T codes Table
The listing of IMO Types has been replaced by the “T” code system.
T-Code specify the test pressure, shell thickness, pressure relief set up and bottom/top outlet arrangement. T-Code instructions apply to dangerous goods of classes 1 and 3 to 9. Class 2.
|
T-Code |
Minimum Test Pressure (bar) |
Minimum Shell Thickness |
Pressure-Relief Requirements |
Bottom Opening Requirements |
|---|---|---|---|---|
|
T1 |
1.5 |
> or = 6mm |
normal |
2 shut-off devices (Int + Ext) |
|
T2 |
1.5 |
> or = 6mm |
normal |
3 shut-off devices (Int + Ext + cap/blank) |
|
T3 |
2.65 |
> or = 6mm |
normal |
2 shut-off devices (Int + Ext) |
|
T4 |
2.65 |
> or = 6mm |
normal |
3 shut-off devices (Int + Ext + cap/blank) |
|
T5 |
2.65 |
> or = 6mm |
normal + rupture disc |
Not Allowed |
|
T6 |
4 |
> or = 6mm |
normal |
2 shut-off devices (Int + Ext) |
|
T7 |
4 |
> or = 6mm |
normal |
3 shut-off devices (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 |
3 shut-off devices (Int + Ext + cap/blank) |
|
T12 |
6 |
> or = 6mm |
normal + rupture disc |
3 shut-off devices (Int + Ext + cap/blank) |
|
T13 |
6 |
6mm |
normal |
Not Allowed |
|
T14 |
6 |
6mm |
normal + rupture disc |
Not Allowed |
|
T15 |
10 |
>or = 6mm |
normal |
3 shut-off devices (Int + Ext + cap/blank) |
|
T16 |
10 |
> or = 6mm |
normal + rupture disc |
<3 shut-off devices (Int + Ext + cap/blank)/td> |
|
T17 |
10 |
6mm |
normal |
3 shut-off devices (Int + Ext + cap/blank) |
|
T18 |
10 |
6mm |
normal + rupture disc |
Not Allowed |
|
T19 |
10 |
6mm |
normal + rupture disc |
3 shut-off devices (Int + Ext + cap/blank) |
|
T20 |
10 |
8mm |
normal + rupture disc |
Not Allowed |
|
T21 |
10 |
10mm |
normal |
Not Allowed |
|
T22 |
10 |
10mm |
normal + rupture disc |
Not Allowed |
