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 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