Hong Kong Regulations

GAS SAFETY (GAS QUALITY) REGULATIONS - REGULATION 3

Standard of pressure

No person shall supply any gas through-

   (a)  a service pipe; or

   (b)  a gas main, at a pressure which is less than the pressure specified in
        column 2 of the table to this regulation in relation to the range of
        Wobbe numbers specified opposite thereto in column 1 of that table
        applicable to the gas supplied.

TABLE

PRESSURE OF GAS SUPPLIED THROUGH SERVICE PIPES AND GAS MAINS

Column 1 Column 2 Range of Wobbe numbers in Megajoule per cubic metre Pressure
measured in kPa in excess of atmospheric pressure Not more than 31 More than
31 but not more than 40 More than 40 but not more than 72 More than 72 0.5
1
1.25
2 (Enacted 1990)