4.1.3.6 Pressure receptacles for liquids and solids

Road tank vehicles, rail tank wagons, non metallic tanks, intermediate bulk containers (IBCs), gas cylinders and large receptacles are not considered to fall within the definition for portable tanks

In this case, boiling water canning is for canning things that are already pretty acidic.

For refrigerated liquefied gases, the escaping vapour shall be directed away from the tank and in such a manner that it cannot impinge upon the tank.

Furthermore, the shell shall not be liquid full at 60 C.

This device shall also prevent an unacceptable amount of leakage of liquid in the case of overturning or entry of foreign matter into the tank.

4.2.4.2.4 Refrigerated liquefied gases are assigned to portable tank instruction T75.

(a) in an ullage condition liable to produce an unacceptable hydraulic force due to surge within the portable tank

and degree of filling requirements for non refrigerated liquefied gases permitted for transport in portable tanks.

For flammable non refrigerated liquefied gases, the escaping vapour shall be directed away from the shell in such a manner that it cannot impinge upon the shell.

This portable tank instruction applies to non refrigerated liquefied gases.

Tanks shall be hydraulically tested and internally inspected at intervals not exceeding 2.5 years.

4.2.3 General requirements for the use of portable tanks for the transport of refrigerated liquefied gases

combination packagings having inner packagings containing liquid dangerous goods

Sufficient ullage (outage) shall be left to ensure that the pressure receptacle will not be liquid full at a temperature of 55 C.

Portable tank means a multimodal tank having a capacity of more than 450 litres used for the transport of non refrigerated liquefied gases of Class 2.

4.2.2 General requirements for the use of portable tanks for the transport of non refrigerated liquefied gases

Non refrigerated liquefied gases shall be transported in portable tanks conforming to portable tank instruction T50 as described in 4.2.4.2.6 and any portable tank special provisions assigned to specific refrigerated liquefied gases in Column 11 of the Dangerous Goods List and described in 4.2.4.3.

4.2.1.10.1 All portable tanks intended for the transport of flammable liquids shall be closed and be fitted with relief devices in accordance with 6.6.2.8 to 6.6.2.15.

Shell means the part of the portable tank which retains the non refrigerated liquefied gas intended for transport (tank proper), including openings and their closures, but does not include service equipment or structural equipment

These portable tank instructions apply to liquid and solid substances of Classes 3 to 9.

Wall thickness shall be verified ultrasonically at intervals midway between periodic hydraulic tests.

There shall be no openings below the liquid level of the shell when it is filled to its maximum permissible filling limit.

(d) If there is any doubt as to whether or not residual liquid may be present in the primary receptacle during transport then a packaging suitable for liquids, including absorbent materials, shall be used.

Portable tank means a thermally insulated multimodal tank having a capacity of more than 450 litres fitted with service equipment and structural equipment necessary for the transport of refrigerated liquefied gases.

This device should also prevent an unacceptable amount of leakage of liquid in the case of overturning or entry of foreign matter into the tank.

(i) for a non refrigerated liquefied gas listed in the portable tank instruction T50 in 4.2.4.2.6, the MAWP (in bar) given in T50 portable tank instruction for that gas

The shell design shall take into account the minimum MAWP values provided in portable tank instruction T50 in 4.2.4.2.6 for each non refrigerated liquefied gas intended for transport.

4.2.3.1 This section provides general requirements applicable to the use of portable tanks for the transport of refrigerated liquefied gases.

6.6.4 Requirements for the design, construction, inspection and testing of portable tanks intended for the transport of refrigerated liquefied gases

6.6.3.7.3 Portable tanks intended for the transport of certain non refrigerated liquefied gases identified in portable tank instruction T50 in 4.2.4.2.6 shall have a pressure relief device approved by the competent authority.

Shell means the part of the portable tank which retains the refrigerated liquefied gas intended for transport, including openings and their closures, but does not include service equipment or external structural equipment

When dangerous goods are transported at elevated temperatures in either liquid or solid state, the shell shall be thermally insulated to meet this condition.

6.6.4.2.15 Portable tanks intended for the transport of flammable refrigerated liquefied gases shall be capable of being electrically earthed.

4.2.3.6.1 Prior to filling the shipper shall ensure that the portable tank is approved for the refrigerated liquefied gas to be transported and that the portable tank is not loaded with refrigerated liquefied gases which in contact with the materials of the shell, gaskets and service equipment, are likely to react dangerously with them to form dangerous products or appreciably weaken the material.

6.6.4.2.2 Any part of a portable tank, including fittings, gaskets and pipe work, which can be expected normally to come into contact with the refrigerated liquefied gas transported shall be compatible with that refrigerated liquefied gas.

4.2.2.1 This section provides general requirements applicable to the use of portable tanks for the transport of non refrigerated liquefied gases.

Test pressure means the maximum gauge pressure at the top of the shell during the hydraulic pressure test equal to not less than 1.5 times the design pressure.

6.6.3 Requirements for the design, construction, inspection and testing of portable tanks intended for the transport of non refrigerated liquefied gases

6.6.4.2.8 A reference holding time shall be determined for each refrigerated liquefied gas intended for transport in a portable tank.

Refrigerated liquefied gases shall be transported in portable tanks conforming to portable tank instruction T75 as described in 4.2.4.2.6 and the portable tank special provisions assigned to each substance in the Dangerous Goods List and described in 4.2.4.3.

UNICEF rapidly flew in relief supplies, including water storage tanks and purification tablets, vaccines, oral rehydration salts (ORS) and vitamin supplements.

Filling density means the average mass of non refrigerated liquefied gas per litre of shell capacity (kg l).

4.2.2.7.2 The maximum mass of non refrigerated liquefied gas per litre of shell capacity (kg l) shall not exceed the density of the non refrigerated liquefied gas at 50 C multiplied by 0.95.

6.6.3.2.5 The materials of the portable tank, including any devices, gaskets, and accessories, shall not adversely affect the non refrigerated liquefied gases intended for transport in the portable tank.