T5 PORTABLE TANK INSTRUCTION T5
The general provisions of section 4.2.1 and the requirements of section 6.7.2 shall be met.
Minimum test pressure 2.65 bar
Minimum shell thickness (reference steel) 5 mm for tanks up to 1.80 m diameter and for larger tanks carrying solids of packing group II or III; 6 mm otherwise.
Pressure-relief provisions A frangible disc preceding a spring-loaded pressure-relief device, or an approved relief device constructed of materials compatible with the load.
Bottom opening provisions Not allowed.
Alternatives permitted T10, T14, T19, T20, T22

Special packing provisions:

TP4
The degree of filling shall not exceed 90% or, alternatively, any other value approved by the competent authority (see 4.2.1.16.2).