Hong Kong Regulations

GAS SAFETY (INSTALLATION AND USE) REGULATIONS - REGULATION 5

General safety precautions

(1) No person shall carry out work in relation to a gas fitting in such a
manner that gas could escape unless steps are taken to prevent any escape of
gas which constitutes a danger to any person or property.

(2) No person carrying out work in relation to a gas fitting shall leave such
fitting unattended unless every incomplete gasway has been sealed so as to be
gastight or such fitting is otherwise safe.

(3) A person who disconnects a gas fitting shall seal off each outlet of each
gas pipe to which it was connected so that each such outlet is gastight.

(4) No person carrying out work in relation to a gas fitting which involves
exposing gasways which contain or have contained flammable gas shall smoke or
use any source of ignition unless those gasways have been purged so as to
remove all such gas or have otherwise been made safe from risk of fire or
explosion.

(5) No person searching for an escape of gas from a gas fitting shall use any
source of ignition.

(6) Where a person carries out work in relation to a gas fitting which might
affect the gastightness of the gas supply system of which such fitting is a
part, he shall immediately thereafter test such system for gastightness at
least as far as the nearest gas valves upstream and downstream in such system.
(Enacted 1990)