1964_DANGEROUS_GOODS_(GENERAL)_REGULATIONS — Page 34

B 34

[Subsidiary]

L.N. 40/73.

CAP. 295] Dangerous Goods (General) Regulations

[1983 Ed.

(b) in the case of a cylinder for carbon dioxide, nitrous oxide, ethylene or monochlorotrifluoromethane (Arcton 13, Freon 13)-

(i) by hydraulic stretch test to a pressure of not less than 23 MPa, and

(ii) by hydraulic pressure test to a pressure of not less than 21 MPa;

(c) in the case of a cylinder for liquefied petroleum gas, by

hydraulic pressure test conducted as follows-

(i) a hydraulic test pressure in accordance with the Reid Vapour Pressure at 37.8°C of the liquefied petroleum gas which is to be contained shall be applied to the cylinder and maintained for a period of not less than 10 minutes;

(ii) the value of the Reid Vapour Pressure expressed in kilopascals, gauge pressure, shall be derived by NGPA standard method No. 2140-62;

(iii) the minimum hydraulic test pressure to be applied in respect of a specified Reid Vapour Pressure at 37.8°C in the first column of the table to this sub-paragraph shall be the minimum hydraulic test pressure appearing in the second column of the table opposite to the appropriate Reid Vapour Pressure;

(iv) if the cylinder is intended to contain commercial propane, the hydraulic test pressure shall be not less than 3 700 kPa, gauge pressure;

Reid Vapour Pressure

at 37.8°C-gauge

pressure

TABLE

Minimum hydraulic

test pressure- gauge pressure

kPa

kPa

up to 500

1 500

501-550

1 600

551-600

1 700

601-650

1 800

651-700

1.900

701-750

2.000

751-800

2:100

over 800

3.700

(d) in the case of a cylinder for any liquefied gas, other than a gas mentioned in sub-paragraph (b) or (c), by hydraulic pressure test in each case to a pressure of not less than one and one-third times the working pressure, if any, specified in the third column of the table to regulation 70(2) for the gas for which such cylinder is intended; and