coding of tanks
|
part |
description |
tank code |
|
1 |
types of tank |
l = tank for substances in the liquid state (liquids or solids handed over for carriage in the molten state);
s = tank for substances in the solid state (powdery or granular). |
|
2 |
calculation pressure |
g = minimum calculation pressure according to the general requirements of 6.8.2.1.14; or
1.5; 2.65; 4; 10; 15 or 21= minimum calculation pressure in bar (see 6.8.2.1.14). |
|
3 |
openings (see 6.8.2.2.2) |
a = tank with bottom-filling or bottom-discharge openings with 2 closures; |
|
b = tank with bottom-filling or bottom-discharge openings with 3 closures;
c = tank with top-filling and discharge openings with only cleaning openings below the surface of the liquid;
d = tank with top-filling and discharge openings with no openings below the surface of the liquid. |
||
|
4 |
safety valves/devices |
v = tank with a breather device, according to 6.8.2.2.6, but no device protecting against the propagation of a flame; or non-explosion pressure shock resistant tank ;
f = tank with a breather device, according to 6.8.2.2.6, fitted with a device protecting against the propagation of a flame; or explosion pressure shock resistant tank ;
n = tank without a breather device according to 6.8.2.2.6 and not hermetically closed; |
|
b = tank with bottom-filling or bottom-discharge openings with 3 closures;
c = tank with top-filling and discharge openings with only cleaning openings below the surface of the liquid;
d = tank with top-filling and discharge openings with no openings below the surface of the liquid. |