Protection from Harmful Radiation Regulation 2025
6Definition of “radioactive substance”
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6 Definition of “radioactive substance”
6 Definition of “radioactive substance”
For the Act, section 4(1), definition of radioactive substance—
(a) the prescribed amount is 100 Bq per gram, and
(b) the prescribed activity of a radioactive element is set out in Schedule 1, table, and
(c) a substance has the prescribed activity if the expression—
where—
A1 represents the total activity, in kBq, of the Group 1 radionuclides contained in the substance.
A2 represents the total activity, in kBq, of the Group 2 radionuclides contained in the substance.
A3 represents the total activity, in kBq, of the Group 3 radionuclides contained in the substance.
A4 represents the total activity, in kBq, of the Group 4 radionuclides contained in the substance.
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