ADR tank code S4AH

ADR tank code for Classes 1 and 3–9: solid tank, 4 bar, openings A, hermetically closed.

S4AH is decoded part by part from the 4.3.4.1.1 table for Classes 1 and 3–9. Part 1 "S" is a tank for solid-state substances (powdery or granular); part 2 "4" is minimum calculation pressure of 4 bar (see 6.8.2.1.14). Part 3 "A" (openings): filling or discharge openings at the bottom, each with 2 closures. Part 4 "H" (safety valves/devices): the tank is hermetically closed (see 1.2.1). The code gives the least stringent tank accepted; others may be used under the hierarchy in 4.3.4.1.2.

Note. Tank codes permitted in place of this one: see the rationalized approach and hierarchy in 4.3.4.1.2 (Volume II pages 217–222); not computed here.

Refers to: 4.3.4.1.1; 4.3.4.1.2; 6.8.2.1.14; 6.8.2.2.2; 6.8.2.2.6; 1.2.1.

Carried by 3 Table A entries

UN 3152 · UN 3291 · UN 3432