Transportation of Dangerous Goods Regulations

1.51 Parts 3 to 6 and 8 do not apply to the importing, offering for transport, handling or transporting of dangerous goods that are UN1002, AIR, COMPRESSED, UN1046, HELIUM, COMPRESSED or UN1066, NITROGEN, COMPRESSED if

• (a) the dangerous goods are contained in and are not intended to be discharged from a water pump system tank that

  • (i) is designed, manufactured, tested and marked in accordance with ANSI/WSC PST,

  • (ii) is filled, closed, secured and maintained so that under normal conditions of transport, including handling, there is no release of the dangerous goods that could endanger public safety, and

  • (iii) is made of steel or composite material, has ends concave to pressure and has a maximum outside diameter of 660.4 mm;

• (b) the pressure in the tank when filled for transport with the dangerous goods is less than or equal to 280 kPa at 20°C; and

• (c) the tank is packed in a strong outer packaging.