1965-HKRS30-8-55_Part02 — Page 11

Schedule.

7

(v) the equivalent of ten milliroentgens per hour in the case of beta-radiation; or

(vi) those values of flux given in Table Ill to this regulation in the case of neutrons.

a label in the form of Label B prescribed in the Schedule (in this Part referred to as a Yellow Label).

(2) For the purposes of paragraph (1), the limits for dose rates referred to for each type of radiation shall be deemed to be equivalent in biological effectiveness.

(3) Any person who contravenes any of the provisions of paragraph (1) shall be guilty of an offence and liable on summary conviction to a fine of five thousand dollars.

TABLE III.

Neutron fluxes biologically equivalent to a dose rate of ten milliroentgens per hour of gamma radiation.

Energy of neutrons

Flux: Neutrons/can

0.025

cV

2670

10

*V

2670

10

key

1330

0.1

McV

270

0.5

MeV

110

I

MeV

80

2

Mey

53

3 to 10

MeV

40

TABLE I

Neutron fluxes biologically equivalent to a dose rate of ten millirocatgtos per twenty-four hours of gamma radiation.

Energy of neutrons

Flux: Neutrons/cm3

0.025

eV

111

10

CV

111

10

kav

56

0.1

MeV

11

D.J

McV

1

MeV

2

MeV

3 to 10

Mev

33

TABLE 12.

2

2

Neutron fluxes biologically equivalent to a dose tate of two hundred milliroentgens per hour of gamma radiation.

Energy of neutrons

Flux: Neutrons/cm3

0.02.5

eV

53300

10

EV

53300

10

kev

25700

0.1

M:V

5330

0.5

MeV

2130

I

MeV

1600

MeV

1070

3 to 10

MeV

800

of radioactive

5. (1) No person shall move, or cause or permit to be moved, by Conveyance land or water any radioactive substance except under and in accordance substances on with a written permit granted by the Authority.

(2) Except with the permission in writing of the Authority, no person shall convey, or cause or permit to be conveyed, on any one vehicle or vessel at any one time more than forty containers of radio- active substance bearing White or Yellow Labels or, in the case of containers bearing Yellow Labels, such lesser number of containers as will limit the total number of radiation units indicated on such Labels to a number not exceeding forty units.

(3) For the purposes of paragraph (2), the total of the dose rates of the following types of radiation measured at one metre from the external surface of a package, at the place where the value is highest, shall be called the number of radiation units for the package---

(a) for gamma- and/or X-radiation of energy greater than 200

keV: the number of milliroentgens per hour;

(b) for gamma- and/or X-radiation of which more than twenty per cent has an energy less than 200 keV: the number of milliro- entgens per hour multiplied by 3/2;

(c) for beta-radiation: the number of milliroentgens per hour

which is equivalent;

(d) for neutrons: the number of radiation units, according to the

flux relationship given in the Table to this paragraph.

vehicles or Teaseds.