
1 

(1) These Regulations may be cited as the Radioactive Substances (Basic Safety Standards) (Scotland) Regulations 2000 and shall come into force on 13th May 2000.
(2) These Regulations extend to Scotland only.
2 

(1) In section 15(1) (further exemptions from sections 13 and 14) of the Radioactive Substances Act 1993 after the words “clocks or watches” (where those words first appear) there shall be inserted the following:–“
(a) where the total quantity taken together of each of the radionuclides listed in column 1 of Table A below present in the clocks and watches on any premises does not exceed the amount set out in column 2–

TABLE A
Radioactive material Relevant value
Tritium 109 becquerels
Promethium 147 107 becquerels
Radium 226 104 becquerelsor
(b) where
(i) the total quantity of the radionuclides listed in column 2 of Table B below present in each such clock or watch of the type listed in column 1 of that table does not exceed the amount set out in column 3–

TABLE B
Type of clock or watch Radioactive material Relevant value (becquerels)

(i) Luminised time measurement instruments-(a) worn or carried on the person TritiumPromethium 147 2.8 × 1085.5 × 106
(b) not worn or carried on the person TritiumPromethium 147 3.7 × 1087.4 × 106

(ii) Special luminised time measurement instruments TritiumPromethium 147 9.3 × 1081.9 × 107

(iii) Watches containing gaseous tritium light sources Tritium 7.4 × 109

(iv) Radium luminised timepieces-(a) wristwatches Radium 226 3.7 × 103
(b) alarm clocks Radium 226 5.5 × 103
(c) special time measurement instruments Radium 226 5.6 × 104
 and
(ii) no more than five items falling within Table B which constitute radioactive waste are present on any premises”.
SARAH BOYACK
A member of the Scottish Executive
St Andrew’s House,
Edinburgh
31st March 2000