53 of the 1998 Act.back

[3] 1993 c. 12.back

 © Crown copyright 2001