South Australian Numbered Regulations

RADIATION PROTECTION AND CONTROL (IONISING RADIATION) REGULATIONS 2015 (NO 203 OF 2015) - SCHEDULE 3

Schedule 3—Classification of premises

1         The classification of premises into Type A, Type B or Type C depends on—

            (a)         the groups to which the radionuclides kept or handled belong; and

            (b)         the maximum activities handled; and

            (c)         the type of operations performed on the premises.

2         If more than 1 radionuclide is handled, or if more than 1 type of operation is performed, then the highest classification found when all radionuclides and operations are separately considered is the classification of the premises (Type A = highest classification, Type C = lowest classification).

3         The maximum activity of a particular radionuclide handled on the premises should be multiplied by the modifying factors given in Table 1, and the results applied to Table 2 to determine the premises classification.

Table 1—Modifying factors

Type of operation	Factor
Simple storage (no operations)	0.01
Simple wet operations such as preparation of aliquots of stock solutions	0.1
Normal chemical operations involving few transfers	1
Complex chemical operations involving many transfers or complex apparatus	10
Simple dry operations (eg manipulation of powders)	10
Work with volatile radioactive compounds	10
Dry, dust producing operations such as grinding	100

Table 2—Premises classification

Group of radionuclide	Allowable activity range for:
	TYPE C	TYPE B	TYPE A
1	less than 400 kBq	400 kBq-40MBq	more than 40 MBq
2	less than 40 MBq	40 MBq-4 GBq	more than 4 GBq
3	less than 4 GBq	4 GBq-400 GBq	more than 400 GBq
4	less than 400 GBq	400 GBq-40 TBq	more than 40 TBq