### Gas Safety (Gas Supply) Regulations 《氣體安全 (氣體供應)規例》

7. Only approved containers may be used to contain liquefied petroleum gas
(1) Subject to subregulation (2), the owner of a container shall not use the container to contain liquefied petroleum gas unless the container— (22 of 1996 s. 7)
(a) has been approved in writing, or is of a type which has been approved in writing, by the Authority for such use; or
(b) is of a type which has been approved under regulation 64 of the Dangerous Goods (General) Regulations (Cap. 295 sub. leg. B) for such use and such approval was in force immediately before the commencement* of the Ordinance. (E.R. 5 of 2022)
(2) Where the Authority is satisfied that a container to which subregulation (1)(a) or (b) applies—
(a) has shown to be prejudicial to the safety of the members of the public; or
(b) has, for any other reason (including its supersession by another type of container), ceased to be of a standard of safety acceptable to the Authority,
then the Authority may, by notice in the Gazette, specify a date on and after which the owner of the container shall cease to use the container to contain liquefied petroleum gas. (22 of 1996 s. 7)
(3) No person shall, without reasonable excuse, use a container the subject of a notice under subregulation (2) to contain liquefied petroleum gas on or after the date specified in the notice as the date on which such use of the container shall cease. (22 of 1996 s. 7)

Editorial Note:
* Commencement date: 1 April 1991.

### Gas Safety (Gas Supply) Regulations 《氣體安全 (氣體供應)規例》

9. Pressure relief valves fitted to cylinders
The owner of a cylinder which has a water capacity of—
(a) not less than 40 litres, shall not use the cylinder to contain liquefied petroleum gas unless the cylinder is fitted with a pressure relief valve—
(i) of the spring-loaded, or equivalent, type; and
(ii) in contact with the vapour space of the cylinder when it is positioned for normal use;
(b) less than 40 litres, shall not, subject to paragraph (c), use the cylinder to contain liquefied petroleum gas if the cylinder is fitted with a pressure relief valve unless the cylinder has—
(i) been used to contain such gas before the commencement* of the Ordinance; and
(ii) not been re-valved on or after that commencement; and
(c) less than 40 litres, shall not use the cylinder to provide—
(i) liquefied petroleum gas to a dim sum trolley; or
(ii) such gas in liquid form,
unless the cylinder is fitted with a pressure relief valve.

Editorial Note:
* Commencement date: 1 April 1991.

10. Filling capacity of tanks and cylinders
(1) The owner of a tank shall not set a fixed maximum level device fitted to the tank other than at a setting such that, at a temperature of—
(a) 47.5 degrees centigrade, the tank will not be more than 97% full of liquefied petroleum gas in liquid form; and
(b) 52.5 degrees centigrade, the tank will not be full of liquefied petroleum gas in liquid form.
(2) No person shall fill a tank or cylinder with liquefied petroleum gas other than such that, at a temperature of—
(a) 47.5 degrees centigrade, the tank will not be more than 97%, and the cylinder will not be more than 95%, full of liquefied petroleum gas in liquid form; and
(b) 52.5 degrees centigrade, the tank or cylinder will not be full of liquefied petroleum gas in liquid form.

### Gas Safety (Gas Supply) Regulations 《氣體安全 (氣體供應)規例》

11. Requirements for liquefied petroleum gas storage installations
The owner of a liquefied petroleum gas storage installation shall ensure that—
(a) the installation is well-ventilated;
(b) the installation is accessible for—
(i) the replacement and maintenance of the tanks or cylinders which comprise the installation; and
(ii) fire-fighting purposes in the event of a fire in or near the installation;
(c) any safety feature provided for the installation, being a radiation wall, fixed water drenching system or diversion kerb, together with the distances between the tanks or cylinders which comprise the installation and any—
(i) property boundary;
(ii) fixed source of ignition; or
(iii) building other than the building in which the installation is situated,
are such that—
(A) the risk of any liquefied petroleum gas escaping from the installation being ignited before being dispersed or diluted is, so far as is practicable, minimized; and
(B) the installation is protected against the radiation effects of any fire occurring outside the installation;
(d) ventilation and explosion relief measures other than explosion relief panels are provided for the installation; and
(e) where the installation is part of a piped gas supply system and more than one tank or cylinder which comprises the installation is at any one time providing liquefied petroleum gas to such system by means of flexible gas tubing connected to a common manifold, the installation has incorporated in it safety devices which will ensure that if such tubing between one such tank or cylinder and the common manifold fails, such failure does not cause the complete loss of such gas from any other tank or cylinder which is connected by such tubing to such manifold.

12. Requirements for tanks
(1) The owner of a tank which is placed—
(a) below ground level; or
(b) above ground level and covered with sand or earth,
shall not use the tank to contain liquefied petroleum gas unless the tank—
(i) is covered with a coating material—
(A) bonded to all external surfaces of the tank; and
(B) which will protect the tank against corrosion; and
(ii) is fitted with a cathodic protection system together with a test point for such system.
(2) The owner of a tank which is fitted with a cathodic protection system as required by subregulation (1)(ii) shall cause such system to be tested not less than once in each 6 months period and the results of such test to be recorded in writing and retained until the tank ceases to be used to contain liquefied petroleum gas. (L.N. 350 of 1990)

13. Provision of shut-off valves for vaporisers
No person shall use any vaporiser to vaporise liquefied petroleum gas unless shut-off valves have been fitted to each liquid or vapour line between the vaporiser and the container for which it is provided.