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Nuclear Substances and Radiation Devices Regulations

Version of section 7 from 2006-03-22 to 2008-04-16:


 Subject to section 9, a person may possess, transfer, use or abandon a tritium-activated self-luminous safety sign without a licence to carry on that activity, if

  • (a) the only nuclear substance contained in the safety sign is tritium;

  • (b) the safety sign contains no more than 925 GBq of tritium in gaseous form;

  • (c) the light-emitting component containing the tritium consists of glass tubes that are enclosed in a sturdy metal or plastic frame mounted in a manner that prevents the dismantlement and removal of the glass tubes;

  • (d) the amount of tritium present in the form of oxide does not exceed 1 per cent per volume for each glass tube;

  • (e) the safety sign conforms to American National Standard N540-1975, Classification of Radioactive Self-Luminous Light Sources, of the American National Standards Institute or to United States Military Standard MIL-STD-810E, 1989, Environmental Test Methods and Engineering Guidelines, of the United States Department of Defense; and

  • (f) the safety sign is marked with the name and quantity in becquerels of the nuclear substance and the manufacturer’s recommended expiry date.

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