SCHEDULE 23Radioactive substances activities

PART 6Radioactive substances activity exemptions

SECTION 9Tables and summation rules in this Part

F1Table 4A25A

1

The Table 4A referred to in Sections 2, 5 and 6 of this Part is—

Table 4ANORM waste concentrations and maximum disposal quantities

Radionuclide

Type 1 NORM concentration (Bq/g)

Type 1 NORM total activity for landfill (GBq/year)

Type 1 NORM total activity for incineration (MBq/year)

Type 2 NORM concentration (Bq/g)

U-238sec

5

50

100

10

U238+

5

50

100

10

U-234

5

50

100

10

Th-230

5

50

100

10

Ra-226+

5

50

100

10

Pb-210+

100

1000

100

200

Po-210

100

1000

100

200

U-235sec

5

50

100

10

U-235+

5

50

100

10

Pa-231

5

50

100

10

Ac-227+

5

50

100

10

Th-232sec

5

50

100

10

Th-232

5

50

100

10

Ra-228+

5

50

100

10

Th-228+

5

50

100

10

2

The summation rule in respect of columns 2 and 5 of Table 4A is the sum of the quotients A/B where—

a

“A” means the concentration of each radionuclide listed in column 1 of Table 4A that is present in the substance or article; and

b

“B” means the concentration of that radionuclide specified in column 2 or 5 (as appropriate) of Table 4A.

3

The summation rule in respect of columns 3 and 4 of Table 4A is the sum of the quotients C/D where—

a

“C” means the quantity of each radionuclide listed in column 1 of Table 4A that is present in the substance or article; and

b

“D” means the quantity of that radionuclide specified in column 3 or 4 (as appropriate) of Table 4A.