T-Codes

Portable Tank Regulations

These portable tank regulations apply to hazardous materials of Classes 3 through 9 that are transported in portable tanks.

T-Code Minimum Test Pressure (bar) Minimum Shell Thickness Pressure-Relief Requirements Bottom Opening Requirements
T1 1.5 > or = 6mm normal Int + Ext
T2 1.5 > or = 6mm normal Int + Ext + cap/blank
T3 2.65 > or = 6mm normal Int + Ext
T4 2.65 > or = 6mm normal Int + Ext + cap/blank
T5 2.65 > or = 6mm normal + rupture disc Not Allowed
T6 4 > or = 6mm normal Int + Ext
T7 4 > or = 6mm normal Int + Ext + cap/blank
T8 4 > or = 6mm normal Not Allowed
T9 4 6mm normal Not Allowed
T10 4 6mm normal + rupture disc Not Allowed
T11 6 > or = 6mm normal Int + Ext + cap/blank
T12 6 > or = 6mm normal + rupture disc Int + Ext + cap/blank
T13 6 6mm normal Not Allowed
T14 6 6mm normal + rupture disc Not Allowed
T15 10 > or = 6mm normal Int + Ext + cap/blank
T16 10 > or = 6mm normal + rupture disc Int + Ext + cap/blank
T17 10 6mm normal Int + Ext + cap/blank
T18 10 6mm normal + rupture disc Int + Ext + cap/blank
T19 10 6mm normal + rupture disc Not Allowed
T20 10 8mm normal + rupture disc Not Allowed
T21 10 10mm normal Not Allowed
T22 10 10mm normal + rupture disc Not Allowed

Additional special provisions may apply to certain products through TP Notes.