ADR tank code L4DH

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

L4DH is decoded part by part from the 4.3.4.1.1 table for Classes 1 and 3–9. Part 1 "L" is a tank for liquid-state substances (liquids, or solids handed over molten); part 2 "4" is minimum calculation pressure of 4 bar (see 6.8.2.1.14). Part 3 "D" (openings): filled and discharged from the top; nothing opens below the liquid surface. 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 39 Table A entries

UN 1790 · UN 2817 · UN 3129 · UN 3130 · UN 3132 · UN 3135 · UN 3148 · UN 3183 · UN 3184 · UN 3185 · UN 3186 · UN 3187 · UN 3188 · UN 3395 · UN 3396 · UN 3397 · UN 3398 · UN 3399 · UN 3421 · UN 3471