Nuclear Substances and Radiation Devices Regulations — 1
1 The definitions in this section apply in these Regulations. Act means the Nuclear Safety and Control Act . ( Loi ) bulk quantity means, in respect of the terms exemption quantity and unconditional clearance level , (a) when referred to in section 5, a quantity of material greater than one tonne; and (b) when referred to in section 5.1, a quantity of material greater than one tonne per year per nuclear facility. ( quantité en vrac ) certificate means a document issued by the Commission or by a designated officer authorized under paragraph 37(2)(a) or (b) of the Act, indicating that prescribed equipment or a person is certified. ( attestation ou homologation ) certified means certified by the Commission under paragraph 21(1)(h) or (i) of the Act or by a designated officer authorized under paragraph 37(2)(a) or (b) of the Act. ( homologué ) Class II prescribed equipment has the meaning assigned to that term by section 1 of the Class II Nuclear Facilities and Prescribed Equipment Regulations . ( équipement réglementé de catégorie II ) conditional clearance level means an activity concentration that does not result in an effective dose (a) greater than 1 mSv in a year due to a low probability event referred to in the IAEA Safety Standard RS-G-1.7; or (b) greater than 10 µSv in a year. ( niveau de libération conditionnelle ) depleted uranium means uranium that contains uranium 235 in a concentration that is less than that normally found in nature. ( uranium appauvri ) dosimeter means a device for measuring a dose of radiation that is worn or carried by an individual. ( dosimètre ) effective dose has the meaning assigned to that term by subsection 1(1) of the Radiation Protection Regulations . ( dose efficace ) exemption quantity means any of the following: (a) in respect of a radioactive nuclear substance set out in column 1 of Schedule 1, (i) if the radioactive nuclear substance is uniformly distributed in material and not in bulk quantity, the corresponding activity concentration set out in column 2, or (ii) the corresponding activity set out in column 3; (b) in respect of a radioactive nuclear substance that is not set out in column 1 of Schedule 1, (i) if the atomic number of the substance is equal to or less than 81, (A) 10 Bq/g if the radioactive nuclear substance is uniformly distributed in material and not in bulk quantity, or (B) 10,000 Bq, (ii) if the atomic number of the substance is greater than 81 and the substance, or its short-lived radioactive progeny, does not emit alpha radiation, (A) 10 Bq/g if the radioactive nuclear substance is uniformly distributed in material and not in bulk quantity, or (B) 10,000 Bq, or (iii) if the atomic number of the substance is greater than 81 and the substance, or its short-lived radioactive progeny, emits alpha radiation, (A) 1 Bq/g if the radioactive nuclear substance is uniformly distributed in material and not in bulk quantity, or (B) 1,000 Bq; or (c) in respect of more than one radioactive nuclear substance, (i) if the radioactive nuclear substances are uniformly distributed in material and not in bulk quantity, the quotient obtained by dividing the total activity concentration by the sum of quotients obtained by dividing the activity concentration of each radioactive nuclear substance by its corresponding exemption quantity as referred to in paragraph (a) or (b), or (ii) the quotient obtained by dividing the total activity by the corresponding sum of quotients obtained by dividing the activity of each radioactive nuclear substance by its corresponding exemption quantity as referred to in paragraph (a) or (b). ( quantité d’exemption ) exposure device means a radiation device that is designed for carrying out gamma radiography, and includes any accessory to the device such as a sealed source assembly, a drive mechanism, a sealed source assembly guide tube and an exposure head. ( appareil d’exposition ) IAEA Safety Standard RS-G-1.7 means the IAEA Safety Standards, Safety Guide N